FYI..
When I have Tapered Crimped our cartridge and on purpose, not put powder into the cartridge and fired the primed case, the bullet will travel 3"-8" down the bore. Realize that if you drive a bullet into the bore, to these depths , with some sort of a ram and a heavy duty hammer, well, let's just say you've got your work cut-out for you, to do so.
Today while in the Lab, experimenting with stuff, I put my version of the LeGendre Side Crimp, unto the cartridge. Now, I put on a much deeper crimp than I've seen others here do. I first taper crimp, then I put on enough crimp to visibly see the crimp area on the bullet, if it's then pulled for examination. My crimp is deeper, because I open up the four slits in the crimping sleeve, about twice the size than they are from Lee.
Now for the FYI.. So there I was, up on the Klondike, being charged by a Huge, Burly, Highly Angered, Big Foot, who is squarely in my sights, trigger slack has already been taken out of the heavy loaded 450 Bushmaster, when all of a sudden....Ok, that's the wrong story.. And asides, twas only BayouBob and the Mt.Du man, only trying to scare me, but I wasn't scared at all, until they got out of the suit..
But I did fire a primed case, without powder today, and the bullet didn't even budge from the case, not any at all...hummmmm..t