Orcon
Member
I am soon to be a reloader of 5.56 NATO. I already have a fair number of medium burning powders for my 308s and considering the relationship of powder capacity to bore size, I figured most of those powders should be suitable for the 5.56 as well. However, I've noticed that most preferred target loads are utilizing ball powders such as H335, AA-2230 and R-15. Is there a reason why this is so? Should I buy a jug of ball powder or buck conventional wisdom and just stuff a case full of Varget or AA-2495 and let 'er buck?