I did a search but did not find comparisons between the 7mm Rum and the 300 Rum. Here is my need... I have hunted shotgun and handgun for the past 25 years in the woods of Michigan and am now expanding my range. This will be my first serious rifle for open areas and also to take out west to hunt with a friend that lives in WY. Michigan game will be deer. Out West will be Pronghorn, Elk and who knows, maybe Caribou in AK, and remotely a goat or sheep. I want a flat shooting round because I'm not accustomed to long range shooting and hunting. Judging distances will have to be supplemented with a range finder and a shot 300+ at this time is intimidating. Most of my practicing will be at a 200 yard range with confirmation shooting at longer distances. I want a flat shooter so that holdover won't be extreme. Recoil may be a consideration but I do shoot 3 1/2 inch waterfowl loads and when younger shot 3 inch slugs from a light single shot. A friend had an 8 mm Rem mag that I shot a number of times from the bench before the days of improved recoil pads. I think his was just a plastic butt plate. How would the 8mm compare to the 7rum or 300 Rum in recoil? It appears that either would perform well so is it just a matter of a flip of a coin? I'm leaning toward the 7mm Rum because it shoots a little flatter and would have a bit less recoil, although when using the same weight bullet, would be about the same? As far as the versatility of bullets, I would probably have one load for deer/antelope, and another for Elk. I don't imagine needing a huge assortment other than being able to find the best when reloading. Thanks for the help.