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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel twist rate's affect on pressure
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<blockquote data-quote="backwoods83" data-source="post: 482194" data-attributes="member: 29890"><p>Good news is a 9 twist will stabilize those bullets at around 3200fps, bad news is if you want that velocity with a 260 case you may as well s(@t in one hand, wish in the other and see which one fills up quicker. From all I have seen twist and barrel length have virtually no effect on pressure. Depending on your brass ( el cheapo brass first sign of pressure most likely flattened primers leading to loose primer pockets) good brass (Lapua) your first sign will likely be a sticky bolt when lifting. Regroup 8 twist 6.5 creed or 6.5x284 good luck.</p></blockquote><p></p>
[QUOTE="backwoods83, post: 482194, member: 29890"] Good news is a 9 twist will stabilize those bullets at around 3200fps, bad news is if you want that velocity with a 260 case you may as well s(@t in one hand, wish in the other and see which one fills up quicker. From all I have seen twist and barrel length have virtually no effect on pressure. Depending on your brass ( el cheapo brass first sign of pressure most likely flattened primers leading to loose primer pockets) good brass (Lapua) your first sign will likely be a sticky bolt when lifting. Regroup 8 twist 6.5 creed or 6.5x284 good luck. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel twist rate's affect on pressure
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