I've been curious about this for awhile. I occasionally buy some Berry's plated bullets and from what I understand, the max velocity that you are supposed to shoot them at is 1250 FPS. Why is that, and what happens if you do something like shoot them at 1350 FPS. Do bad things happen?
Also, what happens if you have a load that is under that 1250 FPS max velocity in a handgun, but is over it in a rifle? Is it really just the velocity that causes issues, or something else?
I would think that if I can shoot just plain cast at 2000+ FPS or PC even faster, that copper plated bullets could do the same.