I am considering building my first .338 caliber rifle. Up to this point I have kept everything 30 cal or smaller. Right now, the short mags are more attractive to me than the long action. Couldn’t even tell you why. So my question is, has anyone compared the two side by side? Does anyone shoot 300 grain bullets out of either? Thinking about the heavier Hammer bullets or berger bullets depending on my purpose, but I am wide open to recommendations at this point.