.375 H&H Longer Range Load - Help

[dig]

Thanks guys been using the 270 Grn Bares X (now Triple Shock) For years its a great comprimise and hammers game, buffalo, moose, bison, eland, elk, the Sierra and Nosler have a better BC so will try those in the 300 grn range. Interestingly I loaded some old Speer 250 Grains and they pushed just over 2,900 ft per sec (warm day) with no pressure, and grouped right under an inch. I have found the bigger calibers do not tend to be as bullet sensative for groups. It will be a couple weeks but will update everyone on the progress.

Thanks again.

[MagnumManiac]

Originally Posted by dig

Got my second .375 H&H up and running. Weatherby action, 26 inch barrel. Looking for a longer range load. Purchased some Sierra 300 Grn Game Kings, anyone with a pet load. I have had great luck with the 270 Grn Barnes X in my "Africa" .375 but want to stretch this one with a higher BC load. Help please

Dig,
I have gone this route with my 375H+H before I re-chambered to the Weatherby version.
My best loads were found with 2 very different powders; ie: H4350 and Win760. Both powders gave similar velocities with Sierra 300gr SPBT's, around 2600fps AVERAGE VELOCITY.
The H4350 load was 80gr's and the 760 load was with 79gr's. I found 760 to be kinder on my brass, the primer pockets didn't open for more than 10 firings. All loads were in Winchester W-W Super brass with a WLRM primer.

BTW, the best long range bullet I have found in this calibre is the Nosler 260gr Accubond, which I was able to safely get an average velocity of around 2750-2790fps depending on the powder used.

On a side note, the 375Weatherby can achieve 2950fps with this bullet, making it an even better long range venture, mind you the recoil is a bit much from prone, even with a 14lb rifle!

Best of luck with it.

Cheers,
MagnumManiac.

[benchracer]

the Sierra and Nosler have a better BC so will try those in the 300 grn range.

Barnes 270 gr TSX BC .503

Barnes 300 gr TSX BC .555

Nosler 260 gr Accubond BC .473

Nosler 300 gr Accubond BC .485

Sierra 300 gr Gameking BC .475


MidwayUSA shows factory loads from CorBon and Double Tap for the Barnes 235 gr TSX loaded to 3000fps and 3100fps respectively. A quick run on the JBM Ballistics trajectory calculator shows the 235 gr TSX @ 3000fps beating the 270 gr TSX @2700fps in drop to 1000 yards and retained velocity to 600. The 270 gr TSX drifts less and retains more energy at pretty much all ranges. The 300 gr TSX @ 2600fps does even better at wind drift and retained energy. Drop and retained velocity are very similar to the 270 gr TSX.

[dig]

Thanks, thats great info I should have looked a bit harder at the Barnes, love the bullet. I have multiple boxes of the 270 Grn X I purchased when the TSX came out I was afraid it would not shoot as well (like those stupid coated ones) so literaly stocked up. Now I will try te TSX cant beat the Barnes Bullet for performance!

As for the Weatherby Mag conversion could not agree more, fantastic cartridge and does not kick bad at all, now the 378 Weatherby Mag, forget it! Much worst than the 460 Weatherby Mag.

Be a week or two headed on a spring bear hunt but will order and try the TSX 270, SKG 300 and maybe the nosler.

Thanks everyone! Great advice! Except the muzle break, lol.

[Bart B]

Originally Posted by dig

As for the Weatherby Mag conversion could not agree more, fantastic cartridge and does not kick bad at all, now the 378 Weatherby Mag, forget it! Much worst than the 460 Weatherby Mag.

Doesn't the 460 have a larger case capacity and shoot heavier bullets? I would think that in rifles of equal weight and stock design, the 460 ends up having more felt recoil with a 500-gr. than a 378 with a 300-gr. bullet.

[dig]

Yes to both and certainly stock has something to do with it synthetic on the .378 Wby as opposed to wood on the .460 however I find that the bigger high velocity calibers (.338-.378, .378 Wby) have a much sharper and violent recoil than the heavier slower calibers (.375, .416, .458). The .458's, Winchester and Lott, tend to be very gentle in comparison. My 375 H&H and .300 Weatherby Mag both wear McMillan stocks of similar design and weigh it within 1 lb yet the .300 Wby has noticably sharper recoil.

[comfisherman]

Check those barnes bc's from midway against what barnes publishes. I got all hot and excited when I saw the .400 bc on the 235 tsx. Thought I could drive those fast for me, and down load them for my wife.... Then I was given a barnes catalog and the bc from them is .270 which isnt all that exciting.

From barnes website

375 Caliber

Diameter Weight Description S.D. B.C. CAT#
.375" 235-gr TSX FB .239 .270 37552
.375" 270-gr TSX FB .274 .326 37556
.375" 300-gr TSX FB .305 .357 37558
.375" 350-gr TSX FB .356 .425 37560

for a straight across 300 grain comparison, a .357 bc compared to a .485 of the accubond is no comparison. I'm not entirely sure why midways are so off, their adds are pretty solid. Usuaslly my gold standarad for the 375 hh is 4350 and win 760 but my goal was speed in a 19.5 tube.