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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm sherman max
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<blockquote data-quote="elkaholic" data-source="post: 1642316" data-attributes="member: 13833"><p>Well, the first 7mm Sherman Max was born 5/25/19 at 8:31 a.m. and weighed in at 8 lbs 5oz. Havent determined sex yet but no one cares these days anyway!</p><p>Rhian/Bigngreen spun this baby up so it should be a shooter.</p><p>He fire formed a few brass that I sent him just to get a little initial data. Here is what he learned thus far:</p><p>The cases shrunk .006" average when forming and were very uniform in shrinkage. I set the chamber length exactly at new brass length so first firing will give .006" trim.</p><p>Loaded neck o d was .316" so chamber clearance will be .004";also good.</p><p>Case capacity formed was 77.4 grains; pretty much as predicted.</p><p>Velocity with 180 hybrid reached 3071' with more left according to Rhian, and primer pocket as snug as new.So far so good and might I add the case is "mean sexy" looking!![ATTACH=full]135383[/ATTACH]</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1642316, member: 13833"] Well, the first 7mm Sherman Max was born 5/25/19 at 8:31 a.m. and weighed in at 8 lbs 5oz. Havent determined sex yet but no one cares these days anyway! Rhian/Bigngreen spun this baby up so it should be a shooter. He fire formed a few brass that I sent him just to get a little initial data. Here is what he learned thus far: The cases shrunk .006" average when forming and were very uniform in shrinkage. I set the chamber length exactly at new brass length so first firing will give .006" trim. Loaded neck o d was .316" so chamber clearance will be .004";also good. Case capacity formed was 77.4 grains; pretty much as predicted. Velocity with 180 hybrid reached 3071' with more left according to Rhian, and primer pocket as snug as new.So far so good and might I add the case is "mean sexy" looking!![ATTACH=full]135383[/ATTACH] [/QUOTE]
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7mm sherman max
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