The 375 H&H with the right bullet is very capable out to 400 yards. The Barnes 270 grain LRX is a great choice. I've killed quite a few bull moose with this cartridge and bullet combination. It's also a relatively comfortable cartridge to shoot. The recoil pulse is more of a progressive push, as opposed to a sharp snap (Recoil Energy 37.59 ft/lbs and Recoil Velocity 15.32 FPS).
From my perspective, ft /lbs of Kinetic Energy is not the best measurement of terminal ballistic energy....when shooting large game, with heavy bone and muscle structure. In the table below you'll see some of the other ways of quantifying terminal impact energy (e.g. Optimum Game Weight, Taylor K.O. Factor, Momentum). Each method places different biases on bullet velocity, bullet weight and bullet diameter. Of all the formulas the Taylor K.O. Factor seems the most accurate for moose...because it takes caliber (0.375") into account and shouldn't be understated
My bullets are leaving the muzzle at 2839 FPS and are still above 2000 FPS at 400 yards.
Ammunition is loaded by Unknown Munitions using Norma Brass and RL-17. Jake's ammo is incredible!!
When I initially zero'd my rifle I shot seven 3-round groups, with an overall average of 0.427 MOA. Followed by truing my Kestrel 5700 ( Applied Ballistics software), which called for a truing distance of 718 yards. Shooting into a paper target set at 720 yards...I shot one 10-round group...with all 10 shots grouping into 0.673 MOA as measured by Ballistic-X. The correction to muzzle velocity required for truing was 0.28% (2831 FPS-->2839 FPS) The AB Custom Drag Model for the Barnes 270 LRX was wicked accurate.
The longest shot on a bull moose with this setup has been 427 yards. Broadside, double lung hit, excellent terminal bullet performance, bull tipped over within 5 seconds.
My purpose in mentioning all of this, is for anyone considering a 375 H&H, my experience with this cartridge and bullet combination has been really good. It's been very accurate, comfortable enough to shoot and has been devastating on moose and interior Alaska Grizzly bears.
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