I was looking, in the future, to hunt world wide and would need a rifle for long range dangerous game. Whether it be kodiak bear or a Cape buffalo. I want a rifle of .375 caliber and was looking at a few different chamberings namely: 375 mercenary, 375 snipetac, 375 cheytac, and lastly the 375 mjolnir. I am not an expert on these cartridges so if you won't mind, pass on some wisdom if you have any experience with these. From my limited knowledge the 375 cheytac is the parent of the snipetac and is just an improved version of it; The 375 mercenary and mjolnir are both wildcats from swamplord. It seems the Mercenary caters more to ultra long range shooting, it fits in a cheytac action and has a cheytac boltface I believe, the mjolnir on the other hand seems to be ment to be used in a lapua action but still has an impressive case capacity. If any of y'all have any knowledge of the differences between the velocities if these four cartridges Id love if you'd share your knowledge. Feel free to correct me on anything or offer any input.
-Coercionist
The 375H&H was pretty much the go to for all dangerous game for most of a century.
The 375 Ruger came along and surpassed it by about 150-200FPS, roughly equalling the 375 Wby.
I tortured myself for a year considering what to buy for my first trip to Africa and settled on a 375 Ruger after shooting a few of the much bigger cased 375's including the Cheytac.
Without going into a long spiel I promise it's more than adequate to meet all of y our needs without absolutely brutalizing you with excessive muzzle blast and recoil.
I also bought a 375 Rum to compare it to and the Ruger was night and day more enjoyable to shoot.
In the field it's said, and largely true you don't feel recoil. You however have to sight the thing in occasionally and if you're going to load your own shoot them quite a bit during load workups etc.
If you're under 250lbs those bigger cased 375's will really pound on you, even the best MB's and suppressors can't do anything about the shifting mass equal and opposite contribution to recoil, they can only reduce the effects of the "rocket motor effect" of the gasses pushing the rifle back your way.
I've shot them braked, unbraked, and with a suppressor so I have experience with all three.
I have a 375 Ruger custom patterned after the original Safari production rifles and I'm absolutely in love with it. Inside of 400 yards it's probably the gun I'm most likely to reach for if I have three or more in the truck for anything but varmints and I have shot a few varmints with it as well.
You can certainly go bigger but that comes at a great cost and there's lots of those big cased 375's, 408's, and 416's that can be bought for a song used because the builders or original buyers could not stand the pounding from them.