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338-375 H&H or 338-8MM
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Anyone have either one of these I have checked on the net and really could not find any Reloading data and ballistics on them. I know it is the same case but are the shoulders of the two the same and is fire forming required?
 
Posts: 370 | Location: Buxton, ND | Registered: 13 April 2004Reply With Quote
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The 338-8mm will have more case capacity, I believe in the ballpark of the 340 Wetherby. Look at 340 data to see what type of performance could be expected.
 
Posts: 7213 | Location: Alaska | Registered: 27 February 2001Reply With Quote
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My father has a 338/8mm. He calls it a 338/416 but technically they're the same since the 416 and 8mm are the same case. He's out of town a the moment so I can't give specific load data but he uses RL-22 almost exclusively (bullets from 200-225 gr.) and his accuracy and velocity are outstanding.
 
Posts: 852 | Location: Austin | Registered: 24 October 2003Reply With Quote
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ar eyou asking about a 375 necked down to 338, no other changes, or improved?

if improved, this is the same as the 338x8rem mag...

which is the same as a 340 weatherby, like paul said.

jeffe
 
Posts: 40073 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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I think they are the same cartridge just when you neck the 375 H&H down you have to blow the shoulder out so I would say necking up the 8mm would be alot easier. I figured that the 340 would be close but the brass is so damn expensive but if you went that route it would be alot less work and you could get factory ammo in a pinch. I might have to look at going the weatherby route. Thanks for the info
 
Posts: 370 | Location: Buxton, ND | Registered: 13 April 2004Reply With Quote
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Might try forming 416 or 8 rem mag into 340?

anyone done that?

jeffe
 
Posts: 40073 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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I am a big time 340 freak and basically that is what you are talking here. I've used both the H&H and the 8 RM to make 340 cases. Honestly I don't do either any more, I just get new Wby cases it is a lot easier and saves some time.

Just my thoughts...

"GET TO THE HILL"

Dogz
 
Posts: 879 | Location: Bozeman,Montana USA | Registered: 31 October 2001Reply With Quote
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I believe you are talking about the .375 Taylor (.375/.338), or a cartridge that uses a .338 case and a .375 bullet. The .375 Taylor is an outstanding wildcat, since its ballistics are similar to those of the .375 H&H from a relatively small .338 case.

Here is some reloading data for the .375 Taylor:

http://www.geocities.com/bw_99835/375Taylor.htm
 
Posts: 2448 | Location: Alaska | Registered: 25 May 2002Reply With Quote
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Ray,
while that mistake has been made before.. this fella is asking after a .338 bullet/case.. which matches the 340 weatherby


jeffe
 
Posts: 40073 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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