snow white Posted May 8, 2015 Report Share Posted May 8, 2015 Hi lads help needed I reloaded some Norma once fired brass the cases where all the same size 1.750 when loaded. after firing yesterday i have just full length resized some and checked for some risen they are coming out at 1.747 and 1.745 can somebody please explain why.I am using rcb dies I am under impresion that the should come out longer.thank you Quote Link to comment Share on other sites More sharing options...
rem708 Posted May 8, 2015 Report Share Posted May 8, 2015 This happens when you full length resize. metal is transfered from around the side wall up into the neck. Each time you trim the length you are effectively taking metal from the body. Eventually the case breaks into two parts about an inch up from the base. If you are very unlucky the case sticks in the receiver and is a real .... to get out. Either just neck size or adjust your full length resize stroke to not push back on the shoulder. Adjust so that the brass only just chambers without any resistance. Quote Link to comment Share on other sites More sharing options...
Underdog Posted May 8, 2015 Report Share Posted May 8, 2015 Don't worry about it. Once your kit settles and they all the same it won't matter. Quote Link to comment Share on other sites More sharing options...
snow white Posted May 8, 2015 Author Report Share Posted May 8, 2015 Does not it make any difference to the powder pressure that the case is shorter Quote Link to comment Share on other sites More sharing options...
Underdog Posted May 8, 2015 Report Share Posted May 8, 2015 No, not by that little amount. Quote Link to comment Share on other sites More sharing options...
snow white Posted May 8, 2015 Author Report Share Posted May 8, 2015 Thank you underdog like your photos of black powder got me thinking my friend in midwales does the same as you will have to have walk round with him to see if I like it he goes partridge shooting. Quote Link to comment Share on other sites More sharing options...
Underdog Posted May 8, 2015 Report Share Posted May 8, 2015 Have a go. :-) Quote Link to comment Share on other sites More sharing options...
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