Re: 300 WM or 7mm STW
I have both and if you want less drop, more fps, less wind, more energy, velocity, and less recoil the 7mm STW is the choice. I use winchester brass and have not had a problem with it. If you do not like that I believe you can get RWS brass for the 7mm STW or neck down and fire form norma 300 weatherby brass. Either one you choose will get the job done you just have to pick one. As for barrel life I got 2000 rounds + through my 7mm STW in a sendero and I am now putting a new barrel on it. I know I still could shoot a 2inch group at 500 with it but it started to copper foul really bad after 20 rounds and I really wanted to put a 5c on it so I sent it to Chris.
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