It seemed to me that according to most of the ballistic charts I've read (for instance www.federalcartridge.com) that the 7mm wsm actually significantly outperforms the rem mag...and even the stw...not talking hand loading, but with factory cartidges. I don't hand load so, haven't really looked at that one way or the other.

Maybe I'm looking at this too simplistically, but if the actual bullet is the same, then speed, ballistic coefficient,and energy have to be what tells the tale, right? I know that there are heavier bullets that can't be loaded in the short mag, but few if any were in that chart for either. Some also say that these cartridge companies "pad" the charts when it comes to the short mags but I don't know if I believe that unless someone would provide hard evidence.

On most of the stuff I've looked at, from my veiwpoint, it (7mm wsm) even out performs its cousin the 300 wsm AFTER the first 100 yds.

I've got one, in the ruger mk II, and even though I'm not too happy with the gun as far as the safety mechanismand I'll never own another stainless/synthetic, the caliber I like very much and plan to get another gun in the same. just my opinion. If someone could shed light on my observations (if they are in error) and explain, I'd appreciate it.