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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Len's new 7 LRM - first day at the range
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<blockquote data-quote="brentc" data-source="post: 767362" data-attributes="member: 16938"><p>Nope, the same charge weight is not how it works. Retumbo is a slower burning powder than H1000. You should see at least one extra grain of powder more with Retumbo vs. H1000. If you were to load retumbo to the same pressure as your H1000 load, you would see the increased velocity you've heard of. I'm betting you would see at least a 25 fps increase with a max load of retumbo vs. a max load of H1000. However, you should evaluate your load on more than just a velocity increase.</p></blockquote><p></p>
[QUOTE="brentc, post: 767362, member: 16938"] Nope, the same charge weight is not how it works. Retumbo is a slower burning powder than H1000. You should see at least one extra grain of powder more with Retumbo vs. H1000. If you were to load retumbo to the same pressure as your H1000 load, you would see the increased velocity you've heard of. I'm betting you would see at least a 25 fps increase with a max load of retumbo vs. a max load of H1000. However, you should evaluate your load on more than just a velocity increase. [/QUOTE]
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Len's new 7 LRM - first day at the range
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