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#431586 - 03/31/06 08:46 PM 257 Arnold Magnum
6mm06 Online
Die Hard Member with a vengeance

Registered: 07/31/05
Posts: 4558
Loc: USA
Does anyone have experience with the 257 Arnold Magnum cartridge? I recently acquired one-very nice rifle, but need some load data. I've been experimenting some, but haven't found that sweet load just yet. This rifle should be capable of some good performance.

Just for information sake, for those who might not know, the 257 Arnold cartridge is based on a 264 Win Mag necked down to 25 caliber. It was produced by Arnold Arms Company out of Arlington, Washington. They have since gone out of business, and the cartridge seems to be as scarce as hen's teeth. I can't seem to find anything on the Internet about it.

I'd appreciate hearing from anyone who knows about the cartridge or who has good load data.

Good Shooting.

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#431587 - 03/31/06 09:46 PM Re: 257 Arnold Magnum [Re: 6mm06]
Ridge Runner Offline
Die Hard Member III

Registered: 04/21/01
Posts: 2718
Loc: Mathias, WV, USA
handloaders guide to catridge conversions list a 257 baker mag, a 264 win mag necked to 257, 120 gr bullet/81.5 gr. of h570/3480 fps. this is all I could find.
RR

Also check out this link, its a 25/300 win. mag. may find something you can start with
http://www.reloadersnest.com/frontpage.asp?CaliberID=109
_________________________
Born to hunt, Forced to work

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#431588 - 03/31/06 11:37 PM Re: 257 Arnold Magnum [Re: Ridge Runner]
Ridge Runner Offline
Die Hard Member III

Registered: 04/21/01
Posts: 2718
Loc: Mathias, WV, USA
if you can tell me the water capacity of a case in grains I could probably help more.
RR
_________________________
Born to hunt, Forced to work

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#431589 - 04/01/06 06:08 PM Re: 257 Arnold Magnum [Re: Ridge Runner]
6mm06 Online
Die Hard Member with a vengeance

Registered: 07/31/05
Posts: 4558
Loc: USA
Thanks Ridge Runner. I'll see what I can find at the address you sent.

Good Shooting.

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#431590 - 04/01/06 06:16 PM Re: 257 Arnold Magnum [Re: 6mm06]
pcammo Offline
Die Hard Member II

Registered: 01/03/05
Posts: 1686
Loc: Helena, MT
Bring it over and we can strap a strain gauge to it and go from there.

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#431591 - 04/03/06 05:01 PM Re: 257 Arnold Magnum [Re: pcammo]
6mm06 Online
Die Hard Member with a vengeance

Registered: 07/31/05
Posts: 4558
Loc: USA
pcammo,

Thanks, I may take you up on that offer. I'd really like to find a sweet load for this rifle.

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