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300 whisper killing power?

 
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  #1  
Old 05-02-2011, 02:06 PM
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Join Date: Mar 2011
Location: Washington state
Posts: 105
300 whisper killing power?

I have a friend that was asking me about the 300 whisper round the other day and I couln't answer his question.
What he wanted to know was how much killing power could he get out of the sub-sonic whisper?
I assume it would be enough to kill a coyote (that's what I told him anyway).
But he wanted to know if it has enough power to kill deer. I told him I was sure it's not recomended for deer, but didn't know for sure what kind of power he could get out of it.
How about it? I assume it would kill a deer with a head shot, but how about a shot to the vitals?
Just curious. He has ordered an AR-15 upper in the caliber which he plans on putting a silencer on. If nothing else, it should be a fun paper and rockchuck shooter.
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  #2  
Old 05-02-2011, 04:56 PM
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Join Date: Oct 2010
Location: Watertown, SD
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Re: 300 whisper killing power?

for sub sonic figure about the same power as a 357mag, for super sonic figure 44mag with better BC
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Old 05-02-2011, 05:27 PM
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Join Date: Nov 2005
Location: Oregon
Posts: 942
Re: 300 whisper killing power?

the problem with killing deer with subsonic bullets(i've killed 3 with a subsonic 220gr smk from a whisper) is not the speed it's the bullet selection.

the smk's are like shooting them with field points. i shot all 3 in the vitals, and had 1 go straight down, because i got a fair amount of bone, the other 2 went a little ways, but were recovered.

there are not any great bullets for shooting deer with the subsonic whisper. guys have been trying for a long time. you can do it, but make a good shot, and try and hit some bone.

if you are doing close in deer work a suppressed .44 with a good hollow point would work a lot better.

good luck
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Old 05-02-2011, 07:02 PM
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Join Date: Jun 2006
Location: Memphis, TN. Soon to be Casper, WY.
Posts: 494
Re: 300 whisper killing power?

I've never shot anything with the sub bullets out of my Whisper, but have shot a pig with a 175 loaded to about 1700 f/s. It drilled from stem to stern and the pig went down on the spot.
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  #5  
Old 05-03-2011, 09:55 PM
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Join Date: Sep 2009
Location: north platte ne
Posts: 387
Re: 300 whisper killing power?

Check out the 300 blackout. I think its pretty much the same thing.
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  #6  
Old 05-04-2011, 12:17 AM
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Join Date: Nov 2005
Location: Oregon
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Re: 300 whisper killing power?

Quote:
Originally Posted by timmyatnop View Post
Check out the 300 blackout. I think its pretty much the same thing.
it is the same thing. nothing new.
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  #7  
Old 05-04-2011, 02:59 PM
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Join Date: Dec 2005
Location: Good Ol' Oklahoma
Posts: 219
Re: 300 whisper killing power?

I believe JD Jones has done some testing with the 300 Whisper and using 240 Sierra bullets at subsonic velocities. His testing has shown good killing power. Apparently the long 240 grain bullet tumbles on impact with animals.

Maybe shorter bullets don't exhibit this tendency at subsonic velocities.
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