:lol: First off the 375 H&H magnum is NOT a big bore, but a medium bore! The recoil is not bad enough to worry much about the scope being damaged by recoil. :? There is one thing that is a very good idea, IMO! That is to buy the highest quality scope you can afford for a rifle, that is likely to be used for anything hunted 15,000 miles from your home, and at exorbitant daily fees, and costs of Airfare, and trophy fees will be in the thousands. This in addition to the fact that 375 H&H and REAL big bore rifles are often used to defend one's life! Dollars, waiting on a dime mentality, is false eccnomy on serious rifles.
IMO, a 375 H&H Bolt rifle has absolutely no need for a scope that goes above something like a 2-7X40 scope! Also, IMO, the best scope ever made for a 375 H&H is the Luepold VERI-X 111 1.5-5X20 scope with a heavy plex reticle, housed in quick detach rings and bases, and with GOOD iron sights on the barrel! A spare scope can be taken in the same rings as the one on the rifle. With this spare scope already zeroed in, if the scope on the rifle gets damaged, one simply has to flip a couple levers, and change a scope, and finish a very expensive hunt. OR, if the second scope is in the hunting car, or tent, when you break it, while looking at a 48 in Cape Buffalo, or a 10' Brown bear, you simply take the scope off and take the trophy with the irons, instead of having to pass!
Another good thing about the QD rings and bases, and two scopes is, One may be in Africa to do a lot of hunting of Buffalo, and plains game, but intend takeing a Leopard over bait. The extra scope can be a light gathering scope, even a lighted reticle, for the shooting in near darkness that is so often coupled with the takeing of Leopard!
A good rule is a scope is worth the price, up to a point, as long as you stay in the $275 to $500 range. Below that you are takeing a chance of wasting a hunt, and above that there are some very fine scopes, but the difference between a $500 scope, and a $2000 scope is not worth the extra $1500 IMO!