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#4208854 - 07/01/10 Best powder for reloading 375 H&H?
maddog Offline
Campfire Tracker

Registered: 02/25/04
Posts: 5940
Loc: Indiana
Boys, I'm going to start reloading for the 375 in the near future, and am getting the neccesary supplies gathered up.

I'm going to use hornady brass, fed. 215M primers, and a variety of 300 gr. soft/solid bullets. Which powder should I start with? I want the loads around 2400 fps., and I don't want to use a compressed load. I have always liked Hogdon powders, and contemplated H4350 or H4895. For those of you already reloading the 375 are there better poders to look at?

maddog

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#4208968 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: maddog]
toad Offline
Campfire Tracker

Registered: 02/01/09
Posts: 5791
Loc: Montana
i'm running H4895 and RE 15 in my .375 AI.
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#4208997 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: toad]
Mark R Dobrenski Offline
Campfire Oracle

Registered: 04/19/01
Posts: 28277
Loc: Bozeman, Montana
R15 or H4350 is my two for my 375 Wby

Dober
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#4209105 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: Mark R Dobrenski]
Mule Deer Online   content
Campfire Oracle

Registered: 07/24/01
Posts: 36990
Loc: Banana Belt, Montana
Those would be my first two choices as well, H4350 for 300's and RL-15 for anything lighter. Though good old IMR4895 will also do quite well with bullets in the 270-grain range.
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John

"Gunwriters, as you know, aren't as informed as their readers are and if it wasn't for the readers, there would be no need for writers..."--Shrapnel, May 2015

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#4209180 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: Mule Deer]
Savuti Offline
Campfire Ranger

Registered: 01/31/07
Posts: 1580
Loc: Collier Co. Florida
Yeah, what he said. ^^^^^^^


Pete
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which cannot be broken by woman.

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#4209188 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: Savuti]
AZ Southpaw Online   content
Campfire Regular

Registered: 10/04/05
Posts: 1348
Never loaded 300s, but RL15 did superbly for me in 235 and 270gr bullets.

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#4209243 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: AZ Southpaw]
UtahLefty Offline
Campfire Kahuna

Registered: 03/18/06
Posts: 22216
Loc: O town UT
I've had such good results with RL-15 (even with 300gr bullets) that I've simply not tried anything else.

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#4209740 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: UtahLefty]
jmp300wsm Offline
Campfire Regular

Registered: 07/14/04
Posts: 1082
Loc: Arizona
+1 with RE 15. I has been very accurate with everything I have tried out of my 375 H&H.
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"If you find yourself in a hole, quit digging"

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#4210255 - 07/01/10 Re: Best powder for reloading 375 H&H? [Re: jmp300wsm]
jorgeI Offline
Campfire Kahuna

Registered: 06/20/03
Posts: 24413
Loc: Orange Park, Florida
Picture's worth a thousand words...

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Originally Posted By JoeBob
I don't need a genealogy lesson from a Cuban mustefino who caught a ride over on a leaky 1957 Chevy that used milk jugs for floats.
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#4210794 - 07/02/10 Re: Best powder for reloading 375 H&H? [Re: jorgeI]
bigwhoop Offline
Campfire 'Bwana

Registered: 11/22/05
Posts: 14198
Loc: Land of loons
Here is my photo - Varget at 200 yards!



Edited by bigwhoop (07/02/10)
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#4211280 - 07/02/10 Re: Best powder for reloading 375 H&H? [Re: bigwhoop]
AZ Southpaw Online   content
Campfire Regular

Registered: 10/04/05
Posts: 1348
Jorge...bigwhoop...geeze fellas. Those are some groups!

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#4211490 - 07/02/10 Re: Best powder for reloading 375 H&H? [Re: AZ Southpaw]
Mike378 Offline
Campfire Regular

Registered: 06/08/05
Posts: 387
Loc: Sydney Australia
Re 15 is the powder likely to give the best combination of velocity and accuracy

Winchester 760 and 300 grainers is likely to shoot in more different 375s than about naything else.

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#4211670 - 07/02/10 Re: Best powder for reloading 375 H&H? [Re: Mike378]
dawaba Offline
Campfire Regular

Registered: 01/16/09
Posts: 1036
Loc: Texas
Originally Posted By: Mike378
Re 15 is the powder likely to give the best combination of velocity and accuracy

Winchester 760 and 300 grainers is likely to shoot in more different 375s than about naything else.


+1 WW760 with 300 gr, R15 or IMR4320 with lighter bullets.
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#4213739 - 07/03/10 Re: Best powder for reloading 375 H&H? [Re: dawaba]
FC363 Offline
Campfire Ranger

Registered: 04/20/07
Posts: 1714
I was able to get good velocity and accuracy from IMR4064.
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"Give a lazy man the toughest job, and he will find the easiest way to do it"

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#4213834 - 07/03/10 Re: Best powder for reloading 375 H&H? [Re: FC363]
Fotis Offline
Campfire Outfitter

Registered: 05/22/09
Posts: 8744
Loc: Cheyenne, Wy
RL 15, H414, Win 760 (same as 414)
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"Weatherby was too long so I nicknamed it "Bee""

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#4214106 - 07/03/10 Re: Best powder for reloading 375 H&H? [Re: Fotis]
PatagoniaHunter Offline
Campfire Regular

Registered: 02/16/05
Posts: 374
Loc: BARILOCHE CITY, RIO NEGRO PROV...
For me,R15 for lighter bullets: 235, 250 and 260 and 270 grs. IMR or AA 4350 (the only 4350 I have) for 300 grs. But with the 260 NP, the best load is with 85 grs AA4350: 2850 f/s. WW cases, F215 primers.

PH

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#4224897 - 07/08/10 Re: Best powder for reloading 375 H&H? [Re: PatagoniaHunter]
IndyCA35 Offline
Campfire Guide

Registered: 03/25/02
Posts: 3634
Loc:
I like H4350 with 300 grain bullets and H4895 with 270 grain bullets. The only reason I don't use Re15 is that I'm trying to minimize the different powders I use in various cartridges.
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#4227755 - 07/09/10 Re: Best powder for reloading 375 H&H? [Re: IndyCA35]
BobinNH Offline
Campfire Oracle

Registered: 01/28/07
Posts: 30709
RL15,H4350,and if I were looking to experiment a bit,RL17.
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#4227846 - 07/09/10 Re: Best powder for reloading 375 H&H? [Re: BobinNH]
JMeier Offline
Member

Registered: 08/21/07
Posts: 249
Loc: arroyo grande CA
Another vote for R15.

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#4249469 - 07/16/10 Re: Best powder for reloading 375 H&H? [Re: maddog]
justy Offline
Member

Registered: 03/25/10
Posts: 66
win 760.73.8 gr will get u2400 fps.top load is 77.9 gr will get u 2500 fps.AS long as ur using hornady bullets.Or as lomg as the diameter is 0.375

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#4250873 - 07/17/10 Re: Best powder for reloading 375 H&H? [Re: justy]
ou76 Offline
Campfire Regular

Registered: 07/15/10
Posts: 409
In the 375 H&H I use WW 760 for the 275 BBC...I have used this load to dispatch my NA bears...

a friend of mine likes 4064 for 250s, WW 760 for 270s and IMR 4831 for the 300...
_________________________
"To pick a rifle and bullet for use on game by muzzle energy alone is, at best, foolish...and can be dangerous to your own health..." Bill Steigers, April 23, 1980

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#4256140 - 07/19/10 Re: Best powder for reloading 375 H&H? [Re: ou76]
GF1 Offline
Campfire Guide

Registered: 11/23/08
Posts: 2694
I like RL15 and IMR 4350.

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#4256240 - 07/19/10 Re: Best powder for reloading 375 H&H? [Re: GF1]
logcutter Offline
Campfire Tracker

Registered: 02/06/04
Posts: 5763
Loc: Central Idaho
I have been told by a guy that pressure checked for the 375 H&H that RL-17 was the best powder for 300 grains and up.At factory velocities the pressure was low and for the heavier weights,his reply was,it really made them scream!!!

Jayco

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#4256302 - 07/19/10 Re: Best powder for reloading 375 H&H? [Re: logcutter]
richardca99 Offline
Campfire Regular

Registered: 05/13/08
Posts: 921
Loc: Jacksonville, FL
RL-15 hands down -- at least for my rifle. 270 TSX and 73.5 grains of 15 is like "buttah."
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Chris

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