Originally Posted by jmden
Catshooter, Thanks for the reply. I'm not sure what to make of the situation, though, as after I annealed, the +.010 Redding Comp shellholder put 'em right where they should be when it or the +.008 wouldn't before. Didn't try 'multi-bumps'. I'll have to tuck that one away for later. ?? What do you think?
Oh, you wascle... the secrets you keep.
Lookie - the Redding +.010 comp shell holder make your headspace 0.010 LONGER
If the cases don't want to go in the chamber (they are tight), then you want to pull the shoulder back a little, not move it forwards.
If this happens again, use a (GOD FORBID) a regular shell holder, and it'll solve the problem faster... by using a "+" shell holder, you were making it more worser.
In something like this, it is really the corner of the body/shoulder junction that resists changing - it's not "work hardened" but it is harder than the neck - if you soften it by annealing it, it will move easier... but a standard shell holder would also probably do it too.
Over the years I have made up a bunch of shorter than normal shell holders to solve problems like this - I mark them with a red sharpie pen, and keep them in little baggies, separate from the others. Last month, I made a #10 shell holder that was 0.023" shorter than standard so I could resize 600 pcs of fired Lapua .223 brass that was given to me, that wouldn't go into a chamber that WOULD accept new factory brass, and I was using a small body FL die (go figure ??).