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How is this for a vertical string

 
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  #1  
Old 05-17-2013, 07:57 PM
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Join Date: Feb 2012
Location: Salt Lake City Utah
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How is this for a vertical string

The rifle is a Savage lrh 300 win mag. Overall I really like the rifle my average groups are .8 moa. It only shoots well with the muzzle break on by the way. I bought a bunch of new brass and decided to see if i could find an accurate load for fire forming it. That way I was still practicing instead of just slinging lead down range. This was not the best group today but I must say it's the most interesting. Should play with this load or bit or scrap it. I was going to write 2.2 inches and 1.1 moa underneath but somehow I messed that up and wrote 2.2 moa sorry for the typo.
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  #2  
Old 05-17-2013, 08:05 PM
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Re: How is this for a vertical string

Oh I almost forgot each powder charge is trickled and weighed twice ( imr 4831). The bullets are sorted to 1 grain (190 smk). I normally like to keep the jump to .01 but since it's new brass and head spaced to the belt I gave it .03 to be safe. I did not sort the brass at all the case length was already short and varied a lot. The shot in the 7 ring was the cold bore shot if that means anything to anyone.
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Old 05-17-2013, 08:10 PM
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Re: How is this for a vertical string

Ive seen bad vertical like this from loose action screws, you might want to check that out.
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  #4  
Old 05-17-2013, 09:15 PM
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Re: How is this for a vertical string

They are tight I just checked them. Normally I would say it was me but with a .15 moa of horizontal variation I think my shooting is not the culprit. I tried some 208 amax loads after that group and they printed a .8 moa with the bullets in a circular arrangement.
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  #5  
Old 05-17-2013, 09:54 PM
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Re: How is this for a vertical string

Here is an article that deals with vertical stringing: Cures for Vertical Stringing within AccurateShooter.com

Hopefully, you can find something in there that can cure that awful vertical. If you do, you will have some great groups coming.
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  #6  
Old 05-19-2013, 05:34 AM
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Re: How is this for a vertical string

What is your load?
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  #7  
Old 05-20-2013, 10:20 PM
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Location: Salt Lake City Utah
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Re: How is this for a vertical string

70 grains imr4831 3.400 (.03) Fed 215 primers Non fire formed Rem brass. I did weight sort the brass and bullets this time; I found 1 bullet that was 3 grains heavier. I loaded some up this morning stepping from 69 - 71.5 in .5 grain increments.

I was reading that excessive vertical stringing can be caused by very light loads and I am on the light side, according to the sierra manual with 72 or 72.5 max. I have not gotten any stringing with any other loads before. None of my loads have had as little horizontal as that target had, so I think I am close to finding a really good combination.

I am very good about not jerking the trigger and doing the same thing over but friday, when I try my next load I will pay very close attention to the stock position on my shoulder. I have a normal pocket that the rifle just wants to fall into but I might be varying how high and low I am putting it. I will post the targets when I get done.
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