Is the .338 Whisper a 500yd elk round?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by MontanaMarine, Nov 7, 2002.

  1. MontanaMarine

    MontanaMarine Well-Known Member

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    What do you think? Check out these ballistics on a 300gr SMK at 1100 fps:

    Range Velocity Energy Momentum Drop
    (yards) (ft/sec) (ft-lbs) (lbs-sec) (moa)
    0 1101.4 808.0 1.47 ---
    100 1062.7 752.3 1.42 -0.0
    200 1029.0 705.4 1.37 -14.0
    300 999.5 665.4 1.33 -29.1
    400 973.3 631.1 1.30 -44.9
    500 950.2 601.4 1.27 -61.5

    Whaddya think??

    MM
     
  2. Jon A

    Jon A Well-Known Member

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    No, you smartass! [​IMG]

    Your tables don't take the fact that these bullets launched at that velocity will be tumbling end over end (which doesn't help the BC very much [​IMG] )

    I'm thinking a 30-30 would be a better choice for long range hunting.... [​IMG] [​IMG] [​IMG]

    Yes, I'm just shootin' you shit! It's fun!
     
  3. MontanaMarine

    MontanaMarine Well-Known Member

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    Damn Jon, you saw right through that [​IMG] .

    Here's what stimulated my post:

    Boyd Heaton related on another post that his fellow long rangers have killed an elk at 2890 yards, with a .338 300gr MK started at 3350 fps.

    Out of curiosity I crunched the numbers with JBM. (had to take the 2000 yards retained velocity, reenter that as MV, and then go to the 890 yd velocity). Anyhow, playing with different elevations and such, it appeared to me that impact velocity at 2890 yards would be betwee 950-1000 fps(assuming bullet stability).

    So , being the smartass you mentioned [​IMG] , I got to thinking about different .338 cartridges, eventually arriving at the .338 Whisper. (which I believe is twisted 1-8).

    Boyd says at 2890 yards, the .338 300grMK(started at 3350fps) "took out both shoulders, leaving an exit wound the size of a volleyball".

    I'm trying to reconcile all this information in my admittedly thick head [​IMG] .

    It led me to the above post. Half serious, with distinct and deliberate smartass undertones [​IMG]

    But seriously hoping for feedback by the LR practitioners around here.

    MM

    [ 11-08-2002: Message edited by: MontanaMarine ]
     
  4. Dave King

    Dave King Well-Known Member

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    MM

    What case is the 338 Whisper on?

    I'm thinking about having a 308 Win opened up to 338 and try 300 grain SMKs. I have tons of 308 brass and more showing up every time I practice, thought I'd build a fun gun in 338 and get a suppressor for it.
     
  5. MontanaMarine

    MontanaMarine Well-Known Member

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    Dave, the 338Whisper I have seen is a necked up 7mmBR. SSK Industries makes it.

    Here's a pic from their website. Bottom left photo, cartridge on the left.....doesnt that 300gr look enormous on that case?!

    MM
    http://www.sskindustries.com/cart_pics.html
     
  6. MontanaMarine

    MontanaMarine Well-Known Member

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    Dave,

    SSK Ind. also makes a .338 #2 Whisper. It is a .221 fireball case opened all the way up.

    MM
     
  7. MontanaMarine

    MontanaMarine Well-Known Member

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  8. Kevin

    Kevin Well-Known Member

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    MM,
    I was thining along the same lines just few nights ago. "A quite gun, comparatively compact, long barrel life, yet still haveing 500-600 yard capabilities." As far as penetration goes I do not see that being a problem. If I currently had the funds I think that I would just go with a 50 cal and lob 750gr bullets out there, Although, from what I have read the .338's seem to be producing better accuracy.
     
  9. Nicholas

    Nicholas Well-Known Member

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    In my mind I would rather put a can on a full power 308 win. (I prefer AWC's Thundertrap). Much better tragectory and the sound signature is comparable to my ruger 10/22 rifle.
     
  10. Boyd Heaton

    Boyd Heaton Well-Known Member

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    MM,do you doubt what I say,think I'm pulling your leg????????Maybe tring to pull the wool over your eye's........ [​IMG] [​IMG] [​IMG]
     
  11. MontanaMarine

    MontanaMarine Well-Known Member

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    Boyd,

    There is much I do not know about looong range shooting. I think I spelled it out sorta clearly on the "pushing the .338" thread.

    Thanks, MM
     
  12. HHI6818

    HHI6818 Member

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    [​IMG]

    I made the dummy 338 Whisper (Hornady 250gr) bullet round over a year ago just to see what it looked like. Month ago I purchased a used 338 Whisper Contender barrel.

    [​IMG]