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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How I ruined a good gun--is their hope?
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<blockquote data-quote="Wild_Bill" data-source="post: 193516" data-attributes="member: 4785"><p><strong>Things to try</strong></p><p></p><p>Ok the first thing to do is take of the break and shoot it. if the groups are large have a gunsmith look at the crown. When threading the barrel was it recrowned after the machining if not their might be a mark from the live centre that would have been supporting the barrel inside the muzzle. the reason for removing the break is in case it is not perfectly centred and the projectiles are nicking it on exit.</p><p></p><p>If after removing it it shoots well have a diferent smith check the clearences. if it does not shoot haveva diferent smith check the crown and recrown it then refit the break checking the clearence.</p><p></p><p>Don't shoot it with the break loose you wil just create an accedent and might wreak the rifle.</p><p></p><p>The cryo treatment should not make the groups larger this is the first time I've heard that. Did the gunsmith do it himself or was it sent to a specialist cryo company? </p><p></p><p>Make sure every thing is correctly tensioned and try shooting itbwithout the break as above and it will tell you where to look. if you know a realyngood smith that can lap your barrel try that\as a last resort or even some lapping bullets it is more likley if the barrel was lapped it would have helped the groups more than cryoing tha barrel will ever do.</p><p></p><p>Cheers Bill</p><p>Australia</p></blockquote><p></p>
[QUOTE="Wild_Bill, post: 193516, member: 4785"] [b]Things to try[/b] Ok the first thing to do is take of the break and shoot it. if the groups are large have a gunsmith look at the crown. When threading the barrel was it recrowned after the machining if not their might be a mark from the live centre that would have been supporting the barrel inside the muzzle. the reason for removing the break is in case it is not perfectly centred and the projectiles are nicking it on exit. If after removing it it shoots well have a diferent smith check the clearences. if it does not shoot haveva diferent smith check the crown and recrown it then refit the break checking the clearence. Don't shoot it with the break loose you wil just create an accedent and might wreak the rifle. The cryo treatment should not make the groups larger this is the first time I've heard that. Did the gunsmith do it himself or was it sent to a specialist cryo company? Make sure every thing is correctly tensioned and try shooting itbwithout the break as above and it will tell you where to look. if you know a realyngood smith that can lap your barrel try that\as a last resort or even some lapping bullets it is more likley if the barrel was lapped it would have helped the groups more than cryoing tha barrel will ever do. Cheers Bill Australia [/QUOTE]
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How I ruined a good gun--is their hope?
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