When I was shooting a stock Remington Sendero in 300 WM (w/ a Gen II RAZOR & bipod) I was good for 30 - 40 rounds w/ no issues afterward. I was shooting 180 gr E-tips w/ 78 gr Ramshot. I actually haven't used that gun in like 2 years. For a stock rifle it shoots exceptionally well. I've just been using other rifles for range, hunting, etc. I think I've been spoiled by the short-action w/ a muzzle brake...
I too have good praise for the Rem sendero. I recall practicing for a buffalo hunt shooting my father's Sendero in 300 WM no brake with a leupold, no bipod on it about 7 years ago. I put at least 40 rounds through it per session for 3 sessions. This was when I was a junior in high school and weighed only about 170 lbs. It was a very manageable rifle to shoot. It kicks less than my 700 25-06 Mountain with a pencil barrel. I too have been spoiled by short actions. I have killed quite a few elk with my 243. Its all about shot placement.