Best Hand load for 375 H&H

thumper1

thumper1

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I just purchased a Browning A-Bolt Medallion in 375 h&h and was just woundering if anyone out there could give me a few ideas as to what a good load for this rifle would be. Keep in mind it'll be used for Bear, Moose, Bufflo.

Thanks
 
i have the same model and caliper, great gun, lighter than the others like rem and winchester, and was told might have more felt recoil, perhaps keep that in mind

there is a number of threads on the 375, go to the "feeding the pigs... reloading section" some great specs there. good luck.
 
Thumper1,
The best load will only be determined by shooting. On the other hand, if a .375 won't shoot with 76-78 grains of 760 and either a 270 or 300 grain bullet, then there is probably something wrong with it. A classic load, for a classic caliber.
The .375 is the only magnum that I've loaded for that seems to consistantly shoot a little better with standard primers than magnums. I've given up wondering why that is.
 
I would shoot 260 gr Accubonds, but for a bison hunt maybe switch to a 270 gr TSX. RL15, Varget, 4064, and a few other similar burn rate powders work real good in 375 HH. I loaded 71 grs RL15 behind the now discontinued 260 gr Nosler BT for 2685 fps in a friend's 24" M70 classic stainless, accurate load and performed well on game
 
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"...The best load will only be determined by shooting..." Yep. You have to work up a load if you're reloading or try a box of as many brands and bullet weights as you can if you're not.
Put a slip on recoil pad on it. A 7 pound .375 H&H is gonna hurt.
 
I've been shooting factory 270gr federal's out of it just to see what it was like recoil wise and I haven't found it to bad yet. I find It's actually an enjoyable rifle to shoot but then again that could change when I start loading up a little hotter rounds lol.
 
78gr IMR4350 behind a Hornady 300 BTSP. This load sighted where you see it shot only nine inches low @330yrds. Pretty much point and shoot at just about anything that needs shootn'
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I doubt if one would ever "need" a bullet heavier than 270 grs for North American game, but I like the way heavy bullets work. The 300 gr is the traditional bullet weight for the .375 H&H, and if I could only shoot copper cup - lead core bullets, the 300 gr Hornady would be my top choice. From the data I've accumulated for the .375 H&H and the .375 Ruger, 350 gr bullets are about as heavy as make sense. The 380 gr Rhino was developed with the .375 H&H in mind, but I don't think you can get quite enough velocity from the H&H for this tough bullet to perform optimally. Loaded in a big case .375's like the Ultra or the .378, they are excellent. The 260 gr AB, loaded to 2700+ fps is an accurate, hard hitting, flat shooting, bullet and would make a good choice for the one rifle hunter going after medium to large sized game where a shot might be on the long side.

If you ever have the need for a solid, those that are short for caliber with parallel sides and a flat nose seem to perform the best. The Barnes 270 gr Banded Solid would be a top choice. The traditional Kynoch style solids for the .375, typified by the 300 gr Woodleigh's and Hornady's with their tapered sides and long length tend to be unstable in penetration. I still have some 286 gr PMP solids, another mono-metal solid, but with a hemispherical nose rather than a flat nose that also performed very well in tests. While in Tanzania I shot, and saw game shot with 300 gr Trophy Bonded solids which are also flat nosed, parallel sided bullets, and despite the fact that they are on the long side for a solid, they performed perfectly on a variety of game.

The .375 H&H does well with powders with burning rates consistent with 4350 (H-4350, IMR-4350, Win-760, Re-15). Hodgdon is marketing a new powder called Hybrid 100V that has a burning rate similar to RE-19. When I was working up loads for the short barreled .375 Ruger Alaskan, this powder gave the 260 gr AB better velocity than any other powder I tried. I haven't loaded H-100V in the H&H, but I don't see why it wouldn't work as well as it did in the Ruger. H-100V is now my go to powder for my own high performance loads in medium and large capacity cartridges. Google St. Mark's Powder for more information about the Hybrid powders.
 
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A sissy pad is a good idea when testing. No point in creating a flinch.

Here are my loads. My rifle is a double with very deep throats. No bullet gets close to rifling. might be over max in your rifle.
235gr 83 4350 300 gr 82 RL19
77 RL 15

250gr 75.5 RL15
80 4350
270 74 RL15
84 RL19
285 84 RL19
 
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I have always had good luck developing loads for the H&H with IMR 4350. Developed loads for my buddyès rifles, in wins rems, and sakos. I have a sako that shoots IMR 4350 and RL-15 about the same but on average out of teh 6-7 375s I had teh oppertunity to play with IMR worked best.
 
75gr IMR 4350 300 gr Hornady RN, SAAMI length plus .040", 1/2" @100 in my 602. Not a max load but top accuracy and I only lose a few fps. Kills real good.
 
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