I have one in 223 that is a Predator Model Dwayne....
with all of those combos you speak of, mine will do less than half an inch at 100 yds...
mine is pretty much as it came from the factory, except I have a couple of mags that Cotis did, that are opened up for a longer length bullet... so the 75s and 80s can be seated out..
mine seems to be real partial to 80 grain Match bullets and the 80 grain A Max....
for the 75 grain weights, mine prefers the 75 gr BTHP from Hornady over their 75 gr AMax...
