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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Problems getting a tight group on my 300 Rem. Ultra Mag
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<blockquote data-quote="royinidaho" data-source="post: 227721" data-attributes="member: 2011"><p>Don't know if these suggestions will help but they can't hurt.</p><p></p><p>First free float that barrel. Take those two pressure points off flush with the surrounding wood. Seal these later.</p><p></p><p>Next take 5 one-dollar bills. Stack 'em and grip the ends. Slide them from the down the barrel channel all the way to the recoil lug. They should slide very easily and together.</p><p></p><p>If they don't remove wood from the appropriate spots.</p><p></p><p>After this is completed and the rifle is fully assembled, hold the rifle vertically with on hand around the barrel and fore arm gripping firmly the butt is on the bench. With your other hand and proper tool, alternately loosen and tighten both receiver mounting screws. If you feel movement between barrel and stock with the hand holding the gun, have it bedded.</p><p></p><p>You seem thoro and particular so I'd recommend pillar and skim bedding if bedding is indicated as necessary. For the intended use of the rifle, I'd have it pillar and skim bedded as a matter of course.</p><p></p><p>Another indication would be if your receiver mounting screws cinch up "all of a sudden" or torque down with several turns. My thoughts are that they should cinch up quite quickly. If they do you a good fit between wood and metal is indicated. If not the action is being squished into the stock which is usually not a good thing.</p><p></p><p>After the above it would be a myriad of variables to test. Bullets, powder, primer, seating depth, an on and on and on........</p><p></p><p>If would have been nicer if the groups were stringing in a particular direction. Symmetrical groups that size at 100 yds are a bit worrisome.</p></blockquote><p></p>
[QUOTE="royinidaho, post: 227721, member: 2011"] Don't know if these suggestions will help but they can't hurt. First free float that barrel. Take those two pressure points off flush with the surrounding wood. Seal these later. Next take 5 one-dollar bills. Stack 'em and grip the ends. Slide them from the down the barrel channel all the way to the recoil lug. They should slide very easily and together. If they don't remove wood from the appropriate spots. After this is completed and the rifle is fully assembled, hold the rifle vertically with on hand around the barrel and fore arm gripping firmly the butt is on the bench. With your other hand and proper tool, alternately loosen and tighten both receiver mounting screws. If you feel movement between barrel and stock with the hand holding the gun, have it bedded. You seem thoro and particular so I'd recommend pillar and skim bedding if bedding is indicated as necessary. For the intended use of the rifle, I'd have it pillar and skim bedded as a matter of course. Another indication would be if your receiver mounting screws cinch up "all of a sudden" or torque down with several turns. My thoughts are that they should cinch up quite quickly. If they do you a good fit between wood and metal is indicated. If not the action is being squished into the stock which is usually not a good thing. After the above it would be a myriad of variables to test. Bullets, powder, primer, seating depth, an on and on and on........ If would have been nicer if the groups were stringing in a particular direction. Symmetrical groups that size at 100 yds are a bit worrisome. [/QUOTE]
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Problems getting a tight group on my 300 Rem. Ultra Mag
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