Re: Filing or cutting bullet tips.
Jim, you never heard of ringing a shell? Yeah, Lonewolf called it. You cut almost through the shell, in a circle, and when you fire it the entire front end of the shell comes loose and flies down the barrel.
'Course, since the ID of a 12 gauge is .723, and the OD of a 12 gauge shell is .792, you got a wee little difference of size going, and pressure skyrockets. Then, when it gets to the choke, the barrel gets smaller still, and pressure get higher. If you are lucky you don't blow your choke off. That's assuming that the barrel held and you didn't blow your front hand off.
"But Grandpa used to do it". Grandpa was a dumbass.
It's dangerous as hell. Like huffing gasoline. You might do it 80 or 100 times, and just get high. Or it might kill you the first time. Just - stupid.
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.