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Working up load

 
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  #15  
Old 05-02-2011, 07:19 AM
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Re: Working up load

8208 has been around a long time just not marketed to the public unless you could find a pile of 5.56 military surplus ammo to dump it out of! H4895 and Benchmark are hotter than Varget but if you want something you can use in 223 and 308 H4895 is where I'd look. Personally with a 12 twist 223 I'd shoot about 24.5grns of RE10X behind a 40grn nosler, super accurate, and fast, then save the varget for your 308!
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  #16  
Old 05-02-2011, 09:23 AM
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Re: Working up load

That would be pulled ball powder WC844? Its for sale 8lb cost like 90 bucks, there is also WC846. The thing about H335, I had few issues metering, that thing would get stuck in every place of the dispenser, so I switched to granular powder.
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  #17  
Old 05-07-2011, 12:47 PM
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Re: Working up load

Today I was shooting my new load, which I reduced by 1gr to 26gr total. Best group I got is 0.45MOA, so its getting better. Also I had one group 2 shots touching and 3rd had 6" drop, so I switched from 300 to 100 yards, where 3 shots measured 0.45", then I let barrel cool, then fired another group first shot was 2" high from two following which were touching.

This could be sign of my barrel developing something unwanted, or neck tension is not the same, the brass I'm using just been annealed and full sized.

Maybe I should get new brass, since the one I'm currently using been shot for a year, but it looks perfectly fine, shiny an clean. It usually goes through process of annealing an FL sizing after 3 uses which are neck sized.

So the issue now is vertical spread on cold or warm barrel, it was probably 80F and outside temperature 57F.

Is there such thing as updraft or downdraft which can effect vertical spread?

Last edited by Jinx-); 05-07-2011 at 12:50 PM.
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  #18  
Old 05-07-2011, 04:31 PM
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Re: Working up load

Sometimes a cold bore slings high, sometimes low. Check the crown and check for copper fouling or to see if the barrel is touching somewhere.
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  #19  
Old 05-07-2011, 08:15 PM
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Re: Working up load

I did KG-2 bore restore last night, that barrel was like mirror, and first group I fired didn't have any fliers, first shot was 0.35" from the rest of the group from the cold barrel. What I noticed is some sort of residue embedded along corners of the lands. I was only using cotton patch with KG-2 bore restore...
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  #20  
Old 05-07-2011, 08:22 PM
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Re: Working up load

Maybe try some sweets or copper killer and use a 27 cal brass brush, sounds like carbon buildup. You may even run a 35 cal brush up to the neck/throat junction and get it cleaned up.
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  #21  
Old 05-07-2011, 09:15 PM
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Re: Working up load

I stopped using bronze brushes, maybe I need to start it again , all my brushes made of nylon
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