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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Different types of rifling and there uses.
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<blockquote data-quote="HARPERC" data-source="post: 1350341" data-attributes="member: 30671"><p>I mentioned the article as I thought it was balanced, and mentioned some variables, bullet construction being one. </p><p></p><p>Could have been clearer about why I didn't go that route. </p><p></p><p>I've got on order a 1-6" twist, to stabilize an all copper .264 bullet. In discussions with others here-the theory of reducing initial pressure was mentioned, from reading Bartlein's view I didn't see a clear advantage pressure, velocity wise, in that section "shooters report" and "my only guess" jumped out at me. </p><p></p><p>Also we were talking what I would guess as more "extreme twist" 10"-6". The comment was made "With a gain twist the bullet can not go to sleep. The rifling is always putting a fresh bite on the bullet". </p><p></p><p>The intention is to drive it hard, and the "fresh bite" made it a variable to me. As the bullet isn't made yet, it's a bit of an experiment, and reducing variables is on my mind. </p><p></p><p>Also, decided against coating the barrel as it's also adding another variable.</p><p></p><p>"Rock" having the slight gain I don't have an issue with. Presumably you mean Rock Creek, and they turned us down-can't remember now if it was barrel length (31" finish) twist, or combination of the 2. </p><p></p><p>Bartlein is charging extra for the tooling change required.</p></blockquote><p></p>
[QUOTE="HARPERC, post: 1350341, member: 30671"] I mentioned the article as I thought it was balanced, and mentioned some variables, bullet construction being one. Could have been clearer about why I didn't go that route. I've got on order a 1-6" twist, to stabilize an all copper .264 bullet. In discussions with others here-the theory of reducing initial pressure was mentioned, from reading Bartlein's view I didn't see a clear advantage pressure, velocity wise, in that section "shooters report" and "my only guess" jumped out at me. Also we were talking what I would guess as more "extreme twist" 10"-6". The comment was made "With a gain twist the bullet can not go to sleep. The rifling is always putting a fresh bite on the bullet". The intention is to drive it hard, and the "fresh bite" made it a variable to me. As the bullet isn't made yet, it's a bit of an experiment, and reducing variables is on my mind. Also, decided against coating the barrel as it's also adding another variable. "Rock" having the slight gain I don't have an issue with. Presumably you mean Rock Creek, and they turned us down-can't remember now if it was barrel length (31" finish) twist, or combination of the 2. Bartlein is charging extra for the tooling change required. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Different types of rifling and there uses.
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