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Rifles, Reloading, Optics, Equipment
Reloading
What am I doing wrong here!!
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<blockquote data-quote="65WSM" data-source="post: 2227125" data-attributes="member: 9551"><p>My goal has become one and a half thousandths of neck tension with .264 bullets. That provides sufficient neck tension for hunting and target purposes. Usually I cannot move HBN coated bullets with my fingers. </p><p></p><p>The first thing I check is to see if there is sufficient case room to seat the bullets with the powder charge in place. Ask the folks at Forster (one of the more approachable die makers) about how many of their seating stems are mushroomed each year and how many calls they get about rings on bullets.</p><p></p><p>I partial size the necks with bushings This in the Redding Full Length Bushing die. Leaving the bushing loose results in the base of the neck to remain chamber size, helping to center the bullet in the chamber after reloading. Partial sizing of the neck is explained, with excellent diagrams, in the Berger Manual. One third of the neck should remain unsized.</p><p></p><p>Checking the shoulder bump back can be done with the caliper tools from Sinclair. Three thousandths is all you would ever want to see, even in an AR semiauto chamber. If necessary, because my chamber is too short for the die, I have a riflesmith take ten or more thousandths off the bottom of the die and then use the tall "competition" shellholders to adjust to the desired depth. Both Forster and Wilson have helped me with short chambers by trimming their dies.</p><p></p><p>I chamfer the inside and outside of the necks with the Wilson hand tool and polish the inside of the case neck with steel wool wound around a nylon bore brush chucked in a corded electric drill. The brass Dewey female - female adapter gives the drill chuck an extention to hang on to. With smooth inside of the case the neck tension is more uniform, shot to shot and trip to trip. After annealing this is particularly important.</p><p></p><p>Shoot coated bullets in nitrocarburized barrels. No naked bullets.</p></blockquote><p></p>
[QUOTE="65WSM, post: 2227125, member: 9551"] My goal has become one and a half thousandths of neck tension with .264 bullets. That provides sufficient neck tension for hunting and target purposes. Usually I cannot move HBN coated bullets with my fingers. The first thing I check is to see if there is sufficient case room to seat the bullets with the powder charge in place. Ask the folks at Forster (one of the more approachable die makers) about how many of their seating stems are mushroomed each year and how many calls they get about rings on bullets. I partial size the necks with bushings This in the Redding Full Length Bushing die. Leaving the bushing loose results in the base of the neck to remain chamber size, helping to center the bullet in the chamber after reloading. Partial sizing of the neck is explained, with excellent diagrams, in the Berger Manual. One third of the neck should remain unsized. Checking the shoulder bump back can be done with the caliper tools from Sinclair. Three thousandths is all you would ever want to see, even in an AR semiauto chamber. If necessary, because my chamber is too short for the die, I have a riflesmith take ten or more thousandths off the bottom of the die and then use the tall "competition" shellholders to adjust to the desired depth. Both Forster and Wilson have helped me with short chambers by trimming their dies. I chamfer the inside and outside of the necks with the Wilson hand tool and polish the inside of the case neck with steel wool wound around a nylon bore brush chucked in a corded electric drill. The brass Dewey female - female adapter gives the drill chuck an extention to hang on to. With smooth inside of the case the neck tension is more uniform, shot to shot and trip to trip. After annealing this is particularly important. Shoot coated bullets in nitrocarburized barrels. No naked bullets. [/QUOTE]
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