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Rifles, Reloading, Optics, Equipment
Reloading
7/300WSM Case Capacity and Forming
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<blockquote data-quote="Mikecr" data-source="post: 521191" data-attributes="member: 1521"><p>Here is a before/after improving of a 7saum</p><p>I took the neck to .286, shoulder to .535, and 40deg. Adjusted capacity view for 15thou body taper w/o bullet.</p><p>I only mind total H20 capacity (to case mouths), because that's what I measure & enter into QL(which subtracts bullet volume for whatever bullet& seating I'm using).</p><p></p><p>This is where software is superior to manuals.</p><p>I could take measurements on brass in hand, draw the case, fill out a reamer print, draw estimated fireformed, run 'what-if loads' with various bullets/parameters. </p><p>Twice now, when I got to the point of H20 capacity checks, I found that I was right on the money, and given that I don't FL size, and my powder files were adjusted by lot, my QL predictions have held within 10fps. I can even estimate my max pressure, as I'll see with calipers on the webs, during fireforming.</p><p>This, before ordering barrels, reamers, dies, etc.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 521191, member: 1521"] Here is a before/after improving of a 7saum I took the neck to .286, shoulder to .535, and 40deg. Adjusted capacity view for 15thou body taper w/o bullet. I only mind total H20 capacity (to case mouths), because that's what I measure & enter into QL(which subtracts bullet volume for whatever bullet& seating I'm using). This is where software is superior to manuals. I could take measurements on brass in hand, draw the case, fill out a reamer print, draw estimated fireformed, run 'what-if loads' with various bullets/parameters. Twice now, when I got to the point of H20 capacity checks, I found that I was right on the money, and given that I don't FL size, and my powder files were adjusted by lot, my QL predictions have held within 10fps. I can even estimate my max pressure, as I'll see with calipers on the webs, during fireforming. This, before ordering barrels, reamers, dies, etc. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7/300WSM Case Capacity and Forming
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