Home Forums Hunting & Shooting BPCR 50-70 Govt Granddaddy of them all for sport or battle

More good news from gunner500:

"... one shot on a strip of tape at 25 to center, that was easy ..."




"One at 100 shot off left knee, seated with back against bench, 6 o'clock hold, no time to file front sight to have bullets landing 5-6 inches high, rain on the way."




"No lead on extra tight steel wool patch, hard bullets are bumping up and sealing just fine."



"Couple cope spit patches followed by olive oil patch and she's shining like a new nickel, range tooled a couple sticks of brass, gtg,
this is going to be some easy fun, 70gr holy black through a 50 bore is very mild report, now 100Gr swiss fg through my 40-90 sbn is an entirely different story!"



Jolly good fun.

Original ballistics (.50-450-70) for the Trapdoor .50-70 Govt rifle with about 3 feet of barrel: 450-grain, grease-grooved bullet at 1240 fps, .515" groove diam., 3-groove, 1:42" twist, soft lead.
Gunner500's 530-grainer at 1250 fps from a 30" barrel is a darn sight superior on all counts.
They did have .50-450-55 loads for cadet rifles and carbines, 29-5/8" of bore would be a carbine.
There were also some .50-400-45 loads with shorter chambers and brass for Navy carbines and Rolling Block pistols, IIRC.