grlflh Posted November 18, 2012 Share Posted November 18, 2012 Does anyone have any experience with the Magma Case Master Jr? I am looking to resize 40 S&W. Can any Dillon size die be used with this or just thje modafied Magma die? Link to comment Share on other sites More sharing options...
yoshidaex Posted November 18, 2012 Share Posted November 18, 2012 Watched the video they have online and it doesn't look like a standard sizing die can be used. Link to comment Share on other sites More sharing options...
Steve RA Posted November 18, 2012 Share Posted November 18, 2012 Contact Magma and ask them. Link to comment Share on other sites More sharing options...
jmorris Posted November 18, 2012 Share Posted November 18, 2012 No you can't use normal dies. FWIW some cases have a taper, 9mm being one of them, so your getting the rim right and above that gets further from correct as you go up. They also don't do anything for dings in the extractor grove, why the casepro is a better machine for the job. Link to comment Share on other sites More sharing options...
grlflh Posted November 18, 2012 Author Share Posted November 18, 2012 I have watched to Magma video. Looking to see if anyone has any first hand experience with one. Link to comment Share on other sites More sharing options...
Guy Neill Posted November 18, 2012 Share Posted November 18, 2012 It's been som years since i worked with the Case Master Jr, and I do not have it at hand to examine. My recollection (subject to deterioration with time) is that the die was a standard sizing die. If tehre was any modification, it was the addition of the interior hex to allow turning the die with the hex bar shown in the video. I'll have to check, but at present i think the die was not made by magma. If I have the opportunity, I'll look at it again to see what I can determine. Guy Link to comment Share on other sites More sharing options...
jmorris Posted November 18, 2012 Share Posted November 18, 2012 (edited) I believe the dies they use are Dillon dies that have a slightly larger ID than a standard die. 45 acp for example has a little "rim" that you have to deal with. .004" not a huge difference but enough you can't use a normal die. Edited November 18, 2012 by jmorris Link to comment Share on other sites More sharing options...
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