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vertical stringing ?

 
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  #8  
Old 01-15-2009, 06:59 PM
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Re: vertical stringing ?

i'm betting it's the lugs in the receiver. one of them is engaged with more pressure than the other. didn't the military blue print those actions before they were shipped off to war?
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  #9  
Old 01-15-2009, 08:14 PM
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Re: vertical stringing ?

don't think this one had that treatment ... it's a commercial fn mauser action.
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  #10  
Old 01-15-2009, 08:25 PM
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Re: vertical stringing ?

You may want to think about switching to one shot groups. Did you try the CCI250's?
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  #11  
Old 01-15-2009, 09:22 PM
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Location: new mexico
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Re: vertical stringing ?

not yet. i had made these up and put fed 's in em, too pricey to waste.
gonna try imr 4064,rldr15 and varget again tomm. which ever get the tightest group, will get new primers, cci's, and see if groups change....

and what it looks like..


Last edited by splattermatic; 01-15-2009 at 09:29 PM.
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  #12  
Old 01-21-2009, 08:04 PM
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Re: vertical stringing ?

I did some dry firing recently with a custom built on a 700 action. I started out on a bi-pod with rear bag, the target was at 100 yds. I got cumpfy and squeezed it off while watching for shooter induced movement. Wow, there was 1/2 min of jump straight up. To make a long story short, this jump is caused by the movement of the firing pin. I checked another 700 and a 660, both of these exhibited the same problem. Generally the movement was fairly consistant, 1/2 min straight up; however in a string of ten cycles one or two would show 1/4 min. periodically there would be no movement at all or there might be a little lateral movement. I thought it was the bi-pod causing this so I switched to sandbags. This proved to be far more erratic and unpredictable. After playing with the bolt guns I switched to two AR style rifles with JP triggers. I was expecting them to exhibit more movement than the bolts guns. Much to my surprise thre was no detectable movement from these rifles when dry firing from bags or a bi-pod. I said all that to ask this. How much does this movement affect accuracy? Personally I think the movement has occurred prior to the bullet exiting the barrel. Your thoughts on this matter would be appreciated.
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