atlanticity Posted July 7, 2016 Report Share Posted July 7, 2016 Hi guys any advice please the newly purchased 6.5 x47 full length resizing die barely pushes back the case shoulders.Im using an rcbs press and have adjusted the die according to the instructions.Ive read you can reduce the stack height of the shell holder effectively allowing the die to push back case shoulder more.Is this right? Regards Jonathan Link to comment Share on other sites More sharing options...
phaedra1106uk Posted July 7, 2016 Report Share Posted July 7, 2016 Are you having problems chambering the resized cases (on their own)?, if not then there's no need to bump the shoulder back any further, the last thing you want is excessive headspace. Link to comment Share on other sites More sharing options...
DaveT Posted July 7, 2016 Report Share Posted July 7, 2016 Need to understand what you mean by 'barely'.....you only need to bump shoulder by .001 or .002 thou ...do you have a comparator to measure what you are getting? Link to comment Share on other sites More sharing options...
atlanticity Posted July 7, 2016 Author Report Share Posted July 7, 2016 Hi guys the fired brass will rechameber,Im unable to resize back to virgin brass dimensions as measured with using headspace comparater. The fired brass seems to grow about 0.0003 of an inch however the primers are still in wich may exagerate this figure regards jonathan Link to comment Share on other sites More sharing options...
phaedra1106uk Posted July 7, 2016 Report Share Posted July 7, 2016 Virgin brass is generally a one-size-fits-all, the brass you've fire formed in your chamber only needs the shoulder bumping back enough so it still chambers after being full length re-sized, if the brass will chamber after being full length re-sized then you don't need to bump the shoulder back any further. In fact as you have a comparator you can reference the re-sized shoulder against a fired case and back the die out to reduce the amount of bump to only get 1 to 2 Thou" as mentioned above, this will give you a better fit and reduce the amount of stretching the case does when fired. Link to comment Share on other sites More sharing options...
atlanticity Posted July 8, 2016 Author Report Share Posted July 8, 2016 Thanks guys for your reply regards Jonathan Link to comment Share on other sites More sharing options...
jcampbellsmith Posted July 8, 2016 Report Share Posted July 8, 2016 Hi guys the fired brass will rechameber,Im unable to resize back to virgin brass dimensions as measured with using headspace comparater. The fired brass seems to grow about 0.0003 of an inch however the primers are still in wich may exagerate this figure regards jonathan How did you manage to measure 0.0003 of an inch? I toil to measure less than 0.001 of an inch. Regards JCS Link to comment Share on other sites More sharing options...
baldie Posted July 8, 2016 Report Share Posted July 8, 2016 Virgin brass is UNDER saami spec, dimensionally, to ensure it will fit any gun. A full length sizing die will only ever put it back to SAAMI spec. Link to comment Share on other sites More sharing options...
atlanticity Posted July 8, 2016 Author Report Share Posted July 8, 2016 Sorry typo ment 0.003 of inch ,thanks baldie that sounds reassuring regards Jonathan Link to comment Share on other sites More sharing options...
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