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What are good Powders for 458 Win Mag and 375 H&H
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Slider
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What are the definitive powders for both the 458 and the 375? Every one always lists about 3 or 4 for both. Bolt actions with 26 inch barrels in both. Thanx
 
Posts: 2694 | Location: East Wenatchee | Registered: 18 August 2008Reply With Quote
K. W.
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For .458 Vihtavuori N-133 and for .375 140. Then = N-135 BOOM sofa
 
Posts: 171 | Location: Finland | Registered: 17 December 2007Reply With Quote
Grumulkin
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For 270 & 300 gr. bullets in the 375 H&H Magnum, RL-15 works very well.
 
Posts: 2911 | Location: Ohio, U.S.A. | Registered: 31 March 2006Reply With Quote
Bob in TX
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+1 for RL-15 in the .375


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Posts: 3065 | Location: Hondo, Texas USA | Registered: 28 August 2001Reply With Quote
LWD
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RL15 works better in my H&H than anything else I've tried. Can't help with the .458.

LWD
 
Posts: 2104 | Location: Fort Worth, Texas | Registered: 16 April 2006Reply With Quote
ramrod340
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Only thing I used in 375 H&H was RL15. I've a small amount of heavy bullet 458 and leaned towards. H4895. But I have very minimum testing compared to others on the 458. My loads were slightly compressed with 500grs.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
jeffeosso
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h335


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40030 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
NFMike
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Speaking 375 H&H. RE-15 is good but H414/WW760 will give 60-70fps more velocity for the same pressure. For 300 grains and heavier, RE-17 is about the best I've seen, especially for mono or semi-monos that take up more powder space.
 
Posts: 437 | Location: WY | Registered: 16 November 2004Reply With Quote
ramrod340
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RE-17 is about the best I've seen, especially for mono or semi-monos that take up more powder space.

RL17 keeps showing up. I've got several situations I need to try it.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
vapodog
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I don't have nor ever had a .458....(too much of a wussie I guess) but load H-4350 in my .375 H&H rifles.


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Posts: 28849 | Location: western Nebraska | Registered: 27 May 2003Reply With Quote
NFMike
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Any situation where 4350 burn speed is appropriate but 4350 won't fit, RE-17 should be investigated, especially in the mid sized calibers (338-375). It kicked ass in the 348, was great in the 338 WM and cranked out some great velocities in the 375 with 350 grain bullets. I haven't tested it yet but bet it would shine in the 9.3x62. Too bad Alliant is a tad slow in gettng out info on it. Ther are a lot of appropriate cartridges for it's use.
 
Posts: 437 | Location: WY | Registered: 16 November 2004Reply With Quote
JBrown
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quote:
Originally posted by NFMike:
Speaking 375 H&H. RE-15 is good but H414/WW760 will give 60-70fps more velocity for the same pressure. For 300 grains and heavier, RE-17 is about the best I've seen, especially for mono or semi-monos that take up more powder space.


+1

I really like W760 with 300 gr bullets.


Jason

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Hunting in Africa is an adventure. The number of variables involved preclude the possibility of a perfect hunt. Some problems will arise. How you decide to handle them will determine how much you enjoy your hunt.

Just tell yourself, "it's all part of the adventure." Remember, if Robert Ruark had gotten upset every time problems with Harry
Selby's flat bed truck delayed the safari, Horn of the Hunter would have read like an indictment of Selby. But Ruark rolled with the punches, poured some gin, and enjoyed the adventure.

-Jason Brown
 
Posts: 6842 | Location: Nome, Alaska(formerly SW Wyoming) | Registered: 22 December 2003Reply With Quote
Head Trauma
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For the 375H&H, RL15 or H414 are a good place to start. In my 375 the H414 loads shoot the 270TSX and Banded Solids to the same POI @ 100yards. Smiler
For the 458WM, H335 or AA2230 will easily reach 2150fps with a 500gr bullet.
 
Posts: 1051 | Registered: 02 November 2003Reply With Quote
rnovi
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.375 H&H, H4350 is my powder of choice. About 76.0-80.0gr. of H4350 and the 260-300gr. bullet of your choice will do just about anything.


Regards,

Robert

******************************
H4350! It stays crunchy in milk longer!
 
Posts: 2321 | Location: Greater Nashville, TN | Registered: 23 June 2006Reply With Quote
mrjulian_1970
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+2 for the W760

75-76 grs behind 270 or 300 grain bullets works better than I can shoot in my CZ.
 
Posts: 257 | Location: North Carolina | Registered: 18 July 2008Reply With Quote
Snellstrom
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For the 375 H$H Reloader 15 is the best I've found, I am only shooting 300 grain bullets.
For the .458 I have limited experience but IMR-4895 is shooting very well with the 500 grain Hornady's
 
Posts: 5604 | Location: Eastern plains of Colorado | Registered: 31 October 2005Reply With Quote
groundhog devastation
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And nobody mentiond Accurate 2520 or VARGET for the 375!!! Well I admit to being somewhat of a wuss and preferring 17 Fireballs or 204's or 22-250's or 25-06's to the big kickers but leaving out those two powders for use in the 375H&H astounds me!! Charlie (GHD) PS: Maybe I need to try some RL-15 myself!!


Groundhog Devastation(GHD)
 
Posts: 2495 | Location: SW. VA | Registered: 29 July 2002Reply With Quote
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