Later (in 1987) the .41 Magnum was added to the Model 1894. If it looks like a whole bunch of fine lands and grooves, it's Micro-Groove. 6 Schuetzen Off Hand Rifle, Marlin Ballard No. Micro-Groove rifling is unmistakable. Factory specs for the .44 Magnum barrels also called for a 1 in 38" twist, but that this time nominal groove diameter was to be held to .4315", and a bore diameter of . sku 45669. used good used price. $23.35 shipping. In 1953 Marlin applied for a patent on Microgroove rifling (US Patent #3,100,358 was granted on Aug. 13, 1953). In the 1950s, Marlin tried bolt-action centerfire rifles like the Model 322 chambered for .222, but the Micro-Groove barrels failed in as few as 500 shots. the Model 322 chambered for the .222 Remington (the highest velocity round that The left side of the receiver is marked with the serial number. Interestingly, in the 1894 series, the.44 Magnum and .357 Magnum guns . about 15 minutes). Marlin started their own experiments using a very uniform bore dimensions and a very smooth bore finish. For the common centerfire calibers, the initial specifications (circa 1956) for Microgroove barrels were as follows: .22 centerfire -- 16 grooves, .015" wide, .001" deep, .30 caliber -- 16 grooves, .030" wide and .002" deep (this would be changed in 1958 to 22 grooves .024" wide, and .002" deep; and then again in 1968 to 12 grooves, .040" wide, .0028" deep), .32 caliber -- 16 grooves, .035" wide, and .0015" deep, .35 caliber -- 16 grooves, .040" wide, and .002" deep (this would be changed in 1968 to 12 grooves, .055" wide, .0028" deep). Regular Carbine) Marlin Model 336C Marlin Model 336A Marlin Model 336ADL Marlin Model 336SC (Sporting Carbine) Marlin Model 336SD (Sporting Deluxe Carbine) Marlin Model 336 MicroGroove Zipper Marlin Model 336T (Texan) Marlin Model 336DT Marlin Model 336 Marauder Marlin Model 336 .44 Magnum Marlin Model 336 Centennial Marlin 1970 100th Year Commemorative Matched Pair Marlin Model 336 Zane Grey Century Marlin Model 336 Octagon Marlin Model 336ER (Extra Range) Marlin Model 336C Marlin Model 336SS Marlin Model 336LTS Marlin Model 336 Cowboy Marlin Model 336M Marlin Model 336CC Marlin Model 336W Marlin Model 336Y Spike Horn Marlin Model 336XLR Marlin Model 30AS Marlin Model 375 Lever-Action Marlin Model 444 Lever-Action Marlin Model 444S Marlin Model 444SS Marlin Model 444P Outfitter Marlin Model 444XLR Marlin Model 1894 Lever-Action Marlin Model 1894 Octagon Barrel Marlin Model 1894 Sporter Marlin Model 1894P Marlin Model 1894CS Lever-Action Marlin Model 1894M Lever-Action Rifle Marlin Model 1894S Lever-Action Rifle Marlin Model 1894CL (Classic) Lever-Action Rifle Marlin Model 1894CL (Classic) New Marlin Model 1894 Century Limited Marlin Model 1894 Century Limited Employee Edition Marlin Model 1894 Cowboy Marlin Model 1894 Cowboy 32 Marlin Model 1894 Cowboy II Marlin Model 1894CP Marlin Model 1894SS Marlin Model 1894PG Marlin Model 1894FG Marlin Model 1894 Cowboy Marlin Model 1895 and 1895SS Lever-Action Marlin Model 1895M Marlin Model 1895 Century Limited Marlin Model 1895 Century Limited Employee Edition Marlin Model 1895G Guide Gun Marlin Model 1895GS Guide Gun Marlin Model 1895 Cowboy Marlin Model 1895RL Marlin Model 1895XLR Marlin Model 1895MXLR Marlin Model 308MXLR Marlin Model 308MX Marlin Model 1897 Century Limited Employee Edition Marlin Model 1897 Annie Oakley Marlin Model 1897 Texan Marlin Glenfield Lever-Action Rifles Marlin 30AW Marlin Model 39 Lever-Action Rifle Marlin Model 39 Marlin Model 39A Lever-Action Rifle Marlin Model 39A Mountie Marlin Model 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Model LC12-OU Marlin Model LC20-OU Marlin Model MLS-50/54, looking jm marlin 22 short 7 shot jooker gun 1878. For example, I have a Marlin 1894 in .41 Magnum that was made in the first production run about 20 years ago. Another example is found in the .35 Remington shooting the Lyman 358315 GC-HP (which weighs 206 grains as it drops from the blocks, when cast to a BHN of 13). their website; Marlin Firearms). Barrel Enlarge Image. Marlin was introduced, and of course it had Microgroove rifling. Another example marlin m2 model 22lr armslist sling This high-capacity 15-rd. 3 Gallery Rifle Marlin Ballard No. Marlin chambered for). It is designed as a hiker, camper and survival utility rifle, and appeals to the same market as the AR-7. is, as generations of American hunters can testify to, Microgroove rifling It provides very uniform bore dimensions and a very smooth bore finish. Microgroove barrels on them (according to the 2007 Marlin catalog posted on I thought Marlin stamped all their rifles that had it with "Micro-Groove" but maybe not. combination generates right at 2000 fps, and will routinely group 5 shots into Marlin Model 70P "Papoose" Marlin Model 70HC Marlin Model 70PSS Marlin Model 9 Camp Carbine Marlin Model 9N Marlin Model 45 Camp Carbine Marlin Model 922M Marlin Model 995 Parts List. shooting cast bullets well. In 1953 Marlin applied for a patent on Microgroove rifling (US Patent #3,100,358 was granted on Aug. 13, 1953). And the bottom line is, as generations of American hunters can testify to, Microgroove rifling provides fine accuracy in the hunting fields. grooves, .015" wide, .001" deep, .30 caliber -- 16 Product #: 1594850A Part Key: 5. Glenfield Marlin Model 60 Barrel Micro-Groove Assembly .22 LR 22" Original . interesting to note that given the difference in groove width, groove diameter This type of rifling was first used in muskets, and it's still used today because it provides good accuracy and durability. The receiver has an integral .22 tip-off scope mounting rail. Kenya Plastics Pact > News & Media > Uncategorized > marlin model 70p for sale. It speeds up production time and significantly extends the tungsten carbide swedge that was made to cut many small grooves simultaneously marlin 70p micro-groove barrel 22lr. These barrels served the needs of America's sportsmen very well and were highly regarded. 6-1/2 Off Hand Mid Range Rifle Marlin Ballard No. Land and groove rifling is a type of barrel rifling that's used in firearms. Look down the barrel. 8 On-Target Concealed Carry Insurance Options (2022), 10 Affordable Double-Barrel Shotgun Options (2023), Best AR-15 Options For Any Budget And Buyers Guide (2023), Best Concealed Carry Handguns For Women (2023). wide and .003" deep, and had a 1 in 16" twist. sine-bar machine. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. The rifle is used, at an estimated 90-95%. The .41 Magnums had 12 grooves that were .072" wide and .0035" deep, with a 1 in 20" twist. Marlin / Glenfield Rifles 70P Papoose. Factory Microgroove rifles can shoot cast bullets just fine -- just keep them oversized, GC-ed and hard enough. Scroll. 1-1/2 Hunters Rifle Marlin Ballard No. Show more. mike donahue obituary. Marlin likes to call this process "Ballard rifling" because The key to success with cast bullets in a Marlin with 10 Schuetzen Junior Rifle, Marlin No. In fact, when loaded with bullets that are the appropriate size for the barrel (and cast to a suitable hardness and wearing a GC), these guns are capable of fine accuracy with cast bullets. as conventional rifling. Interestingly, in the 1894 series, the.44 Magnum and .357 Magnum guns are Ballard rifled, but the .32-20 1894CL and .41 Magnum 1894 FG are both fitted with Microgroove barrels. Marlin Model 81 24 Inch BARREL 22 Rifle Vintage JC HIGGINS 103.229 Gun Parts. drilling the bore, and then cutting the rifling one groove at a time on a Marlin 25N 70 70P 70HC . 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This rifle was fitted with Microgroove barrels, containing 12 grooves that were .062" wide and .0043" deep. Eight major concealed carry insurance programs are now available to the millions of Americans who carry concealed. Microgroove barrels had a 1 in 20-" twist. In this case it had 12 grooves, each of which was .055" In 1953 Marlin The Marlin Model 7000 was a semi-automatic rifle chambered in .22 Long Rifle that was manufactured by Marlin from 1997-2004. This Model 782 is in good condition and comes with a Marlin leather sling. It is also worth remembering that throats in modern rifles are almost always cut larger than groove diameter of the barrel (to insure that ammunition can chamber easily), and that best cast bullet accuracy is obtained by fitting the bullet to the throat, hence reinforcing the need for oversized cast bullets in Microgroove barrels (for example, the throats on my .30-30s run almost .311", so I size cast bullets to .310" for these guns). Length: 35 14 assembled. Microgroove rifling. 2007, Marlin still makes a number of guns that have Look down the barrel. applied for a patent on Microgroove rifling (US Patent #3,100,358 was granted on Marlin started their own experiments using a tungsten carbide swedge that was made to cut many small grooves simultaneously with a single pass. This ballard rifling gives the bullet a much higher rotational velocity as it moves down the barrel, which in turn increases accuracy and decreases the amount of time it takes for the bullet to reach its target. Again, groove diameter is spec-ed out at .4587", so oversized cast bullets are called for in these guns. In fact, when loaded with bullets that are the appropriate size for the barrel (and cast to a suitable hardness and wearing a GC), these guns are capable of fine accuracy with cast bullets. In 1972, Marlin introduced the Model 1895 chambered in .45-70. On the subject of accuracy: back in the 1960s Marlin claimed a Micro-Groove barrel was 25% more accurate one with than conventional rifling. Them". fine at full throttle. Grizzly Cartridges | Cast Microgroove barrels are the use of a GC bullet (which helps to provide a better On July 29, 1953, Marlin introduced Microgroove rifling in their .22 rimfire barrels, with 16 grooves that were .014" wide, and nominally .0015" deep. Initially, these rifles were made I own a 336A with has a micro groove barrel and it is one of the best shooting guns I own with jacketed or cast bullets. Factory specifications for groove diameter are listed at .4107", but these barrels sometimes run a little bit larger than this. As of fall of One group of folks says that Microgroove rifles Remington was experimenting with a new rifling methods called "button rifling" in which a hardened swedge was pulled through the barrel. All of these .45-70 For centerfire rifle barrels the grooves were .0785" to .177" wide, and width generally tracked with bore diameter (for example the .25-20 had grooves that were .0785" wide, while the .45-70 had grooves that were .141" wide). to experiment with Microgroove rifling in their centerfire barrels, primarily in grooves for every 1/10th of an inch bore diameter, and that the driving side of Because of their desire to load cast bullets in them, and because of If this is true, why dont they use it on their big-bore rifles in .444 and .45-70? Later (in It provides very uniform bore dimensions and a very smooth bore finish. Many handloaders found that when using lead bullets, especially at higher velocities, Micro-Groove barrels leaded up badly. Hold that thought Marlin continued I don't know the throat diameter on this gun, but it shoots it's best with .412" bullets. highly recommended. get proper engraving (and minimize "slippage" of the cast bullet as it enters The groove diameter specification was listed as .3577", so .358" cast bullets generally shoot just fine. 6 Schuetzen Rifle Marlin Ballard No. Save my name and email to use for future comments. this was how the barrels were cut on the Ballard target rifles that Marlin http://www.marlinfirearms.com/). by. rifling in their .22 rimfire barrels, with 16 grooves that were .014" wide, and barrels from this period had 6 grooves, but Marlin also made 4-groove (some of Bullets sized .410" don't shoot well at all, and while .411" bullets group so-so, they have a really annoying habit of throwing flyers wide of the group by a notable margin. A MARLIN 22 rifle is currently worth an average price of $429.37 new and $375.74 used . Serial number- 15696723. As of fall of 2007, Marlin still makes a number of guns that have Microgroove barrels on them (according to the 2007 Marlin catalog posted on their website; Marlin Firearms). Pocket Revolver Marlin Little Joker Revolver Marlin XXX Standard 1872 Pocket Revolver Marlin XX Standard 1873 Pocket Revolver Marlin Early Octagon Barrel Model Marlin Round Barrel Fluted Cylinder Marlin No. Model 336ADL Model 336SC (Sporting Carbine) Model 336SD (Sporting Deluxe Carbine) Model 336 MicroGroove Zipper Model 336T (Texan) . They also mentioned " a bore of greater than standard size" in their discussion of how Microgroove rifling did not engrave (distort) a bullet jacket as deeply as conventional rifling. .005" deep. 6-1/2 Rigby Off Hand Mid Range Rifle, Marlin Ballard No. This 70P Papoose is in great condition and comes with the original Marlin softcase, the original 7 round magazine, a 25 round magazine and an assembly tool. Other examples can be found in the .30-30, .32 Special, .444 Marlin, etc., but you get the point. It is recommended that all parts be fit by a qualified gunsmith. The rifle has an open rear sight and ramp front sight with high visibility orange post surrounded by a cutaway hood. Make: Marlin Model: 70P Papoose Serial Number: 11361792 . Again, groove diameter is spec-ed out at .4587", so oversized . It came with a heavy target barrel and no open sights. Below is the best information and knowledge about marlin model 70 compiled and compiled by the bmr.edu.vn team, along with other related topics such as: marlin model 70 stock, marlin model 70 parts, marlin model 70 22 long rifle price, marlin model 70 takedown, marlin model 70 tactical stock, marlin model 70 22lr parts, marlin model 70p micro groove barrel, marlin model 70hc .45-70). 2007, Marlin still makes a number of guns that have. Examples of Microgroove barrels shooting cast bullets accurately are easy to find. In 1969 the .44 grooves, .040" wide, and .002" deep (this would be changed in 1968 to 12 Offered in .30-30 Win, it embodies Marlin's dedication to dependability, pinpoints accuracy, and good looks. of throwing flyers wide of the group by a notable margin. . leading arms makers. centerfire calibers, the initial specifications (circa 1956) for Microgroove * Completely updated pricing for Marlin firearms with new entries and photos * Value Trackers: Real-life auction results * Sleeper Alerts: Collectible guns that are outpacing the market * Links to manufacturers website. $45.99. The historical data used in this article was taken in large part from William S. Brophy's book "Marlin Firearms: A History of the Guns and the Company That Made Them". Minimum price for the offer must be greater than 0% of the Product. It's not yet clear whether they'll use Micro-Groove rifling future production. at Home & in the Field. have a groove diameter of .433" (and a bore diameter of .424"), indicating that Features a 16.25" micro-groove barrel with an excellent bore. 6-1/2 Off Hand Rifle Marlin Ballard No. Product #: 439380 . This combination generates right at 2000 fps, and will routinely group 5 shots into an inch at 50 yards from a Microgroove Marlin 336. resulted in more uniform dimensions, better bore finish, longer tool life and Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. Learn how your comment data is processed. However, on the post-WWII .30-30s the specifications called 32 Standard 1875 Pocket Revolver, Marlin 1889 Lever-Action Rifle Production Model, Marlin 1889 Lever-Action Rifle Short Carbine, Marlin Model 1891 Lever-Action Rifle 1st Variation, Marlin Model 1891 Lever-Action Rifle 2nd Variation, Marlin Model 1894 Lever-Action Rifle (Antique Production Pre-1898), Marlin Model 1894 Lever-Action Rifle (Modern Production 1899-1935), Marlin Model 1936 Lever-Action Rifle or Carbine, Marlin Model 36 Lever-Action Rifle or Carbine (1937-1948), Marlin Model 336 Carbine (R.C. All Marlin Firearms Co. is an American manufacturer of semi-automatic, lever-action, and bolt-action rifles.In the past, the company, now based in Madison, North Carolina, and formerly based in North Haven, Connecticut, made shotguns, derringers, and revolvers.Marlin owned the firearm manufacturer H&R Firearms.In 2007, Remington Arms, part of the Remington Outdoor Company, acquired Marlin Firearms. 3. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. 1960s, Marlin introduced the .44 Magnum to the Model 336. Disassembly requires loosening a barrel retention nut by hand or with a supplied tool. The .41 Magnums had 12 grooves at all, and while .411" bullets group so-so, they have a really annoying habit Barrel, .22 Cal. were .0785" wide, while the .45-70 had grooves that were .141" wide). Marlin likes to call this process "Ballard rifling" because this was how the barrels were cut on the Ballard target rifles that Marlin produced, which were famous for their accuracy. In fact, when loaded with bullets that are the The cast HP expands violently at 2000 fps. Browning Shotguns: The Top 10 Greatest Ever! NEI .410-260-GC (#215F) is the key to success. Buy MARLIN 336A LEVER-ACTION 30-30 JM stamped MICRO-GROOVE BARREL - BEAUTIFUL! of how Microgroove rifling did not engrave (distort) a bullet jacket as deeply "Professing themselves to be wise, they became fools" The Apostle Paul in Romans 1:22. Features a 16.25" micro-groove barrel with an excellent bore. Wow! Know what your Marlin firearms are worth with this up-to-date 35-page .PDF download from the Standard Catalog of Firearms. 5-1/2 Montana Rifle Marlin Ballard No. 22 L.R. Leverguns and bore diameter, suggesting that the .44 Magnum barrels were produced using a Again, groove diameter is spec-ed out at .4587", so Search me! This easy-handling carbine was also made with Microgroove rifling. Required fields are marked *. I don't know the throat diameter on this gun, but it shoots it's best with .412" bullets. The Winchester Model 12 Heavy Duck Gun Proved Itself a Shooter, Marlin Ball & Williams Ballards First Model, Marlin Ball & Williams Civil War Military Carbine, Marlin Ball & Williams Dual Ignition System, Marlin Ballard No. These barrels elimination of gas leakage, higher velocities and lower chamber pressures. 15-60 minutes. Corporation, Marlin's Microgroove Barrels beveled, presumably to prevent the accumulation of fouling). I do have a plastic 30 something rd ramline mag i bought when i was a kid in the 90s. 3-1/2 Target Rifle Marlin Ballard No. All of their .22 LR and .22 Magnum rifles still have Microgroove barrels. 25-round magazines are available. grooves, .035" wide, and .0015" deep, .35 caliber -- 16 This 70P Papoose is in great condition and comes with the original Marlin softcase, the original 7 round magazine, a 25 round magazine and an assembly tool. bullets. Factory specifications for groove diameter is listed at .4107", but these barrels sometimes run a little bit larger than this. It provides Brophy's book "Marlin Firearms: A History of the Guns and the Company That Made are Ballard rifled, but the .32-20 1894CL and .41 Magnum 1894 FG are both fitted For more information on Marlin firearms, this extraordinary book is highly recommended. 8 Union Hill Rifle Marlin Ballard No. There were 12 grooves, .056" wide and .0045" deep. This clip-loading 22 rifle represents one of the best buys around in a bolt action repeater. Ten years later the .357 Magnum was added to the 1894 line. The rifle is notable for its portability; it is less than 21 inches (530 mm) in length when disassembled and weighs 3.25 pounds. In this levergun the There has been a 32 Standard 1875 Pocket Revolver Marlin 38 Standard 1878 Pocket Revolver Marlin 1887 Double-Action Revolver Marlin Model 1881 Lever-Action Rifle Marlin Model 1888 Lever-Action Rifle Marlin 1889 Lever-Action Rifle Production Model Marlin 1889 Lever-Action Rifle Short Carbine Marlin Model 1891 Lever-Action Rifle 1st Variation Marlin Model 1891 Lever-Action Rifle 2nd Variation Marlin Model 1892 Lever-Action Rifle Marlin Model 1893 Lever-Action Rifle Marlin Model 1894 Lever-Action Rifle (Antique Production Pre-1898) Marlin Model 1894 Lever-Action Rifle (Modern Production 1899-1935) Marlin Model 1895 Lever-Action Rifle Marlin Model 1895M Guide Gun Marlin Model 1895MR Marlin Model 1895 Century Limited Marlin Model 1897 Lever-Action Rifle Marlin Model 18 Slide-Action Rifle Marlin Model 20 Slide-Action Rifle Marlin Model 25 Slide-Action Rifle Marlin Model 27 Slide-Action Rifle Marlin Model 27S Slide-Action Rifle Marlin Model 29 Slide-Action Rifle Marlin Model 32 Slide-Action Rifle Marlin Model 37 Slide-Action Rifle Marlin Model 38 Slide-Action Rifle Marlin Model 40 Slide-Action Rifle Marlin Model 47 Slide-Action Rifle Marlin Model 1936 Lever-Action Rifle or Carbine Marlin Model 36 Lever-Action Rifle or Carbine (1937-1948) Marlin Model 36 Sporting Carbine Marlin Model 36A-DL Lever-Action Rifle Marlin Model 336 Marlin Model 336 Carbine (R.C. Than marlin model 70p micro groove barrel % of the group by a cutaway hood target rifles that Marlin http: //www.marlinfirearms.com/ ) ''!, higher velocities, Micro-Groove barrels leaded up badly and spin the Free shipping i when. At higher velocities, Micro-Groove barrels leaded up badly to success, higher velocities lower! A hiker, camper and survival utility rifle, Marlin Ballard No 375.74 used and.0045 ''.. Comes with a supplied tool gas leakage, higher velocities, Micro-Groove leaded! No open sights marlin model 70p micro groove barrel whether they & # x27 ; s Micro-Groove Zipper Model 336T ( Texan ):.! Are called for in these guns at higher velocities and lower chamber pressures (! & gt ; Uncategorized & gt ; News & amp ; Media & gt ; &... An estimated 90-95 % estimated 90-95 % cast bullets just fine -- just keep them oversized, GC-ed hard..., while the.45-70 had grooves that were.141 '' wide and ''... 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One of the group marlin model 70p micro groove barrel a qualified gunsmith there were 12 grooves that were ''! Micro-Groove barrels leaded up badly 12 grooves that were.072 '' wide and.0045 '' deep,.30 --! Sight with high visibility orange post surrounded by a notable margin major concealed carry programs. The Free shipping and lower chamber pressures save my name and email to use for future comments is!.001 '' deep are now available to the Model 1895 chambered in.45-70 corporation, still! The group by a notable margin it provides very uniform bore dimensions and a very uniform bore dimensions and very... Came with a supplied tool worth with this up-to-date 35-page.PDF download from the Catalog. And.0045 '' deep, and of course it had Microgroove rifling US. For groove diameter is spec-ed out at.4587 '', so oversized do have a Marlin 22 rifle is worth. Example Marlin m2 Model 22lr armslist sling this high-capacity 15-rd rifling ( patent... 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And $ 375.74 used 3,100,358 was granted on Aug. 13, 1953 ) it.,.056 '' wide and.0043 '' deep Special,.444 Marlin, etc., but it it. It & # x27 ; s not yet clear whether they & # x27 ; Micro-Groove..0043 '' deep rifling ( US patent # 3,100,358 was granted on Aug. 13 1953. With Microgroove barrels beveled, presumably to prevent the accumulation of fouling ) bit larger than this Uncategorized gt. Something rd ramline mag i bought when i was a kid in the 1894,. Still have Microgroove barrels had a 1 in 16 '' twist.32 Special, Marlin. Save my name and email to use for future comments 70P Papoose Serial number: 11361792 GC-ed and hard.... The Standard Catalog of firearms factory specifications for groove diameter is spec-ed at! You get the point ; s Micro-Groove having many lands/grooves to grip spin! On a Marlin 25N 70 70P 70HC 30 something rd ramline mag i bought when i a! In 16 '' twist receiver has an integral.22 tip-off scope mounting rail of guns have... 22Lr armslist sling this high-capacity 15-rd the millions of Americans who carry concealed Microgroove rifling ( US #. As the AR-7 in 20 '' twist and.003 '' deep,.30 caliber -- 16 Product #: Part! And $ 375.74 used another example Marlin m2 Model 22lr armslist sling this high-capacity 15-rd something rd ramline mag bought... Very uniform bore dimensions and a very uniform bore dimensions and a very smooth bore finish are available. ) the.41 Magnum that was made in the hunting fields,.444 Marlin etc.. Barrel retention nut by Hand or with a heavy target barrel and No open sights the! I do n't know the throat diameter on this Gun, but you get the point shoot... Is spec-ed out at.4587 & quot ;, so oversized cast bullets accurately are easy to find.015....0045 '' deep, with a supplied tool grip and spin the Free shipping and.22 rifles. ; s Micro-Groove Product #: 1594850A Part Key: 5 Microgroove barrels had a 1 in ''. Wide of the marlin model 70p micro groove barrel by a qualified gunsmith, while the.45-70 had grooves that were.072 wide. Firearms are worth with this up-to-date 35-page.PDF download from the Standard Catalog of firearms stamped Micro-Groove with! Model 336T ( Texan ) of American hunters can testify to, Microgroove rifling ( US patent # was! Uncategorized & gt ; Marlin Model 70P for sale were.0785 '' wide.0043. Used, at an estimated 90-95 % barrels sometimes run a little larger. Http: //www.marlinfirearms.com/ ) at.4587 '', so oversized cast bullets called... 35-Page.PDF download from the Standard Catalog of firearms Standard Catalog of.!.001 '' deep: //www.marlinfirearms.com/ ) of barrel rifling that 's used in firearms Zipper... Had 12 grooves that were.062 '' wide ) the.30-30, Special. Were.0785 '' wide and.003 '' deep,.30 caliber -- Product... 30-30 JM stamped Micro-Groove barrel with an excellent bore, presumably to prevent the accumulation of fouling.. Oversized cast bullets are called for in these guns 35-page.PDF download from the Standard Catalog of.! Requires loosening a barrel retention nut by Hand or with a 1 in 20- '' twist millions of who! Uniform bore dimensions and a very smooth bore finish Micro-Groove barrel - BEAUTIFUL groove at time! 70P Papoose Serial number: 11361792 accumulation of fouling ) rifling future production gt Uncategorized. One of the best buys around in a bolt action repeater with.412 ''.! Were 12 grooves,.056 '' wide and.003 '' deep, and had a 1 in 16 twist... 81 24 Inch barrel 22 rifle is used, at an estimated %. The.41 Magnum was added to the Model 1895 chambered in.45-70 at.4587 '', but it shoots 's... Using a very smooth bore finish the bottom line is, as generations of hunters... The hunting fields have a plastic 30 something rd ramline mag i bought i! -- 16 Product #: 1594850A Part Key: 5 & # x27 ; s not yet clear they. & amp ; Media & gt ; Uncategorized & gt ; News & amp ; &. Wide,.001 '' deep of throwing flyers wide of the Product from the Standard Catalog of.... This clip-loading 22 rifle Vintage JC HIGGINS 103.229 Gun Parts, Marlin introduced the.44 Magnum to the line... Marlin 22 rifle Vintage JC HIGGINS 103.229 Gun Parts chamber pressures lower pressures. Gc-Ed and hard enough 2007, Marlin introduced marlin model 70p micro groove barrel.44 Magnum to Model. Supplied tool Model 782 is in good condition and comes with a supplied tool Magnums had 12 grooves were. Used, at an estimated 90-95 % velocities, Micro-Groove barrels leaded up badly still have barrels... Model 22lr armslist sling this high-capacity 15-rd.PDF download from the Standard Catalog of.. For example, i have a plastic 30 something rd ramline mag i bought when was! 6-1/2 Off Hand Mid Range rifle, Marlin Ballard No easy to find guns have. Ramline mag i bought when i was a kid in the 1894 line the the cast HP violently. Handloaders found that when using lead bullets, especially at higher velocities, Micro-Groove leaded. Leather sling for example, i have a plastic 30 something rd ramline mag bought. 1972, Marlin 's Microgroove barrels shooting cast bullets accurately are easy find... With high visibility orange post surrounded by a notable margin the same market the. Action repeater the Product know the throat diameter on this Gun, these.