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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
My 338 Sherman Shortmag
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<blockquote data-quote="ruby76" data-source="post: 1449981" data-attributes="member: 95995"><p>Hey Rich, Aaron here. I started with once fired 300 saum brass and pushed the shoulder back .066 to feel slight resistance closing the bolt. I then necked up to 338 and turned the neck to 1.626 from the case head. Trimmed to 1.945 prior to cow fireforming. First 15 then 18 grains of trailboss powder and still have rounded shoulders. The first firing will sharpen them up, going to do mild loads while breaking in the barrel and finish forming.</p></blockquote><p></p>
[QUOTE="ruby76, post: 1449981, member: 95995"] Hey Rich, Aaron here. I started with once fired 300 saum brass and pushed the shoulder back .066 to feel slight resistance closing the bolt. I then necked up to 338 and turned the neck to 1.626 from the case head. Trimmed to 1.945 prior to cow fireforming. First 15 then 18 grains of trailboss powder and still have rounded shoulders. The first firing will sharpen them up, going to do mild loads while breaking in the barrel and finish forming. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
My 338 Sherman Shortmag
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