I keep reading about these 4064 loads of over 50 grains some as much as 53 plus. I have 2 rifles in .30-06 that cannot handle over 49 grains without getting in trouble with pressure. One is a Weatherby Vanguard 2 with no alterations and the other is a M700 with a #4 Douglas barrel. Both are stainless but that probably has no bearing on the pressure issues. Both shoot exceptionally well and have good velocity. The 700 rifle shoots the 4064 best and the Vanguard is best with IMR 4350. It also pressures up with 4350 if I go much over 56 grains. My scales are accurate so as they say I let the rifle tell me what it likes.
