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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
First custom rifle is here and i think its a keeper!!!!!
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<blockquote data-quote="MontanaRifleman" data-source="post: 853439" data-attributes="member: 11717"><p>Nice looking cartridge. Some tips...</p><p></p><p>The taper is only .004 per inch which is probably lead to extraction issues. Ackley's tapers were in the .008-.009 per inch range.</p><p></p><p>It looks like you've blown out the web about .002 thou from spec. A lot of guys when they design a cartridge/reamer, will actually push the web in instead of out. This helps keep the primer pockets tight and longer brass life. Also, new brass from the factory will usually be 2-3 thou less than spec so designing your dies and reamer to this dimension is a good idea IMO. </p><p></p><p>My suggestion would be to go to a .520 web diameter and a .502 shoulder diameter.</p><p></p><p>I would also recommend sending your drawing to Dave Kiff at PTG and give him a call and talk through your idea with him before you lay out any $$$$. That will go a long way in getting this right the first time.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 853439, member: 11717"] Nice looking cartridge. Some tips... The taper is only .004 per inch which is probably lead to extraction issues. Ackley's tapers were in the .008-.009 per inch range. It looks like you've blown out the web about .002 thou from spec. A lot of guys when they design a cartridge/reamer, will actually push the web in instead of out. This helps keep the primer pockets tight and longer brass life. Also, new brass from the factory will usually be 2-3 thou less than spec so designing your dies and reamer to this dimension is a good idea IMO. My suggestion would be to go to a .520 web diameter and a .502 shoulder diameter. I would also recommend sending your drawing to Dave Kiff at PTG and give him a call and talk through your idea with him before you lay out any $$$$. That will go a long way in getting this right the first time. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
First custom rifle is here and i think its a keeper!!!!!
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