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For example, factory and aftermarket receivers using the Remington 700 footprint are produced with various types of action threads, all with a 26.99 mm (1 + 1 ⁄ 16 in) diameter, but with a pitch of either a 1.588 mm (16 TPI, Remington standard), 1.411 mm (18 TPI) or 1.270 mm (20 TPI, Savage standard).
The .45-70 (11.6x53mmR), also known as the .45-70 Government, .45-70 Springfield, and .45-2 1 ⁄ 10" Sharps, is a .45 caliber rifle cartridge originally holding 70 grains of black powder that was developed at the U.S. Army's Springfield Armory for use in the Springfield Model 1873.
All are chambered for the .45/70 caliber except for the "M" (.450) Introduced in the 1970s, based on the Model 336 and named after the original 1895. Marlin Model 1895 Square bolt. The original rifle introduced in 1895, based on the 1893 action but scaled up for larger cartridges such as 45-70 and 45-90 to replace the Model 1881.
Use of such loadings in older .45-70 firearms is dangerous and should not be attempted; for that reason, Marlin introduced the .450 Marlin, a belted version of the .45-70 cartridge that will not chamber in older .45-70 rifles. However, many .45-70 Model 1895 owners chose to use the traditional .45-70 loads for deer-sized game with the option of ...
According to the US Army Ordnance Department tests, the 45-70-405 was loaded to 19,000 psi, [4] while the 45-70-500 was loaded to 25,000 psi [2] The average accuracy of the Springfield Model 1873 was a circle with an average radius of 1.7 inches at 100 yards, corresponding to an ~3.4 MOA.
The .450 Marlin is a firearms cartridge designed as a modernized equivalent to the .45-70 cartridge. It was designed by a joint team of Marlin and Hornady engineers headed by Hornady's Mitch Mittelstaedt, [ 4 ] and was released in 2000, with cartridges manufactured by Hornady and rifles manufactured by Marlin, mainly the Model 1895M levergun .
The last and most successful maker was J.M. Marlin Firearms Co., who built more models than any predecessor (1870–1890). The Ballard rifle had over 20 variants during its 29-year lifespan. [ 2 ] The No. 1 Hunter's Model was first introduced in 1875 for the .44 rimfire caliber. [ 3 ]
Pitch 1 - Pitch 2 = Pitch eff. For example, an M5×0.80 thread paired with an M4×0.70 thread will produce a differential motion of 0.1 mm, or 100 μm per revolution. Mixing metric and imperial threads can result in finer differentials while still using standard threads, they can be calculated in the same way as a metric differential but the ...