RE: Why are some calibers more accurate?
I can't take credit for that, my shootin' buddy is one of the best handloaders I've ever met! He weighs everything cases, bullets etc. and is very meticulous with his loads (that's why I'm hanging out with him, I'm trying to learn a thing or two). If I remember correctly we got those results with IMR 4350, and it may have been just one of those days, I'd like to head out to the range again to see if we can duplicate the results (that ES is only from a total of 24 shots fired), but with a pregnant wife, my free time is pretty much occupied.
Gordon