I have a pretty sweet shooting Mosin 91/30 and ton of milserp 762x54R. I want to start hunting with it and while I know there some decent 7.62 SP's out there They are pretty $$ and usually alot heaver then my 147gr training ammo so I'm assuming the ballistics should be pretty different. I want to shoot alot and stay as consistent as possible between my hunting/shooting ammo and I'm on a budget so... Would it be ok to pull a few hundred of my spam can rounds, reduce the powder load a bit to the appropriate level, and reload them with some .308 ballistic tip bullets?