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Rifles, Reloading, Optics, Equipment
Reloading
Finding Jam - I thought I knew how
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<blockquote data-quote="SSG Graybush" data-source="post: 2070942" data-attributes="member: 115190"><p>Take a full length sized pc of brass trimmed to spec. Load a bullet long. Shove it in the chamber with your finger. The bullet ogive hangs in the rifling. Remove thr bullet and shorten it by 2 thou and repeat till you can shove the round in the chamber and get the shoulder or belt to make contact without the ogive hanging in the lands. This is my way to find zero jump. Do it once more to confirm. This way is more repeatable/accurate for me then the Hornady coal tool or any method to find zero jump. </p><p> And measuring bto is much more accurate then measuring coal. The meplate on most bullets can vary by 3 to 5 thou. Measuring bto gets you down to 1 to 3 thou. And the bto is what matters.</p><p> To answer your question the trim length of brass doesn't effect your coal or bto. Coal and bto are only affected by your seating stem height.</p></blockquote><p></p>
[QUOTE="SSG Graybush, post: 2070942, member: 115190"] Take a full length sized pc of brass trimmed to spec. Load a bullet long. Shove it in the chamber with your finger. The bullet ogive hangs in the rifling. Remove thr bullet and shorten it by 2 thou and repeat till you can shove the round in the chamber and get the shoulder or belt to make contact without the ogive hanging in the lands. This is my way to find zero jump. Do it once more to confirm. This way is more repeatable/accurate for me then the Hornady coal tool or any method to find zero jump. And measuring bto is much more accurate then measuring coal. The meplate on most bullets can vary by 3 to 5 thou. Measuring bto gets you down to 1 to 3 thou. And the bto is what matters. To answer your question the trim length of brass doesn't effect your coal or bto. Coal and bto are only affected by your seating stem height. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Finding Jam - I thought I knew how
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