Dillon Full Size vs RCBS Full Size vs RCBS Small Base Dies, 5-28-2020

Just wanted to experiment with the Dillon and RCBS full size and RCBS small base dies for 223 REM/5.56 NATO. I only checked the case length and base diameter changes. Both Dillon and the RCBS full size dies made no changes to the base dimension. Both the RCBS full size and RCBS small base dies did increase the case length more than the Dillon full size. The RCBS small base die did shrink the base diameter about .001" All cases fit very well in the head space gauge.