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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need help diagnosing group problems
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<blockquote data-quote="Prairie605" data-source="post: 1195073" data-attributes="member: 93833"><p>This is from a buddies new Remington 700 sps. 20" barrel 10 twist. We can't seem to figure out what is causing the poi change from shot to shot. We replaced the factory houge stock with a stockeys brand bench rest stock. We have tried shooting off a bipod versus bags with no change. The original stock wasn't very stiff so I thought a better, stiffer stock might make the difference, but it didn't help. We did get .5" groups the first day he shot it, but we haven't been able to get a good group again since. The target shows the bullet drop. The lines indicate the first shot then the poi drop for the second. Some groups were factory hornady match. The others were hand loaded Bergers. I shot some and he shot the others. So I don't think the shooter is the problem. </p><p>He did adjust the trigger down from the factory setting after the first shooting session. Could this cause the erratic grouping? I have a timmney I'm going to put on and shoot this evening. That's all I can think to do at this point. The barrel is floated and the scope is a new vortex. Rings are tight and so are the action screws.</p></blockquote><p></p>
[QUOTE="Prairie605, post: 1195073, member: 93833"] This is from a buddies new Remington 700 sps. 20" barrel 10 twist. We can't seem to figure out what is causing the poi change from shot to shot. We replaced the factory houge stock with a stockeys brand bench rest stock. We have tried shooting off a bipod versus bags with no change. The original stock wasn't very stiff so I thought a better, stiffer stock might make the difference, but it didn't help. We did get .5" groups the first day he shot it, but we haven't been able to get a good group again since. The target shows the bullet drop. The lines indicate the first shot then the poi drop for the second. Some groups were factory hornady match. The others were hand loaded Bergers. I shot some and he shot the others. So I don't think the shooter is the problem. He did adjust the trigger down from the factory setting after the first shooting session. Could this cause the erratic grouping? I have a timmney I'm going to put on and shoot this evening. That's all I can think to do at this point. The barrel is floated and the scope is a new vortex. Rings are tight and so are the action screws. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need help diagnosing group problems
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