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338 Whisper

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Old 09-19-2004, 05:23 PM
Silver Member
Join Date: Feb 2004
Location: Madison, WI
Posts: 171
338 Whisper

Does any one have any ballistic information on the 338 whisper based off of the 7mm BR. I think this would make a hum-dinger of a cartridge for punching paper and deer. Proposed rifle configuration would be a bolt action rifle, with an extremely thick 17 inch barrel. Any suggestions and or experiences?

[ 09-19-2004: Message edited by: 7ultra ]
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Old 09-19-2004, 05:41 PM
Platinum Member
Join Date: Dec 2001
Location: Long Island, New York
Posts: 2,127
Re: 338 Whisper

You can probably get some info off this site: SSK

Jones does chamber work for the 338 Whisper along with many other Whisper cartridges.
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Old 09-19-2004, 07:28 PM
Silver Member
Join Date: Feb 2004
Location: Madison, WI
Posts: 171
Re: 338 Whisper

Thanks for the info, what I'm looking for is personal load data/loading experiences. Has anyone used any of the whispers before?
Has any one had them chambered in a bolt action? If so, how long of a barrel did you use?
Thanks again
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Old 09-24-2004, 05:16 AM
Silver Member
Join Date: Mar 2002
Location: Casselberry, FL
Posts: 190
Re: 338 Whisper

I've had over 5 years of trigger time with a custom built 300 Whisper that I bought from J.D. Jones. It's a short AR-15 with a supressor. I use it with 220 gr Sierra MK bullets at 1050 fps. This is one of the most interesting rifles that I have ever owned. This rifle will shoot MOA groups at 300 yards and it's a spectacular tactical rifle that makes less noise than a BB gun.

HOWEVER, it would be a terrible choice for deer hunting. This cartridge is designed to be a subsonic round and the trajectory is like launching a '52 Buick downrange. At 300 yards it drops almost 8 1/2 feet. It shoots very tight groups but delivers no significant punch beyond 100 yards. Hot loads with light weight bullets aren't much better.

If you're thinking about getting a 300 or 338 Whisper, I'd say go for it ... but don't use it for hunting. I've got more info about it on my website (one web page will even let you hear a few shots).

- Innovative
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