Why b/c it's a bigger bullet? Pretty obvious you havelittle experience with larger calibers b/c if you had, you'd know this statementholds no water.I've been around more then just a few canadian moose kills and found the ones we "cannucks" most commonly use (.277 to .308 cal) waste more meat then larger calibers (assuming apples to apples on shot location). Don't get me wrong I'm not saying anything bad about these "common" cals, rather just poking a hole in your theory about losing meat...as I haven't experienced it.

In regards to which one assuming all are as deadly in your hands, no real wrong choice. I have always been a fan of the .375h and seen first hand how it works on NA game. However the 300wsm loaded with a premium bullet will keep you covered be it short or longer shots and seemsa logical choice.