.243 ? Better then an AR-15 still an AR-15 .270 ? Better then an AR-15 actually an AR-10 but better then .308 well unless you get little green tip from case and then you can put em in the little thing then put that little thingy in a .308 Srsly only if we get hit by a EMP or solar flare

>>64106188
Probably less shmoo next to ones eye.