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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5X47 Lap imp Quick Load help.
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<blockquote data-quote="Kevin Thomas" data-source="post: 474140" data-attributes="member: 15748"><p>Steve,</p><p> </p><p>I don't have the dimensions for the 6.5x47 AI, but I did run the load using a standard 6.5x47 cartridge. It showed about 73K PSI, but the extra capacity of the AI version would of course drop this. Water capacity would help, if you can determine that, I'd be happy to take another look. </p><p> </p><p>Velocity with a 22" showed about 2850, but there's a lot of variables here, fast barrels and slower ones, so I wouldn't put too much stock in this without knowing I had the accurate inputs. Not to pick at a sore subject, but what brought you to this load? Did you get it from somebody, or work up to it yourself? One thing I'll caution you about, is the fact that very straight-walled cases (those with the body taper mostly removed) can be a bit more difficult to read pressure signs from. The typically sticky bolt lift that you see with most cases in high pressure loads simply don't materialize in this case design. I've dealt with several of the Gibbs cartridges, and there's almost no way you can get sticky bolt lift with any of them. The pressures there, but you don't see that particualar indicator, and you need to rely on others. Prefereably, the sum of several other indicators, to include velocity, case longevity, case head expansion, etc..</p><p> </p><p>hope that helps.</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 474140, member: 15748"] Steve, I don't have the dimensions for the 6.5x47 AI, but I did run the load using a standard 6.5x47 cartridge. It showed about 73K PSI, but the extra capacity of the AI version would of course drop this. Water capacity would help, if you can determine that, I'd be happy to take another look. Velocity with a 22" showed about 2850, but there's a lot of variables here, fast barrels and slower ones, so I wouldn't put too much stock in this without knowing I had the accurate inputs. Not to pick at a sore subject, but what brought you to this load? Did you get it from somebody, or work up to it yourself? One thing I'll caution you about, is the fact that very straight-walled cases (those with the body taper mostly removed) can be a bit more difficult to read pressure signs from. The typically sticky bolt lift that you see with most cases in high pressure loads simply don't materialize in this case design. I've dealt with several of the Gibbs cartridges, and there's almost no way you can get sticky bolt lift with any of them. The pressures there, but you don't see that particualar indicator, and you need to rely on others. Prefereably, the sum of several other indicators, to include velocity, case longevity, case head expansion, etc.. hope that helps. [/QUOTE]
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6.5X47 Lap imp Quick Load help.
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