Im sure this has been covered before, but im not finding what I want to know. Im trying to plan a build for deer and elk and I have it narrowed to four rounds 7wsm, 7mm rem mag, 300wsm and 300 win mag. I will be shooting distances up to 700 yards. If I go with the wsm on a long action what gains if any compared to being a short action? Are there any drawbacks building on a long action. I want to shoot the heavier bullets 160-180's in the 7 and 200's or 210's in the 300. Will there be any performance gains by seating the bullets out further and increasing case capacity. The rifle would be setup the same with all of my four choices. I will be buying a new Stevens 200 for the action and ordering a Brux barrel in 26'' setup without the barrel nut and try to keep the total weight around 9-10 pounds. I like wsm's due to them buring a little less powder, but I haven't been convinced they are a better choice over the standard mags. I would really like to have a 338 edge, but not sure how it would perform in a 9-10 pound rifle?