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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5x284 Chamber Length Help
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<blockquote data-quote="benchracer" data-source="post: 898847" data-attributes="member: 22069"><p>It sounds as though the barrel company chambered your rifle for 6.5-284 Winchester (the short action version of the chambering) rather than 6.5-284 NORMA (the long action version of the chambering).</p><p> </p><p> Several years ago, I had a rifle barreled for 6.5-284 NORMA, but failed to specify any COAL or throat dimensions. That was a mistake. With a 140g AMAX, base to tip COAL to the rifling is 3.092". That has proven to limit performance to the point that I feel like I wasted my time and money on the build. It barely outperforms my 6.5x55 @ 600 yards and I am pushing it hard to get there.</p><p> </p><p> I would concur that the desirable COAL would be something like 3.15"-3.20" with VLD's or AMAX's.</p><p> </p><p> Rather than have the rifle throated, I am just going to have it re-chambered to .264 Win Mag and be done with it. The extra case capacity will let me use RL-33 (I hope. I expect to know for sure this spring) and the 8 twist will allow me to shoot 160 grain Matrix VLD's at speeds the 6.5-284 can't hope to match.</p></blockquote><p></p>
[QUOTE="benchracer, post: 898847, member: 22069"] It sounds as though the barrel company chambered your rifle for 6.5-284 Winchester (the short action version of the chambering) rather than 6.5-284 NORMA (the long action version of the chambering). Several years ago, I had a rifle barreled for 6.5-284 NORMA, but failed to specify any COAL or throat dimensions. That was a mistake. With a 140g AMAX, base to tip COAL to the rifling is 3.092". That has proven to limit performance to the point that I feel like I wasted my time and money on the build. It barely outperforms my 6.5x55 @ 600 yards and I am pushing it hard to get there. I would concur that the desirable COAL would be something like 3.15"-3.20" with VLD's or AMAX's. Rather than have the rifle throated, I am just going to have it re-chambered to .264 Win Mag and be done with it. The extra case capacity will let me use RL-33 (I hope. I expect to know for sure this spring) and the 8 twist will allow me to shoot 160 grain Matrix VLD's at speeds the 6.5-284 can't hope to match. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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6.5x284 Chamber Length Help
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