Are you using "once fired" brass or has this brass been reloaded several times? The problem you are having could be due to brass that is too long and in need of trimming, but I suspect your seating die is screwed too far into the press. When you install your seating die, first you unscrew the depth adjuster a few turns so you don't excessively seat the bullet on the first try, then place a case in the shell holder and raise the ram. Screw the seating die in until you feel it barely contact the case mouth. If a crimp is deired, screw the die in an additional 1/4 turn, then tighten the lock ring. Lower the ram and place a bullet in the case mouth then raise the ram. Lower the ram and check the seating depth - if it needs to be seated deeper, screw in the depth adjuster in small increments, NOT THE DIE - repeat this until you achieve the desired depth. It appears that your die is screwed in to the press too far, or your cases need trimming. If you are using Lee dies, this procedure is very quick and easy.
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Last edited by RL357Mag; 06-08-2009 at 04:15 AM.