RaceTire, I am loading right at max. as shown in Nosler #6, using IMR 4831. I have also worked with RL 22 and IMR 4350. At this point I have not experienced any signs of excessive pressure HOWEVER, I will not go beyond what is noted as MAX in this manual.
Actually as is almost always the case I have found the sweet spot with a 150 BT and the 160 AB about 1 grain under max. and that is a comfortable place to be.
Randy
