BIZERKO666
Member
New build for me, .308 AR10 platform. Aero Precision upper/lower, Wilson combat barrel and BCG.
Been gifted and range scrounged a bunch of .308 brass. Most of that brass measures between 1.637 - 1.626 on my Hornady Comparitor ( D400) before resizing. My rifle requires me to neck bump down to 1.622-1.621 minimum to reliably chamber. I'm looking at .004-.015. Not so worried about the .004 but everything beyond that bothers me. I am using an old Lee single stage press which requires me to turn the small base RCBS die down more than a half a turn, maybe 3/4 to achieve that dimension. I'm assuming both flex in the press and a very tight tolerance in the Wilson barrel.
Trying not to over work my brass. Have not tried a go-no go gauge yet, once fired brass yields about 1.622 form fire dimensions.
Been gifted and range scrounged a bunch of .308 brass. Most of that brass measures between 1.637 - 1.626 on my Hornady Comparitor ( D400) before resizing. My rifle requires me to neck bump down to 1.622-1.621 minimum to reliably chamber. I'm looking at .004-.015. Not so worried about the .004 but everything beyond that bothers me. I am using an old Lee single stage press which requires me to turn the small base RCBS die down more than a half a turn, maybe 3/4 to achieve that dimension. I'm assuming both flex in the press and a very tight tolerance in the Wilson barrel.
Trying not to over work my brass. Have not tried a go-no go gauge yet, once fired brass yields about 1.622 form fire dimensions.