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The Range
Ammo & Reloading
Slugging a barrel to determine the bore size.
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<blockquote data-quote="Old Fart" data-source="post: 883255" data-attributes="member: 4899"><p>Bore slugging or determining the dimensions of the bore of a rifle has come up a few times in discussions, here's one way to do it:</p><p></p><p>Get some soft lead egg sinkers, make sure they're not the non-lead kind, they're too hard. Follow the basic directions in the link below. I like to pancake the sinker between dowels, you get a much nicer slug than one that you just push thru the bore, do one near the muzzle and another near the throat, push it out the near end, that way you'll know how much bigger it is at the muzzle than at the other end, it will likely be about .0005" tighter at the chamber end.</p><p></p><p></p><p><a href="http://7.62x54r.net/MosinID/MosinSlug.htm" target="_blank">http://7.62x54r.net/MosinID/MosinSlug.htm</a></p><p></p><p>Egg Sinker Size:</p><p></p><p>Size 10 </p><p>For use in .270, 7mm, and .30 Calibers </p><p> </p><p>Size 9 </p><p>For use in .338, .348, 38/.357, and 35 Calibers</p><p> </p><p>Size 8 </p><p>For use in .41, .44, .45, and .475 Calibers.</p><p></p><p><strong><span style="color: Red">As with everything else use good smart safety procedures, like starting with checking to see if gun is loaded..........</span></strong></p></blockquote><p></p>
[QUOTE="Old Fart, post: 883255, member: 4899"] Bore slugging or determining the dimensions of the bore of a rifle has come up a few times in discussions, here's one way to do it: Get some soft lead egg sinkers, make sure they're not the non-lead kind, they're too hard. Follow the basic directions in the link below. I like to pancake the sinker between dowels, you get a much nicer slug than one that you just push thru the bore, do one near the muzzle and another near the throat, push it out the near end, that way you'll know how much bigger it is at the muzzle than at the other end, it will likely be about .0005" tighter at the chamber end. [url]http://7.62x54r.net/MosinID/MosinSlug.htm[/url] Egg Sinker Size: Size 10 For use in .270, 7mm, and .30 Calibers Size 9 For use in .338, .348, 38/.357, and 35 Calibers Size 8 For use in .41, .44, .45, and .475 Calibers. [B][COLOR="Red"]As with everything else use good smart safety procedures, like starting with checking to see if gun is loaded..........[/COLOR][/B] [/QUOTE]
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Slugging a barrel to determine the bore size.
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