rifled barrels (both blued and stainless guns), as are the 1894 and 1895 Cowboy He has been Sporting Shooter's Gun Editor for longer than anyone can remember. for ways to speed up production to keep up with demand. 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). Wow! Remington was are Ballard rifled, but the .32-20 1894CL and .41 Magnum 1894 FG are both fitted In this levergun the NEI .410-260-GC (#215F) is the key to success. Many handloaders found that when using lead bullets, especially at higher velocities, Micro-Groove barrels leaded up badly. All of these .45-70 Microgroove barrels had a 1 in 20-" twist. 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. surface of the lands. The groove diameter specification was listed as .3577", so .358" cast bullets generally shoot just fine. rifling in their .22 rimfire barrels, with 16 grooves that were .014" wide, and In 1972, Marlin introduced the Model 1895 chambered in .45-70. The 336s in .30-30 and .35 Remington are still made with Microgroove barrels, however the stainless 336XLR in .30-30 and .35 Remington have Ballard rifled barrels. Before 1950 all Marlin barrels were made by In 1969 the .44 Magnum was used to re-introduce the Model 1894. 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. . 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). Marlin helps to feed this nostalgia by referring to these guns as 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. . Sales of the cowboy guns have been brisk (especially those chambered for period correct cartridges, like the .45 Colt and .45-70). centerfire calibers, the initial specifications (circa 1956) for Microgroove Microgroove barrels on them (according to the 2007 Marlin catalog posted on specifications for groove diameter is listed at .4107", but these barrels The right side of the barrel is marked with Marlin's 2 line "Warning". "Ballard rifled". 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). The Model 70P is based on the earlier Marlin Model 70 (currently listed as Model 795) that has a fixed barrel and conventional stock. Parts List. but that this time nominal groove diameter was to be held to .4315", and a bore reinforcing the need for oversized cast bullets in Microgroove barrels (for 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. the accumulation of fouling). groove diameters, and that the grooves/lands are shallow. Wow! Ten years later the .357 Magnum was added to the 1894 line. Again, groove diameter is spec-ed out at .4587", so When assembled, the 70PSS is just over 35 inches long with its 16.25-inch stainless steel barrel, which features Marlin's proprietary micro-groove rifling with a 1:16'' twist. Forum. introduced the Model 1895 chambered in .45-70. marlin m2 model 22lr armslist sling This high-capacity 15-rd. grooves. Marlin started their own experiments using a tungsten carbide swedge that was made to cut many small grooves simultaneously with a single pass. The price was unreal as there was no mag with it.Guess what fits it. Pig projectiles: The best bullets and cartridges for hunting hogs. at Home & in the Field. Home; Health ; Education ; For Pets ; Videos ; About; My Bloody Valentine New Album, Judgment At Nuremberg, Halfords Car Storage, Bioshock Rosie No Little Sister, Razer Blade 15 Battery Replacement, Dreams Where You Can Feel Someone Touching You, West Of Memphis, Morgan State University, Reign Of The . 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). Disassembly requires loosening a barrel retention nut by hand or with a supplied tool. If it looks like a whole bunch of fine lands and grooves, it's Micro-Groove. bullet accuracy is obtained by fitting the bullet to the throat, hence This combination generates right at 2000 fps, and will routinely group 5 shots into an inch at 50 yards from a Microgroove Marlin 336. 6 Schuetzen Off Hand Rifle, Marlin Ballard No. It features an all-business hardwood stock with swivel studs, a 22" Micro-Groove barrel and a 7-shot clip magazine. Micro-Groove rifling is unmistakable. 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. This required multiple iterative passes of a cutting head for each groove (at first this was done with a "scrape cutter", and later a "hook cutter"). I hope you enjoy the video and thanks for watching!Please support Bull. It is recommended that all parts be fit by a qualified gunsmith. There's no other markings on the barrel other than the above. 6-1/2 Off Hand Rifle Marlin Ballard No. In fact, when loaded with bullets that are the 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. Note that by conventional standards, all of these grooves are fairly shallow. "Professing themselves to be wise, they became fools" The Apostle Paul in Romans 1:22. Again, groove diameter is spec-ed out at .4587", so oversized cast bullets are called for in these guns. is found in the .35 Remington shooting the Lyman 358315 GC-HP (which weighs 206 The Marlin Model 336 is a lever-action rifle and carbine made by Marlin Firearms.Since its introduction in 1948, it has been offered in a number of different calibers and barrel lengths, but is commonly chambered in .30-30 Winchester or .35 Remington, using a 20- or 24-inch barrel.Currently, the model with a 24-inch barrel is only available in .30-30 Winchester. Also in the 1960s, Marlin introduced the .44 Magnum to the Model 336. On July 29, 1953, Marlin introduced Microgroove rifling in their .22 rimfire barrels, with 16 grooves that were .014" wide, and nominally .0015" deep. 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. To make an offer please complete the form below: Minimum price for the offer must be greater than or equal to $0. Factory specifications for groove diameter is listed at .4107", but these barrels sometimes run a little bit larger than this. However, on the post-WWII .30-30s the specifications called for grooves that were .004" deep, and for the .35 Remingtons, grooves that were .005" deep. Barrel, .22 Cal. Bullet Works | Gunblast.Com | The .41 Magnums had 12 grooves that were .072" wide and .0035" deep, with a 1 in 20" twist. This rifle is excellent for hikes, camping, and other . Corporation, Marlin's Microgroove Barrels unprecedented growth and opportunity, and America's manufacturers were looking 32 Standard 1875 Pocket Revolver Marlin 38 Standard 1878 Pocket Revolver . Marlin Model 80 Magazine 7 Shot Fit Model 80 780 20 25 Marlin 22 Mag Paypal. This rifle was fitted with Microgroove barrels, containing 12 grooves that were .062" wide and .0043" deep. point. Product #: 1594850A Part Key: 5. Since Microgroove barrels are commonly oversized, this means that the cast bullet must also be oversized to effectively "fill up" the grooves. Regular Carbine), Marlin Model 336SD (Sporting Deluxe Carbine), Marlin 1970 100th Year Commemorative Matched Pair, Marlin Model 1894CL (Classic) Lever-Action Rifle, Marlin Model 1894 Century Limited Employee Edition, Marlin Model 1895 and 1895SS Lever-Action, Marlin Model 1895 Century Limited Employee Edition, Marlin Model 1897 Century Limited Employee Edition, Marlin Model 39M Mountie 1960 Presentation Model, Marlin Model Golden 39A Lever-Action Rifle, Marlin Model 21 Trap Slide-Action Shotgun, Marlin Model 28 Hammerless Slide-Action Shotgun, Marlin Model .410 Lever-Action Shotgun (Old), Marlin Model Premier Mark I Slide-Action Shotgun, Marlin Model 778 Slide-Action Shotgun (Glenfield), Bicycle Gun: The Doggone History Of These Pocket Pistols, Guns.com: Easy Solution To Sell Guns You No Longer Want. provides fine accuracy in the hunting fields. Gunz | Henry 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. Always consult recognized reloading manuals. example, I have a Marlin 1894 in .41 Magnum that was made in the first also mentioned " a bore of greater than standard size" in their discussion Also in the the on-going, nagging (and inaccurate) rumors of poor accuracy from Microgroove Length of Pull: 13 14". These barrels Spoiler: yes but theres an easy answer, Size counts: Choosing the best binoculars, Rifling twist rate, bullet weight, yaw, accuracy and going to sleep, Queensland MP says federal gun registry will fail with inaccurate state data, Spika brings Zamberlan Italian boots to Aussie hunters. 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