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Rifles, Reloading, Optics, Equipment
Gunsmithing
25x280AI would it work?
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<blockquote data-quote="FEENIX" data-source="post: 2580713" data-attributes="member: 14204"><p>Excellent choice on your barrel twist. My .257 WBY has a 1:7" (mine is only 24" because I want the option for a suppressor) to primarily propel the heavies. I was set for the 131s, and the 133s/135s until another shared a source for the 145s from Black Hole Bullets.</p><p></p><p>G7=.371, COAL=1.44X</p><p></p><p>As seen below, CBTO touching the lands is 2.848" (average of 5) and COAL of 3.441"; I plan on starting at .020" off the lands as my baseline. I have plenty of magazine clearance.</p><p></p><p>[ATTACH=full]380985[/ATTACH]</p><p></p><p>Good luck with your project build.</p></blockquote><p></p>
[QUOTE="FEENIX, post: 2580713, member: 14204"] Excellent choice on your barrel twist. My .257 WBY has a 1:7" (mine is only 24" because I want the option for a suppressor) to primarily propel the heavies. I was set for the 131s, and the 133s/135s until another shared a source for the 145s from Black Hole Bullets. G7=.371, COAL=1.44X As seen below, CBTO touching the lands is 2.848" (average of 5) and COAL of 3.441"; I plan on starting at .020" off the lands as my baseline. I have plenty of magazine clearance. [ATTACH type="full"]380985[/ATTACH] Good luck with your project build. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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25x280AI would it work?
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