338 Whisper

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by 7ultra, Sep 19, 2004.

  1. 7ultra

    7ultra Well-Known Member

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    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 ]
     
  2. Varmint Hunter

    Varmint Hunter Well-Known Member

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    You can probably get some info off this site: SSK

    Jones does chamber work for the 338 Whisper along with many other Whisper cartridges.
     
  3. 7ultra

    7ultra Well-Known Member

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    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
     
  4. larrywillis

    larrywillis Well-Known Member

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    7ultra,
    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