Originally Posted by RT2506
Once you get to a sticky bolt you are already WAY OVER PRESSURE. My suggestion is that you stick with loads between the start and max suggested by the powder and bullet company that you are using and search for accuracy. Another 25 to 50 fps will not really help you any but the pressure that it takes to get that can harm you and your weapon. It will shorten your case life greatly also. The 300 WM is already running on the ragged edge with max loads.
If you need extra speed don't try to beat up your weapon, but get a bigger caliber. You'd have to go to 300 rum or 30-378 if you are already on the 30 roy.
I've strain gauged my old stw at 75Kpsi and the bolt wasn't even sticky yet. You are talking 80kpsi + peak to start getting sticky with most actions. I'm not going there and I wouldn't go there either if I were you.