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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Forming 375 Ruger brass from 8x68s cases
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<blockquote data-quote="elkaholic" data-source="post: 1473720" data-attributes="member: 13833"><p>I formed it for my 30/375 S.I. and am currently using it as my go to brass. It is a little tricky until you get the technique down. Jace Callender and "Phorwath" both have done this process with theirs as well. There is a lot of extra length to work with but it also shrinks a bunch when forming my low taper, 40 degree shoulder S.I. I start by trimming to 2.600" and then pushing the shoulder back to my spec with a 338 rcm die. I then neck down again with my 30 die setting the head space and then running the neck a small distance into a 7mm die to taper the mouth. I do this because my chamber is 2.580" and you can't chamber the case unless that portion can slide into the throat a bit. I then load some tite group (I'll have to check the charge) and fill the case with c o w to the neck and plug with a piece of shop towel. After firing, I turn the neck down to fit my chamber spec. It takes at least 2 full load firings to blow the case head out from the web back because you are going from about .518" to .532". The capacity ends up close to Hornady, but much better brass. I have had zero extraction issues with my BAT action even though the rim is only .512".</p><p>The process, of course, would be somewhat different for the 338 or straight 30/375.</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1473720, member: 13833"] I formed it for my 30/375 S.I. and am currently using it as my go to brass. It is a little tricky until you get the technique down. Jace Callender and "Phorwath" both have done this process with theirs as well. There is a lot of extra length to work with but it also shrinks a bunch when forming my low taper, 40 degree shoulder S.I. I start by trimming to 2.600" and then pushing the shoulder back to my spec with a 338 rcm die. I then neck down again with my 30 die setting the head space and then running the neck a small distance into a 7mm die to taper the mouth. I do this because my chamber is 2.580" and you can't chamber the case unless that portion can slide into the throat a bit. I then load some tite group (I'll have to check the charge) and fill the case with c o w to the neck and plug with a piece of shop towel. After firing, I turn the neck down to fit my chamber spec. It takes at least 2 full load firings to blow the case head out from the web back because you are going from about .518" to .532". The capacity ends up close to Hornady, but much better brass. I have had zero extraction issues with my BAT action even though the rim is only .512". The process, of course, would be somewhat different for the 338 or straight 30/375. [/QUOTE]
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Forming 375 Ruger brass from 8x68s cases
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