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Rifles, Reloading, Optics, Equipment
Reloading
Another trimming question.
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<blockquote data-quote="J E Custom" data-source="post: 681483" data-attributes="member: 2736"><p>I have shot cases that were .040 thousandths shorter than the neck chamber (case length</p><p>may vary based on head space ) but the neck length needs to be the same case to case to</p><p>get consistant bullet grip.</p><p></p><p>Bullets are seated to the same overall lengths, so if the necks lengths are different, the bullet </p><p>to neck grip will be different.</p><p></p><p>The reason for trimming and turning is to make the bullet grip consistant and hopefully</p><p>lower Standard deviations.</p><p></p><p>If you trim the necks all the same and you have a few that still did not clean up the decision</p><p>then becomes whether to toss them or trim all the others to there length.</p><p></p><p>Some brass grows more than other based on pressure,design and work hardening, so I </p><p>recomend batching all brass and loading, shooting,sizing, trimming and annealing all of that</p><p>batch at the same time and the same number of times (Don't mix brass that has been fired </p><p>or sized a different number of times).</p><p></p><p>In this game "consistency" is the name of the game. At short distance these small things </p><p>don't have much impact on accuracy but they have a huge effect at extended distances</p><p>in my opinion.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 681483, member: 2736"] I have shot cases that were .040 thousandths shorter than the neck chamber (case length may vary based on head space ) but the neck length needs to be the same case to case to get consistant bullet grip. Bullets are seated to the same overall lengths, so if the necks lengths are different, the bullet to neck grip will be different. The reason for trimming and turning is to make the bullet grip consistant and hopefully lower Standard deviations. If you trim the necks all the same and you have a few that still did not clean up the decision then becomes whether to toss them or trim all the others to there length. Some brass grows more than other based on pressure,design and work hardening, so I recomend batching all brass and loading, shooting,sizing, trimming and annealing all of that batch at the same time and the same number of times (Don't mix brass that has been fired or sized a different number of times). In this game "consistency" is the name of the game. At short distance these small things don't have much impact on accuracy but they have a huge effect at extended distances in my opinion. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Another trimming question.
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