wwillson Posted November 6, 2009 Report Share Posted November 6, 2009 I have a Lee Breech Lock single station press. As I move the ram down to seat the primer, the primer arm jumps and many times flips the primer on its side or completely out of the primer arm. I have looked for any burrs or irregularities that would cause the jump, but there just aren't any. If anyone has experienced this or has found the cause I would really like to know.Wayne Quote Link to comment Share on other sites More sharing options...
wwillson Posted November 9, 2009 Author Report Share Posted November 9, 2009 I figured out that when the spent primer was falling out of the brass it would sometimes hang in the ram. When the hole where the primer falls out is machined there is a cutout made where the cutting tool unnecessarily cuts some steel from the inside of the ram. This 'pocket' was pretty dirty which allowed the spent primers to hang up there instead of falling into the tube. When the primer arm swings in it knocks the spent primer out of the 'pocket', but also causes the primer arm to jump and sometimes tips the primer.The bottom line is to keep the inside of the ram clean!Wayne Quote Link to comment Share on other sites More sharing options...
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