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180gr Sierra Gamekings from 308win for deer at 50 - 200m?

 
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  #1  
Old 03-26-2012, 07:29 PM
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Join Date: May 2011
Location: Auckland, New Zealand
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180gr Sierra Gamekings from 308win for deer at 50 - 200m?

Hi guys,

A quick question,

I am wanting to load something slow and heavy in my 308 for close range hunting in order to reduce meat damage on deer sized game.

I was wondering what you guys think about a 180 grain Sierra Gameking launched @ about 2600fps for this purpose? Would I get reliable expansion and penetration at impact velocities of say 2100fps - 2300fps?

Cheers

Proload

Last edited by proload; 03-26-2012 at 08:57 PM.
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  #2  
Old 03-28-2012, 08:31 PM
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Join Date: May 2011
Location: Auckland, New Zealand
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Re: 180gr Sierra Gamekings from 308win for deer at 50 - 200m?

For anyone who is interested in this query, I spoke with Sierra, and they suggested that this bullet selection at these velocities would work well for the stated purpose.

I have bought a box and will develop a load in the next month or two and will test on game as soon as I get a chance (after winter).

Cheers

Proload
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  #3  
Old 03-30-2012, 04:59 AM
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Join Date: Mar 2011
Location: vermont
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Re: 180gr Sierra Gamekings from 308win for deer at 50 - 200m?

You migh want to try, hornady softpoints, works great really puts the smack on them. SLOAN
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Old 04-17-2012, 01:24 PM
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Re: 180gr Sierra Gamekings from 308win for deer at 50 - 200m?

It all depends on your rifling. If you have a 1:10 twist you should be fine. But, if you have a 1:12 twist or slower, you may want to stick with 175's and lighter. 168gr is about ideal for the 1:12 twist.


I am using 168gr AMAX which are running right around 2550 - 2600 fps and they perform very very well.
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Old 04-17-2012, 05:01 PM
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Join Date: May 2011
Location: Auckland, New Zealand
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Re: 180gr Sierra Gamekings from 308win for deer at 50 - 200m?

Yeah, they're pretty long ....

I've checked a bullet stability calculator, and it seems as though they should stabilize, but I'll see when I go and shoot them this weekend ...

I'll let you know.
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  #6  
Old 04-22-2012, 12:32 AM
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Join Date: May 2011
Location: Auckland, New Zealand
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Re: 180gr Sierra Gamekings from 308win for deer at 50 - 200m?

Well .. out of interest these projectiles grouped really well in my Mauser ...

3 separate sweet spots were found. 2 of about 1/2 inch @ 100m and a third of 1/4 inches @ 100m. The 1/4 inch group had an average velocity of 2673fps, but an ES of 38.88 and an SD of 19.69, whereas one of the other 1/2 inch groups averaged 2620, but with an ES of only 12fps and an SD of only 6.11fps.

I'm very happy with these projectiles and envisage that they will work well for me our to 350m.

I will perform more extensive tests on these 3 loads in the coming weeks ...
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  #7  
Old 04-22-2012, 02:59 PM
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Join Date: Apr 2012
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Re: 180gr Sierra Gamekings from 308win for deer at 50 - 200m?

I have nothing but bad luck with this bullet at 2500-2800 fps on deer. I know alot of other people that have had the same problem. The jacket and core like to saparate on blacktail and mule deer. The last blacktail I shot with this bullet was a young buck at 150 yards. Shot him right behind the front shoulder. Blood shot him from nose to tail. Only found the jacket on the backside. It's a great long range target bullet not a hunting bullet. I have never had the Sierra 165 Spitzer Boattail come apart or much meat damage at 2600-3100 fps muzzle velocity. Have shot deer, elk , moose and never had the target move more that 10 yards. Last mule deer shot with this bullet was in my 30 Gibbs at 652 yards.
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