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Rifles, Reloading, Optics, Equipment
Reloading
243ai issues
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<blockquote data-quote="AZShooter" data-source="post: 998115" data-attributes="member: 5219"><p>IMO the rifle is the issue. You would have hit upon some combination that would have given you acceptable groups by now. </p><p></p><p> I would see if I could find someone with a borescope. I would look at the throat to see if it is straight. Look at the entire bore for any anomalies. Also look at the crown.</p><p></p><p>You could remove all the bedding that is making contact with the barrel if you choose. My 1000 yd benchrest friends don't ever bed their barrels just the actions. I have also begun to do this so I can switch barrels at a later date without having to rebed. I cannot say if that will help or not. </p><p></p><p> I would take it apart and look for areas of concern. I often forget all the things on my list so I keep it in my documents. Here is the list:</p><p></p><p>Check front action screw hole for epoxy if it is a blind hole This can have the screw bottoming out before it snugs up the stock</p><p></p><p>Action screw too long is bottoming out in blind hole (same idea as above)</p><p></p><p>Forward screw for front scope ring base too long touching threads of barrel shank so front base is loose</p><p></p><p>Poor crown, optimal way is to check with bore scope </p><p></p><p>Action screw holes in stock too small, drill larger so sides of action screw won't touch</p><p></p><p>Bolt handle touching stock</p><p></p><p>Mag box must not bind</p><p></p><p>Recoil lug making early contact in bottom of bedding (rocking action) </p><p></p><p>Trigger group must not touch stock</p><p></p><p>Trigger guard must not touch trigger</p><p></p><p>Uneven bedding--- tightening one action screw to see if the action pulls up at other end.</p><p></p><p>Action screws improperly torqued</p><p></p><p>Barrel having adequate clearance where it is supposed to be floated</p><p></p><p>Clean bore</p><p></p><p> I am sure there are more things to consider. Perhaps some other posters can share ideas.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 998115, member: 5219"] IMO the rifle is the issue. You would have hit upon some combination that would have given you acceptable groups by now. I would see if I could find someone with a borescope. I would look at the throat to see if it is straight. Look at the entire bore for any anomalies. Also look at the crown. You could remove all the bedding that is making contact with the barrel if you choose. My 1000 yd benchrest friends don't ever bed their barrels just the actions. I have also begun to do this so I can switch barrels at a later date without having to rebed. I cannot say if that will help or not. I would take it apart and look for areas of concern. I often forget all the things on my list so I keep it in my documents. Here is the list: Check front action screw hole for epoxy if it is a blind hole This can have the screw bottoming out before it snugs up the stock Action screw too long is bottoming out in blind hole (same idea as above) Forward screw for front scope ring base too long touching threads of barrel shank so front base is loose Poor crown, optimal way is to check with bore scope Action screw holes in stock too small, drill larger so sides of action screw won't touch Bolt handle touching stock Mag box must not bind Recoil lug making early contact in bottom of bedding (rocking action) Trigger group must not touch stock Trigger guard must not touch trigger Uneven bedding--- tightening one action screw to see if the action pulls up at other end. Action screws improperly torqued Barrel having adequate clearance where it is supposed to be floated Clean bore I am sure there are more things to consider. Perhaps some other posters can share ideas. [/QUOTE]
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243ai issues
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