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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Did I hurt my crown?
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<blockquote data-quote="Centre Punch" data-source="post: 64793" data-attributes="member: 3048"><p>Arthurj,</p><p>Because of what happened to you i manufactured "ranging rods" out of 5mm brass rod for 224 &amp; 243 and 7mm brass rod for 30 cal.</p><p>Each has a lockable collar which i machined out of brass hexagon. </p><p>Instead of marking the rod i set the collar onto the muzzle and take a measurement of the extension above the collar with a vernier. I repeat this with the rod touching the bolt face. Using this method and a dummy round enables me to set my bullet seating depth to an accuracy of .001" without any fear of damaging the crown or rifling etc.</p><p></p><p>Ian.</p></blockquote><p></p>
[QUOTE="Centre Punch, post: 64793, member: 3048"] Arthurj, Because of what happened to you i manufactured "ranging rods" out of 5mm brass rod for 224 & 243 and 7mm brass rod for 30 cal. Each has a lockable collar which i machined out of brass hexagon. Instead of marking the rod i set the collar onto the muzzle and take a measurement of the extension above the collar with a vernier. I repeat this with the rod touching the bolt face. Using this method and a dummy round enables me to set my bullet seating depth to an accuracy of .001" without any fear of damaging the crown or rifling etc. Ian. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Did I hurt my crown?
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