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Rifles, Reloading, Optics, Equipment
Reloading
RAMSHOT LRT POWDER
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<blockquote data-quote="elkaholic" data-source="post: 1446869" data-attributes="member: 13833"><p>The 66 grains of LRT in a 6.5/284 behind a 140 was driving me crazy as it was supposed to be the same burning rate as Retumbo so I called Ramshot and had a nice chat with their tech. He confirmed that 66 grains was indeed the max load, but couldn't/wouldn't explain the approx 10 grains difference in charge needed (if you could put that much retumbo in a 284 case) which of course you couldn't! </p><p>When you look at data for the 300 RUM, the charge weights ARE similar. I know different cartridges act differently with the same powder, but that is REALLY extreme.</p><p>At any rate, he did say that LRT would give 110' more than a max load of Rimshot Magnum, which is saying something! He also said that they tested the powder for temp sensitivity from -40 to +140 and saw 3-5% variation. I'm not exactly sure if that is a linear scale, but would like to know if it was the same ratio from 20-90 degrees F.</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1446869, member: 13833"] The 66 grains of LRT in a 6.5/284 behind a 140 was driving me crazy as it was supposed to be the same burning rate as Retumbo so I called Ramshot and had a nice chat with their tech. He confirmed that 66 grains was indeed the max load, but couldn't/wouldn't explain the approx 10 grains difference in charge needed (if you could put that much retumbo in a 284 case) which of course you couldn't! When you look at data for the 300 RUM, the charge weights ARE similar. I know different cartridges act differently with the same powder, but that is REALLY extreme. At any rate, he did say that LRT would give 110' more than a max load of Rimshot Magnum, which is saying something! He also said that they tested the powder for temp sensitivity from -40 to +140 and saw 3-5% variation. I'm not exactly sure if that is a linear scale, but would like to know if it was the same ratio from 20-90 degrees F. [/QUOTE]
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RAMSHOT LRT POWDER
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