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Anyone know the recipe for Black Hills 6.5x284 142gr SMK loads?

 
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  #1  
Old 12-13-2012, 09:41 PM
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Join Date: Mar 2010
Posts: 52
Anyone know the recipe for Black Hills 6.5x284 142gr SMK loads?

Hi,

Sorry if this has been hashed out before, I did a search and couldn't find anything. I bought two boxes of Black Hills 142gr SMK's for my new 6.5x284 for barrel break in to get started. Well I realized right off the bat that they were way hot--overkill for shoot one clean one. So I went ahead and loaded up some milder loads for break-in. I've been working up some loads with 142gr SMK's and have a decent 1/2 moa (three shots at 100) load at 43.5 grains of H1000, which is pretty mild and chrono'ing at 2850 fps from a 26" tube.

WELL, to make a long story longer, I tried the Black Hills today, and wham, 3 shots in a tight cloverleaf measuring just over .25" center to center. But they are HOT. 3040 fps and a slightly sticky bolt, no visible pressure signs on the primers though.

So I guess the good news is, it's kinda nice when a rifle is accurate with max loads. But I started thinking, what's the load? Could I duplicate and back off just a touch?

I'm also going to try some 4831SC as I know it's the preferred powder for the SMK's from what I read over on accurateshooter.com.

Anybody know the Black Hills recipe?

Thanks!
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  #2  
Old 12-15-2012, 09:49 PM
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Join Date: Aug 2011
Posts: 22
Re: Anyone know the recipe for Black Hills 6.5x284 142gr SMK loads?

I was surprised when I called Cooper to get some load data for my new cooper M52 6.5x284 that they specifically told me not to shoot Black Hills ammo that it was way too hot. I went out today and was trying the 4831SC from 49-51 gr with 140 gr Bergers and was getting great groups at 50gr of 4831 SC at 2645fps in a 24' barrel. Will still try to work on up to 2850-2950fps. I used R22 last week Had ok groups but cleaning seemed to take much more that the 4831 SC did. Good Luck and work you loads up slow.
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  #3  
Old 12-16-2012, 10:29 AM
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Join Date: Mar 2010
Posts: 52
Re: Anyone know the recipe for Black Hills 6.5x284 142gr SMK loads?

Quote:
Originally Posted by NVHunter1 View Post
I was surprised when I called Cooper to get some load data for my new cooper M52 6.5x284 that they specifically told me not to shoot Black Hills ammo that it was way too hot. I went out today and was trying the 4831SC from 49-51 gr with 140 gr Bergers and was getting great groups at 50gr of 4831 SC at 2645fps in a 24' barrel. Will still try to work on up to 2850-2950fps. I used R22 last week Had ok groups but cleaning seemed to take much more that the 4831 SC did. Good Luck and work you loads up slow.

Thanks for replying and that's VERY interesting. I was realy wondering if they would make such a hot load in a "factory" round. But I guess it's so!
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  #4  
Old 12-16-2012, 10:37 AM
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Join Date: Apr 2010
Location: ND
Posts: 206
Re: Anyone know the recipe for Black Hills 6.5x284 142gr SMK loads?

I too got sticky bolt lifts with that ammo. 3010-3030 fps w/ 26" barrel.
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