Originally Posted by smokepole
Originally Posted by jeffbird
Form,

why is there such a significant difference in reliable terminal effects between 5.56 and 338 Lapua? Let's pick an equal distance for both, say 800m.




You can play that game a couple of different ways. Consider two bullets with identical kinetic energy. The first is a 105 grain Berger VLD shot out of a .240 Weatherby at 10 feet from the muzzle.

The second is a 155 grain full metal jacket non-expanding bullet out of a .308, X distance downrange.

Identical kinetic energy but there's no doubt in my mind which one I'd rather be shot with. How about you?



Make them identical bullets 77SMK vs 250 SMK, or Bergers, or FMJ's if you wish, with identical placement. No doubt in my mind which will more reliably produce terminal effects more quickly. The 77 might do it, the 250 will do it.

I was asking for the explanation, not advocating one.