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Hunting
The Basics, Starting Out
sendero 300winmag
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<blockquote data-quote="BountyHunter" data-source="post: 52427" data-attributes="member: 12"><p>Try different bullets and powder combos.</p><p></p><p>For example, my 300 WSM coyote would not put a 190 JLK under 1.5 inches at 100 with any powder, primer, seating depth etc. Finally got a box of Berger 190s and suddenly I was sub .5 on just about any load.</p><p></p><p>Now for your sendaro, could be many things. Assume the bore is clean of copper? </p><p></p><p>Are the cases coming out straight out of the chamber? Possible off center chamber</p><p></p><p>Have a gunsmith check the crown. Little ding equals big groups.</p><p></p><p>Skim bed it and check the action screws. What do you mean not overtightened? </p><p></p><p>How do you know the scope is not the problem? Have you switched scopes?</p><p></p><p>try the Tubbs Fire lapping kit ($29) think it is zidecker.com of something like that has it.</p><p></p><p>Check case expansion at base of web and shoulder movement forward from virgin case to fired case. Could signal oversize chamber or other problems.</p><p></p><p>Sounds like if the bedding is good, screws tightened right, scope is good, then it has to be chamber or barrel. Gunsmith time to check it out or call Remington and see what they say. they might want it back to check it out.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 52427, member: 12"] Try different bullets and powder combos. For example, my 300 WSM coyote would not put a 190 JLK under 1.5 inches at 100 with any powder, primer, seating depth etc. Finally got a box of Berger 190s and suddenly I was sub .5 on just about any load. Now for your sendaro, could be many things. Assume the bore is clean of copper? Are the cases coming out straight out of the chamber? Possible off center chamber Have a gunsmith check the crown. Little ding equals big groups. Skim bed it and check the action screws. What do you mean not overtightened? How do you know the scope is not the problem? Have you switched scopes? try the Tubbs Fire lapping kit ($29) think it is zidecker.com of something like that has it. Check case expansion at base of web and shoulder movement forward from virgin case to fired case. Could signal oversize chamber or other problems. Sounds like if the bedding is good, screws tightened right, scope is good, then it has to be chamber or barrel. Gunsmith time to check it out or call Remington and see what they say. they might want it back to check it out. BH [/QUOTE]
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sendero 300winmag
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