Re: Black powder & cowboy ammo
I think this might be a good example.
You've got two cars. A Pinto with an automatic transmission, and a dragster. Both cars, for whatever reason, max out at 60 MPH.
You get in the Pinto and put the pedal to the metal. 8 to 10 seconds later, you're roaring down the road at 60 MPH.
You get in the dragster and punch it. 1/8 of a second later you are maxed out at 60 MPH.
Now, both cars ended up going the same speed, but the dragster got you there faster and the G-forces your body felt were much greater.
Kinda the same way, smokeless ammo, in the older calibers loaded to the same pressures as the black powder rounds, but smokeless burns so much quicker that it gets to that pressure so much faster, and puts much more of a strain on the gun.
Short answer - if your gun was designed for black powder, don't shoot smokeless in it. It's gonna hurt it. It might stretch the frame. It might blow up in your hand. It might go a couple of hundred rounds. It might happen the first shot. But it's gonna hurt it.
If you want to shoot your old black powder gun, look around and find some black powder ammo. It's out there. It's hard to find, usually, but it's out there.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.