roxfo Posted September 22, 2014 Share Posted September 22, 2014 Hi all! It seems that if I am to size brass anywhere near SAAMI min (headspace dimension) the Dillon trim die needs a firm contact with the shell-plate, such that the press cams-over. Is it really ok to do this? Previously I've managed to slightly bend a shell-plate during initial attempts to free a stuck case, so I want to be sure I'm not going to damage another one if I set the die to give a firm contact. I guess that the shell-plate is supported from underneath but can I be sure of no ill effects of camming-over? or would I be better-off shaving a few thousandths off the bottom of the die? Loading .308 Win for a club Palma team using once fired Lapua brass. 2-pass loading on a S1050, Prep pass uses Dillon trim die with RT1200. Thanks for your thoughts and tips! Bob. Link to comment Share on other sites More sharing options...
Henny Posted September 22, 2014 Share Posted September 22, 2014 I had the same problem with .223 and my 1050. I called Dillon and the guy at the help desk told me to take a few thousandths off the bottom of the die with a sander. I did and it works fine. No cam over and the cartridge fits in the go / no go gauge just like it should. Link to comment Share on other sites More sharing options...
StealthyBlagga Posted September 25, 2014 Share Posted September 25, 2014 (edited) My XL-650 .223 setup cams over - the trim die is set ~1/8 turn down past the bottom. Works great. Edited September 25, 2014 by StealthyBlagga Link to comment Share on other sites More sharing options...
Brassaholic13 Posted September 25, 2014 Share Posted September 25, 2014 I wouldn't do it, but that's me. Use a proper separate sizing die to get the head space where you want/need it, then trim with the trim die. Link to comment Share on other sites More sharing options...
roxfo Posted September 30, 2014 Author Share Posted September 30, 2014 Thanks for the comments. I'd prefer not to cam-over if I can avoid it. Any particular reason to use an additional sizing die in preference to shaving a few thou off the dillon size/trim die? I was thinking of using a Redding body die, so that at least the neck isn't getting worked-over twice, and to leave some 'grip' in the dillon size/trim to resist case-spinning. Does this sound like a good plan? .. Link to comment Share on other sites More sharing options...
gigs Posted October 2, 2014 Share Posted October 2, 2014 The cam-over or at least moderate shellplate contact helps keep your trim/size in tolerance. Something to consider. If you set up everything so it's completely floating, you'll likely start to see a larger range of trim sizes and headspace tolerances. I don't know how hard you are hitting, but some contact is a good thing. Link to comment Share on other sites More sharing options...
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