For ever I’ve always just used factory Redding/RCBS dies and had good results. Recently I’ve ran into a couple problems with 257 WBY (crunching necks during seating) and 7WBY (tight bullet fit). I broke out the calipers and determined that the factory FL dies are creating excessive neck tension, .0045” for 257 WBY and .005” for 7WBY.
I ordered a 21st century body die and expander mandrels that should result in .0025” of neck tension. Hopefully that corrects the issue and also gives more consistent results.
Sent from my iPhone using Tapatalk
I ordered a 21st century body die and expander mandrels that should result in .0025” of neck tension. Hopefully that corrects the issue and also gives more consistent results.
Sent from my iPhone using Tapatalk
Comment