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Rifles, Reloading, Optics, Equipment
Reloading
Bushing size selection
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<blockquote data-quote="Kanoeking" data-source="post: 1902392" data-attributes="member: 113151"><p>Or you can use a ball mic and measure the brass thickness at the case mouth, double it, add your projectiles thickness and then subtract your desired neck tension for your correct bushing size. Case wall .010" x 2 = .020", .020" + .264" = .284". If you want .003" of neck tension you'd take that .284" - .003" and get a .281" bushing. Either way you skin the cat you have to bear in mind, each lot of brass may vary enough to require different bushings.</p></blockquote><p></p>
[QUOTE="Kanoeking, post: 1902392, member: 113151"] Or you can use a ball mic and measure the brass thickness at the case mouth, double it, add your projectiles thickness and then subtract your desired neck tension for your correct bushing size. Case wall .010” x 2 = .020”, .020” + .264” = .284”. If you want .003” of neck tension you’d take that .284” - .003“ and get a .281” bushing. Either way you skin the cat you have to bear in mind, each lot of brass may vary enough to require different bushings. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bushing size selection
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