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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How to make a .243 into a Ackley??
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<blockquote data-quote="J E Custom" data-source="post: 1050745" data-attributes="member: 2736"><p>To try and learn something I ran the numbers for chambering a 243 into a 6mm rem. hear is what I found.</p><p></p><p>The 243 Win came out after the 6 mm rem and as usual Winchester tried to top the Rem in velocity and case capacity. They did just slightly. (The 243 will hold approximately I grain more on average.</p><p></p><p>The 6 mm rem really needs a longer action also. (It is longer but smaller in diameter than the 243).</p><p></p><p>I have made lots of 6mm Rem and with the right twist (The reason the 243 did so well was Remington used a 1 in 12 twist and it needed a 1 in 10) they are great cartridges. However I have not Done any 6mm Ackley's so I don't know the case capacity compared to the 243 AI, But I don't think there would be any advantage in case capacity.</p><p></p><p>The other thing Shortgrass mentioned is that the 243 chamber will/may not clean up with just a 1 thread setback. That Is TRUE.</p><p></p><p>So in my opinion the 243 AI would still be the best change overall with little difficulty and would improve the performance if that is what you want.</p><p></p><p>Just Talking</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1050745, member: 2736"] To try and learn something I ran the numbers for chambering a 243 into a 6mm rem. hear is what I found. The 243 Win came out after the 6 mm rem and as usual Winchester tried to top the Rem in velocity and case capacity. They did just slightly. (The 243 will hold approximately I grain more on average. The 6 mm rem really needs a longer action also. (It is longer but smaller in diameter than the 243). I have made lots of 6mm Rem and with the right twist (The reason the 243 did so well was Remington used a 1 in 12 twist and it needed a 1 in 10) they are great cartridges. However I have not Done any 6mm Ackley's so I don't know the case capacity compared to the 243 AI, But I don't think there would be any advantage in case capacity. The other thing Shortgrass mentioned is that the 243 chamber will/may not clean up with just a 1 thread setback. That Is TRUE. So in my opinion the 243 AI would still be the best change overall with little difficulty and would improve the performance if that is what you want. Just Talking J E CUSTOM [/QUOTE]
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How to make a .243 into a Ackley??
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