Thanks for that Lou. That is what I want to hear from you guys.
Most of my hunting parties and friends/family are in the 30-06 / 308 club mostly. Not too many going larger.
So excuse my ignorance with this one. You were using 180gr 300 wm. What would be the biggest difference than a 180gr 308? 180gr 338 wm? Aside from the numbers, the actual real world difference?
I do not load my own yet, so ammo price is very much a factor. (kids are too young to have an actual hobby or free time)
Thanks
This post raised a red flag for me. If ammo cost is a serious concern, and you don't handload, the .300 and .338 magnums might not be for you. Do you have any experience shooting rifles chambered for this class of cartridge, and if so what kind of rifle was it? Lots of guys purchase these rifles only to find out they can't hit with them, and then find out they can no longer hit with the rifles they used to shoot either. Your subconscious will always remind you that certain activities hurt.
IMHO you are better served with a .30/06 that's loaded with the appropriate bullet for whatever game you are pursuing, than you are a .300 that you are unable to shoot well. A fellow who is in tight financial circumstances might be tempted to purchase a low cost rifle in .300 or .338 magnum, only to find out that the reality of shooting one of these things with their light plastic stocks is beyond unpleasant, and in some cases completely unmanageable. The purpose of shooting is hitting the target, but if you intend on purchasing a low cost rifle, hitting will be much easier with a less energetic cartridge.
Don't be beguiled by the figures from a ballistics table. Shooting big case .30 and .338 caliber rifles competently takes some experience, and if you don't handload, you can't very well dial down the power until such time as you've become accustomed to the rifle. The only ammo that will be available to you is full powered stuff. If you already own a .30/06, use the $500 or $600 earmarked for the .300 to buy ammo, then get out and do some realistic field shooting, to hone your skills. A competent marksman, who can shoot well from any position, armed with a .30/06, is far more capable than the marksman armed with a .338 whose recoil and blast are outside his comfort zone, and whose performance is less than competent. Once you begin handloading, you can then reconsider the purchase of a .300 or a .338, if you still feel the need.
If none of this dissuades you, and you're set on one of these rifles, I would suggest a wood stocked M-70 in .300 Winchester. This rifle will cycle reliably, has a good trigger, and should be heavy enough to dampen the effects of the felt recoil. The .300 Winchester is an exceptionally capable cartridge, and of the 3 cartridges mentioned is the best choice. My preference when choosing a medium bore cartridges is to skip past the .338s and .35s and choose a 9.3 or a .375. Be sure that when you mount the scope, that you have at least 4" of eye relief. Be sure that the rifle's LOP is cut to fit you.