Well after looking at everything real hard i'm going for the .308. While i previously stated all i wanted was a 100+ yard rifle i rethought what should be core, and that is a light weight heavy hitter that will be fun to shoot, take down big game, and wont fail when i need it the most...., also not drain my bank account;) So lr-308 is it i've got lower,upper,chrome bcg,18" fluted sass bull barrel,vltor modstock,jp rifle length handguard, and misc parts n tools on the way! Hope to be out at the range by the end of the month trying loads and making noise:) Thanks for the input it did help me rethink why im building this rifle.