specifically does anybody know perhaps the percentage of damage it increases ? For example I know that with stopping power perk your damage is increased by 40 % but with FMJ I have no idea so I don,t know if it,s worth adding it as an attachment ? TYVM
Walter is partly correct.
on certain guns FMJ can make a difference.
Ex. Famas w/ StopPwr Is 1-3 shot kill
Famas w/ StopPwr