i bought a Hornady 2 die set for my 300rum and the seating die if setup per instructions is almost to short with 230gr bergers... I barely have the o-ring in the die body. I see they offer a seater plug for the 208 amax, will this solve this problem? Also does anyone have any experience with the microjust seating stem?? Just wondering if I can upgrade this die and not have to buy a redding.