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The Range
Ammo & Reloading
PPU matchline ammo 7.62x54
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<blockquote data-quote="swampratt" data-source="post: 3336295" data-attributes="member: 15054"><p>I was using a bore brush (Nylon) with 0000 steel wool wrapped around it for some time and found just a bit oversized nylon bore brush did just as well.</p><p></p><p>If you have dial calipers that will fit inside the case necks you can measure the ID at the same time turning the case slowly with your other hand.</p><p>You can feel the roughness or smoothness of the inside of the case neck.</p><p></p><p>Now brush it with a spinning bore brush and measure and feel the surface again.</p><p>You may see a big difference.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3336295, member: 15054"] I was using a bore brush (Nylon) with 0000 steel wool wrapped around it for some time and found just a bit oversized nylon bore brush did just as well. If you have dial calipers that will fit inside the case necks you can measure the ID at the same time turning the case slowly with your other hand. You can feel the roughness or smoothness of the inside of the case neck. Now brush it with a spinning bore brush and measure and feel the surface again. You may see a big difference. [/QUOTE]
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PPU matchline ammo 7.62x54
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