So I just finished getting everything ready to work up some 300blk loads and realized I somehow got a bad lee factory crimp die. It just doesn’t adjust in anyway and if I manually put a complete round in it the the round just pushed all the way in until the case is inside the die almost 1/2”. If it was press mounted no way it would ever make contact with the case neck. It appears like the two-piece design is smashed together unlike my other lee FCD’s which adjust when you twist the top...
Anyway....Regardless...I took a case with a freshly seated bullet and the bullet feels very snug. I have no tools to test tension but i tried dropping it from 4 feet high right onto the tip on a hard floor and also holding it in my hand and using moderate force banging it on the ground. After measuring it seems to not have nudged at all which is suprising. The tip is polymer and flattened a hair but I accounted for that. So...Even though I’m using them in an AR it appears the bullets fit snugly into the case without a crimp. Using 225 grain eld-m’s and the seating die does not have any crimp features. Opinions?
Anyway....Regardless...I took a case with a freshly seated bullet and the bullet feels very snug. I have no tools to test tension but i tried dropping it from 4 feet high right onto the tip on a hard floor and also holding it in my hand and using moderate force banging it on the ground. After measuring it seems to not have nudged at all which is suprising. The tip is polymer and flattened a hair but I accounted for that. So...Even though I’m using them in an AR it appears the bullets fit snugly into the case without a crimp. Using 225 grain eld-m’s and the seating die does not have any crimp features. Opinions?