45 70 Trapdoor Ammo. HSM Bear Load, .4570+P Govt, RNFP, Handgun, 430 Grain, 20 Rounds 215169, .4570 Government SKU P14570350FPN20TD-200 Categories .45-70 , Case , Loaded Ammo , Precision One , Rifle Why Use 45-70 Subsonic or Trapdoor Ammo? Our 45-70 Springfield Trapdoor rounds, as well as our 405 and 500 grain subsonic rounds, are loaded with smokeless powder, and every batch is pressure tested to ensure they do not exceed the limits of older rifles
.4570 Govt Cowboy Action Ammo by Cowboy Choice Ammunition from choiceammunition.com
Not only do we pressure test in a universal receiver, but we also use a Trapdoor rifle to. Precision One 45-70 Gov't 350 grain Flat Point Trapdoor 20 rd box FREE SHIPPING NO SALES TAX OUTSIDE OF PA (200 rd case) $ 369.99 Original price was: $369.99
.4570 Govt Cowboy Action Ammo by Cowboy Choice Ammunition
Not only do we pressure test in a universal receiver, but we also use a Trapdoor rifle to test the velocity and completeness of burn. Army's Springfield Armory for use in the Springfield Model 1873, which is known to collectors as the "Trapdoor Springfield." The new cartridge was a replacement for the stop-gap.50-70 Government cartridge, which had been adopted in 1866, one year after the end of SAAMI has set 45-70 pressure levels @ 28,000 PSI, which is potentially enough pressure to damage trap door actions, depending on the pressure curve of the ammo.
45/70 Government 510gr. Hard Cast Steinel Ammunition Co. Precision One 45-70 Ammunition Trapdoor Version PONE882 350 Grain Flat Point 20 Rounds My Account; 877-229-0351 Mon - Fri (9AM - 5PM EST) Email Us; 877-229-0351 Mon - Fri (9AM - 5PM EST) Email Us
HSM Bear Load, .4570+P Govt, RNFP, Handgun, 430 Grain, 20 Rounds 215169, .4570 Government. Why Use 45-70 Subsonic or Trapdoor Ammo? Our 45-70 Springfield Trapdoor rounds, as well as our 405 and 500 grain subsonic rounds, are loaded with smokeless powder, and every batch is pressure tested to ensure they do not exceed the limits of older rifles SAAMI has set 45-70 pressure levels @ 28,000 PSI, which is potentially enough pressure to damage trap door actions, depending on the pressure curve of the ammo.