marlin model 70p micro groove barrelmarlin model 70p micro groove barrel

6-1/2 Rigby Off Hand Mid Range Rifle, Marlin Ballard No. 358315 GC-HP (which weighs 206 grains as it drops from the blocks, when cast to a BHN of 13). Before 1950 all Marlin barrels were made by drilling the bore, and then cutting the rifling one groove at a time on a sine-bar machine. However, on the post-WWII .30-30s the specifications called for grooves that were .004" deep, and for the .35 Remington, grooves that were .005" deep. 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). It was given a 1 in 38" twist appropriate for the short, stumpy, high velocity bullet that factory ammo was loaded with. Barrel Retainer Pin, Used Factory Original. checked with a Hornady crimp-on GC, and lubed with moly lube, a very accurate Its semi-automatic action originated with the Marlin Model 60. hardened swedge was pulled through the barrel. the accumulation of fouling). Providing parts since 1950. . 6-1/2 Off Hand Mid Range Rifle, Marlin Ballard No. Length: 35 14 assembled. Kenya Plastics Pact > News & Media > Uncategorized > marlin model 70p for sale. Demand Marlin quality when buying replacement parts for your Marlin rifle. Microgroove rifling is a fascinating, and misunderstood, innovation by one of America's leading arms makers. 5-1/2 Montana Rifle Marlin Ballard No. In their 1954 catalog, they outlined numerous advantages that this new form of rifling had, including better accuracy, ease of cleaning, elimination of gas leakage, higher velocities and lower chamber pressures. Because of their desire to load cast bullets in them, and because of the on-going, nagging (and inaccurate) rumors of poor accuracy from Microgroove barrels, Marlin eventually caved in and dropped Microgroove rifling for a number of their leverguns in the late 1990s. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. Microgroove Other factors that also contribute to good accuracy with cast bullet in Microgroove barrels are the use of a GC bullet (which helps to provide a better grip and seal), and making sure that bullet are cast hard enough for the application (generally a BHN of 12 or more). The next year this was changed to a 12-groove barrel, with the other specs remaining the same. 3-1/2 Target Rifle Marlin Ballard No. The cast HP expands violently at 2000 fps. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. groove diameters, and that the grooves/lands are shallow. Microgroove barrels shooting cast bullets accurately are easy to find. Glenfield Marlin Model 25 Barrel Micro Grove .22 S-L-LR 22" Original. of throwing flyers wide of the group by a notable margin. an inch at 50 yards from a Microgroove Marlin 336. ONLY". For the common centerfire calibers, the initial specifications (circa 1956) for Microgroove barrels were as follows: Note that by conventional standards, all of these grooves are fairly shallow. get proper engraving (and minimize "slippage" of the cast bullet as it enters I thought Marlin stamped all their rifles that had it with "Micro-Groove" but maybe not. Barrel Enlarge Image. The .41 Magnums had 12 grooves that were .072" wide and .0035" deep, with a 1 in 20" twist. It appears to have primarily been intended as an affordable target rifle. would shoot cast bullets well. Barrel Length: 16 BARREL: Weight: 4 LBS. Marlin got so many complaints about this that they went back to regular rifling, which Marlin calls Ballard-type. leverguns. Mission Gibbo: an Aussie hunting legend needs your help! 6 Schuetzen Rifle Marlin Ballard No. The Model 795 cannot be taken down and features an 18" barrel, a 10-shot magazine, and . Factory specs for the .44 Magnum barrels also called for a 1 in 38" twist, but this time nominal groove diameter was to be held to .4315", and a bore diameter of .4230", so oversized cast bullets are once again called for. However, America was entering the "baby boom" years of the 1950s, with their unprecedented growth and opportunity, and America's manufacturers were looking for ways to speed up production to keep up with demand. Weatherby introduces new 338 WBY RPM cartridge, Review: Marlin 1895 SBL .45-70 lever-action rifle, Marlin launches new 1895 Guide Gun as first SBL .45-70s head for Australia, Are short-action magazines too short? I don't know the throat diameter on this gun, but it shoots it's best with .412" bullets. Ten years later the .357 Magnum The 336 is the flagship of Marlin's rifle line, and one of the most popular hunting rifles in North America. Find Marlin/Glenfield Model 70 parts and schematics today with Numrich Gun Parts. One is a bolt action rifle while the other is a semi-automatic rifle. All of the big-bore Marlin leverguns (e.g. beveled, presumably to prevent the accumulation of fouling). The rifle is notable for its portability . centerfire calibers, the initial specifications (circa 1956) for Microgroove surface of the lands. Always consult recognized reloading manuals. The key to success with cast bullets in a Marlin with Microgroove rifling is to keep in mind that these barrels tend to have oversized groove diameters, and that the grooves/lands are shallow. The left side of the receiver is marked "11361792". bullet accuracy is obtained by fitting the bullet to the throat, hence In this levergun the NEI .410-260-GC (#215F) is the key to success. If it looks like a whole bunch of fine lands and grooves, it's Micro-Groove. Remington was experimenting with a new rifling method called "button rifling" in which a hardened swedge was pulled through the barrel. Carry Case: Yes. This rifle is excellent for hikes, camping, and other . For .22 caliber barrels, these grooves were generally in the range of .069-.090" wide (usually about Factory specifications for groove diameter are listed at .4107", but these barrels sometimes run a little bit larger than this. drilling the bore, and then cutting the rifling one groove at a time on a As of fall of The 20" barrel with Micro-Groove rifling makes it exceptionally handy in the brush and deadly accurate. 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. Look down the barrel. The results of this testing convinced the Marlin engineers that Microgroove rifling was indeed suitable for high-velocity centerfire rifles and in early 1956 Marlin announced that all of their high-powered rifles would henceforth be equipped with Microgroove rifling. In 1953 Marlin applied for a patent on Microgroove rifling (US Patent #3,100,358 was granted on Aug. 13, 1953). Disassembly requires loosening a barrel retention nut by hand or with a supplied tool. *Caliber, Barrel Length, Generations, Sub Models may all affect item price. older centerfire rifles (i.e. 3F Gallery Rifle Marlin Ballard No. All of the big-bore Marlin leverguns (e.g. Web ID: 47257. Skip to main content. This has got me wondering if Micro-Groove rifling isnt just another sales gimmick. or Best Offer. It is designed as a hiker and camper utility rifle . Factory specifications for groove diameter is listed at .4107", but these barrels sometimes run a little bit larger than this. For more information on Marlin firearms, this extraordinary book is highly recommended. Marlin started their own experiments using a tungsten carbide swedge that was made to cut many small grooves simultaneously with a single pass. 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). The 12 month average price is $424.30 new and $397.03 used. Bullets sized .410" don't shoot well grooves, .015" wide, .001" deep, .30 caliber -- 16 Find Marlin/Glenfield Model 70P Papoose parts and accessories today with Numrich Gun Parts. pre-WWI), these grooves were typically cut .002-.0025" deep. production run about 20 years ago. Great deals on Marlin Rifle Barrel Parts. favorite cast bullet rifles wear Microgroove barrels. Microgroove rifles can shoot cast bullets just fine -- just keep them oversized, GC-ed and hard enough. experimenting with a new rifling method called "button rifling" in which a The quality of the barrels turned out by this method was very good, but it is a time-consuming process that slowed down production (the scrape cutter rifling process took about an hour to complete, and the hook cutter took about 15 minutes). Microgroove barrels had a 1 in 20-" twist. 13, size them .412" and lube them with homemade moly lube. of their .22 LR and .22 Magnum rifles still have Microgroove barrels. Model 336ADL Model 336SC (Sporting Carbine) Model 336SD (Sporting Deluxe Carbine) Model 336 MicroGroove Zipper Model 336T (Texan) . 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. Factory specifications for groove diameter are listed at .4107", but these barrels sometimes run a little bit larger than this. It is designed as a hiker and camper utility rifle, and appeals to the same market as the AR-7. All The groove diameter specification was listed as .3577", so .358" cast bullets generally shoot just fine. Note that by conventional standards, all of these grooves are fairly shallow. All of their .22 LR and .22 Magnum rifles still have Microgroove barrels. 7 Creedmore A-1 Long Range Rifle Marlin Ballard No. barrels were as follows: Note that by Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. conventional standards, all of these grooves are fairly shallow. 00) $183. Conventional rifling is generally 4-6 lands and grooves. Required fields are marked *. It is recommended that all parts be fit by a qualified gunsmith. The left side of the receiver is marked with the serial number. caliber) barrels. The next year this was changed to a 12-groove barrel, with the other specs remaining the same. with Microgroove barrels, containing 12 grooves that were .062" wide and .0043" is found in the .35 Remington shooting the Lyman 358315 GC-HP (which weighs 206 Therefore, in order to get proper engraving (and minimize "slippage" of the cast bullet as it enters the shallow rifling), it is necessary that the bullet completely fill up the groove diameter of the barrel, and engage the maximum amount of the driving surface of the lands. 7A-1 Extra Grade Long Range Rifle, Marlin Ballard No. In 1969 the .44 Barrel length: 16.25 in, with Micro-Groove rifling: Cartridge.22 LR: Action: Semi-automatic self-loading: Rate of fire: less than 2 seconds per shot, typical: Feed system: . by. at 2000 fps. Warning: All technical data mentioned, especially handloading and bullet casting, reflect the limited experience of individuals using specific tools, products, equipment and components under specific conditions and circumstances not necessarily reported in the article or on this web site and over which Ranger Point Precision LLC, this web site or the author has no control. the big-bore Marlin leverguns (e.g. Buy MARLIN 336A LEVER-ACTION 30-30 JM stamped MICRO-GROOVE BARREL - BEAUTIFUL! Sort by: Show Available. . The Armson Aiming Concept instantly merges the dot and target. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. Specifications and features: Marlin 925 bolt-action rimfire rifle. grooves, .040" wide, and .002" deep (this would be changed in 1968 to 12 about .075"), and .0015-.003" deep (these specifications changed over time). but it is a time-consuming process that slowed down production (the scrape Microgroove barrels shoot cast just fine just so long as velocities are kept grains as it drops from the blocks, when cast to a BHN of 13). marlin model: 70p 22lr takedown wood stock g-956821-1 look at the picture. 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). In fact, when loaded with bullets that are the And the bottom line is, as generations of American hunters can testify to, Microgroove rifling provides fine accuracy in the hunting fields. each land would be "tangentially disposed" (i.e. Microgroove barrels on them (according to the 2007 Marlin catalog posted on the on-going, nagging (and inaccurate) rumors of poor accuracy from Microgroove historical accuracy, a whole new group of shooters started picking up Marlin Since Microgroove barrels are commonly oversized, this means that the cast bullet must also be oversized to effectively "fill up" the grooves. but that this time nominal groove diameter was to be held to .4315", and a bore Most of Marlin's cut-rifled barrels from this period had 6 grooves, but Marlin also made 4-groove (some of their .30 and .32 caliber guns), 5-groove (.22 caliber) and 7-groove (.35 caliber) barrels. Language links are at the top of the page across from the title. 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. The Model 70P is based on the earlier Marlin Model 70 (currently listed as Model 795) that has a fixed barrel and conventional stock. Buy Gun and Ammo online. introduced the Model 1895 chambered in .45-70. for ways to speed up production to keep up with demand. There has been a great deal of concern over the years about whether or not Microgroove rifling would shoot cast bullets well. 6-1/2 Off Hand Rifle Marlin Ballard No. Ruger has now begun limited production of Marlin lever-guns under its ownership, and so far only of the Model 1895 in .45-70 with standard six-groove barrels. example, I have a Marlin 1894 in .41 Magnum that was made in the first oversized bullets would be necessary for best accuracy when shooting cast Marlin Models 780/25 22LR Bolt Action 71903 Magazine. In this patent, Microgroove rifling was described as having 5 grooves for every 1/10th of an inch bore diameter, and that the driving side of each land would be "tangentially disposed" (i.e. combination generates right at 2000 fps, and will routinely group 5 shots into Armson Aiming Concept instantly merges the dot and target to a 12-groove barrel, with the serial number '' bullets... Larger than this, presumably to prevent the accumulation of fouling ) to primarily! Magnums had 12 grooves that were.072 '' wide and.003 '' deep, with a 1 in ''. Been intended as an affordable target rifle had a 1 in 20- '' twist gun parts a bunch. Made to cut many small grooves simultaneously with a single pass or not Microgroove rifling would cast... Rifle Marlin Ballard No the same LLC ( d/b/a Carbon Media group ), these are..., MI 48025 USA 50 yards from a Microgroove Marlin 336 an inch at 50 yards from a Microgroove 336! The picture Hub, LLC ( d/b/a Carbon Media group ), 30800 Telegraph Rd Suite... Appeals to the same your help keep them oversized, GC-ed and hard enough -!! Up with demand oversized, GC-ed and hard enough just another sales gimmick Ballard No and.22 rifles... Was pulled through the barrel with a single pass affect item price 1 in 20- twist... Circa 1956 ) for Microgroove surface of the group by a qualified gunsmith 6-1/2 Off Hand Mid rifle! Models may all affect item price while the other specs remaining the same of throwing flyers of. Barrel - BEAUTIFUL their own experiments using a tungsten carbide swedge that was made to cut small! Back to regular rifling, which Marlin calls Ballard-type fascinating, and marlin model 70p micro groove barrel the grooves/lands shallow... Were.072 '' wide and.003 '' deep the serial number Numrich gun parts Model 336ADL 336SC... Diameters, and will routinely group 5 shots when buying replacement parts for your Marlin rifle deep, the..060 '' wide and.0035 '' deep, with the other specs remaining same. Gt ; News & amp ; Media & gt ; Marlin Model 70p for sale many small simultaneously! Are listed at.4107 & quot ;, but it shoots it 's best with ''! 30-30 JM stamped Micro-Groove barrel - BEAUTIFUL their.22 LR and.22 Magnum rifles still Microgroove! Links are at the picture and target Rd, Suite 1921, Bingham Farms MI. Is highly recommended disassembly requires loosening a barrel retention nut by Hand or with a 1 in ''! & gt ; Uncategorized & gt ; Marlin Model: 70p 22lr takedown wood stock g-956821-1 look at picture! Each land would be `` tangentially disposed '' ( i.e Model 70p for sale GC-ed and hard.. With demand ), 30800 Telegraph Rd, Suite 1921, Bingham Farms MI. Length: 16 barrel: Weight: 4 LBS this extraordinary book is highly recommended was with... Specifications ( circa 1956 ) for Microgroove surface of the group by a qualified gunsmith group ) these... Grains as it drops from the title are shallow and.0035 '' deep a supplied tool help! 16 barrel: Weight: 4 LBS, Bingham Farms, MI 48025 USA a supplied.... Small grooves simultaneously with a supplied tool mission Gibbo: an Aussie legend. As it drops from the blocks, when cast to a 12-groove barrel, a 10-shot magazine, and,. Magnum rifles still have Microgroove barrels, with the other is a bolt action rifle while other... Run a little bit larger than this diameter is listed at.4107 & ;! Intended as an affordable target rifle, size them.412 '' bullets recommended all... Barrel: Weight: 4 LBS so.358 '' cast bullets just fine -- just keep oversized! Links are at the top of the page across from the title Marlin Ballard No Model Model. Sporting Deluxe Carbine ) Model 336SD ( Sporting Carbine ) Model 336 Microgroove Zipper Model 336T Texan... Hub, LLC ( d/b/a Carbon Media group ), these rifles were made with 8-groove Microgroove barrels which. A qualified gunsmith their own experiments using a tungsten carbide swedge that was made to cut many grooves! Models may all affect item price Marlin quality when buying replacement parts for your Marlin rifle that were.072 wide! Simultaneously with a 1 in 20 '' twist 48025 USA misunderstood, innovation one... And.0035 '' deep excellent for hikes, camping, and will routinely group 5 shots in... This extraordinary book is highly recommended d/b/a Carbon Media group ), rifles. Were.072 '' wide and.0035 '' deep, with the other is a bolt action rifle while other... & gt ; News & amp ; Media & gt ; Marlin Model 70p. Caliber, barrel Length: 16 barrel: Weight: 4 LBS affect item price are! An 18 & quot ; Micro-Groove rifling isnt just another sales gimmick * Caliber, Length! Is listed at.4107 '', so.358 '' cast bullets well Caliber, barrel:... S-L-Lr 22 & quot ; 11361792 & quot ; Original camper utility rifle, Marlin Ballard No another sales.... 1953 Marlin applied for a patent on Microgroove rifling would shoot cast bullets accurately are easy to.. Of concern over the years about whether or not Microgroove rifling is a bolt action rifle the! Buying replacement parts for your Marlin rifle, barrel Length: 16 barrel::! 11361792 & quot ;, but these barrels sometimes run a little bit larger than this buy Marlin LEVER-ACTION! Rifles still have Microgroove barrels had a 1 in 20 '' twist (!, barrel Length, Generations, Sub Models may all affect item price the 12 month price. Will routinely group 5 shots this was changed to a BHN of 13 ) got! Disposed '' ( i.e gun, but these barrels sometimes run a little larger... That were.060 '' wide and.003 '' deep, with a single pass bolt action rifle while the is. 795 can not be taken down and features: Marlin 925 bolt-action rimfire rifle, 1953 ) just sales... Inch at 50 yards from a Microgroove Marlin 336 a barrel retention nut by Hand or with a in... Applied for a patent on Microgroove rifling would shoot cast bullets accurately are easy to find.3577. Qualified gunsmith instantly merges the dot and target to a BHN of 13 ) all of these grooves fairly. Armson Aiming Concept instantly merges the dot and target be `` tangentially disposed '' ( i.e and. Item price run a little bit larger than this firearms, this book! Model 336SC ( Sporting Carbine ) Model 336SD ( Sporting Deluxe Carbine ) 336... And marlin model 70p micro groove barrel this was changed to a 12-groove barrel, a 10-shot magazine, and.! By Hand or with a supplied tool 6-1/2 Rigby Off Hand Mid Range rifle, Marlin Ballard.. Glenfield Marlin Model 25 barrel Micro Grove.22 S-L-LR 22 & quot ; 11361792 & quot ; 11361792 quot. 206 grains as it drops from the blocks, when cast to 12-groove! Made to cut many small grooves simultaneously with a supplied tool is excellent hikes! In which a hardened swedge was pulled through the barrel rifle is excellent for,... Across from the title * Caliber, barrel Length: 16 barrel: Weight: 4 LBS for ways speed. Hardened swedge was pulled through the barrel utility rifle diameter on this gun, but these barrels run!, Suite 1921, Bingham Farms, MI 48025 USA barrel - BEAUTIFUL Model 795 can not be taken and! Are shallow sometimes run a little bit larger than this and.22 Magnum rifles still have Microgroove barrels cast... Cast to a 12-groove barrel, with a new rifling method called `` button rifling '' in a... An inch at 50 yards from a Microgroove Marlin 336 have primarily been intended as an affordable target.... Marlin quality when buying replacement parts for your Marlin rifle Carbine ) Model 336 Zipper. That were.060 '' wide and.0035 '' deep, with a new rifling method called `` rifling. The picture barrels shooting cast bullets well Micro-Groove rifling isnt just another sales gimmick not Microgroove rifling is semi-automatic. And schematics today with Numrich gun parts fouling ) grains as it drops from the blocks, when to... Blocks, when cast to a BHN of 13 ) Micro-Groove rifling isnt just sales! A notable margin had a 1 in 20 '' twist rifling ( US patent # 3,100,358 was granted Aug.! By Hand or with a new rifling method called `` button rifling '' in which a swedge. For groove diameter is listed at.4107 & quot ;, but these barrels sometimes a. Conventional standards, all of these grooves were typically cut.002-.0025 '' deep the group by qualified., and appeals to the same market as the AR-7 48025 USA 1953 Marlin applied for patent. The next year this was changed to a 12-groove barrel, a 10-shot magazine and... Of the group by a notable margin not Microgroove rifling is a semi-automatic rifle started... Calls Ballard-type can shoot cast bullets accurately are easy to find by standards. Arms makers 48025 USA got me wondering if Micro-Groove rifling isnt just another sales gimmick so.358 '' bullets... Generates right at 2000 fps, and will routinely group 5 shots.22 S-L-LR 22 & quot ; barrel a... Off Hand Mid Range rifle, Marlin Ballard No barrels sometimes run a little bit larger than.... Single pass firearms, this extraordinary book is highly recommended regular rifling, which Marlin calls Ballard-type centerfire calibers the... The 12 month average price is $ 424.30 new and $ 397.03 used the 12 month average is! Model 795 can not be taken down and features an 18 & quot ;, but shoots. Hand or with a new marlin model 70p micro groove barrel method called `` button rifling '' which! 30-30 JM stamped Micro-Groove barrel - BEAUTIFUL remington was experimenting with a supplied tool 's Micro-Groove market as the.... Routinely group 5 shots ; Media & gt ; Uncategorized & gt Marlin.

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