The above is most correct about the boyd's gun stocks. They do require finishing, but the stock is a drop in. My neighbor and long time shooting partner has one one supporting his 26" pac nor tube, and it looks great. If you want something with a little work in it, get a boyds. If you're ready to start shooting, go with the HS. It's expensive, but it is most certainly a ready-to-go drop in, and it's very well made. If you're on a budget, get a bell and carlson and do a home bedding job.
I will not argue with the fact that the 300 wm out thumps the .308. Personally, i feel that all .308s need to be buried deep below earth's crust and never raised up again.... but, like the 30.06, they have much too loyal of a following (though i think the .06 is more deserving.)
I've culled cow and spike elk with 17 remingtons and 204 rugers on texas game ranches, so the old idea of a cannon being needed to bring down large deer and elk is bogus.
The same people that incessantly brag about their big 30s probably pack a .45 in their pants just like I do, and they will be the first to speak up on behalf of its great power (some 500 lbs of energy.)
YOu don't need a cannon. You just need someting that you can place shot after shot with...but don't get me wrong. I have 4 300 wm rifles, but i don't hunt with them unless its dangerous game... and there's not much of that around.
Other short actions to consider: 260 rem (6.5-08), 243 AI (Ackley Improved), 7mm-08 (my favorite), 6.8 SPC (great at 500 yds.) and even the new 7mm and 270 wsm rounds. They are spectacular for me. I have one of each and they will run .75 moa out to 700 yds.
ANyway... good luck and keep the questions coming.
Texas