I want to get an idea for which method most of you have had the best luck with. I load TSXs for my Dad's 270 Weatherby with the BT at the base of the neck junction. I do that because of the huge freebore and the rifle really likes it that way. On the other hand, my brother want me to load him up some 140 gr TSX for his 7RM. Have you had better luck loading the bullets 0.050 or 0.030" off the lands? I have seen/heard both quoted, but I just want to know what those of you using them are doing. If you ended up with another thousandths off, let me know too.
I'm thinking around 71 gr of RL 22 or 67 gr IMR 4831 will be the load used, but I will run ladders with them first to get an idea. If you have a 7RM load, I would appreciate that info too.
Temp insensitive powders are not a problem as I am in East TX, and those are some powders I know he has available so he can load his own up later if he desires.