I had some Malaysian fmj a few years ago that was not fragmenting when shot into water filled gallon milk jugs. Ok, once in a while it did.
I trimmed off 1 mm or less off tip of bullet and then smoothed it with dremel for feeding. This resulted in exploding jugs every time.
I know accuracy is less and if you take too much off, the core can separate from the jacket while in barrel. But these rounds fed and worked great for close range fun.
I now have some Q3131a and XM193 thanks to info I received here about good rounds. These frag most of the time on jugs, and are good enough as is.
I am wondering if trimming these might shorten the "neck" and make them frag faster or better or be unsafe? Sure worked on the other stuff. Btw that Malaysian smells bad too, do not want more.
I have a few V-max, 69 and 77 grain hp's, but do not have funds for a lot of them. I realize these are better. thanks