Expander shank diameter for AR-15 reloading.
Posted: Wed Nov 09, 2022 8:38 am
I am trying to minimize chambering creep for 250 grain All Copper BARNES #30996 TTSX bullets used in AR-15 reloading. Could you measure the major length shank diameter of YOUR expander plug if you use it to reload for a 450BM AR? I would expect that Expander shank to be between .446" to .450". If you have anecdotal info on your creep, feel free to expound. drayks+