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TDA

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  1. Strangely enough, I loaded some .45 last night, and in 50 rounds I had 11 primers go in the case sideways with my XL650. Never had a problem before.

    I played with it a bit and found that there was a film of goo between the shell plate and the ram platform that was impeding the full rotation of the shell plate. With the goo in there the detente ball wasn't fully engaging the shell plate, so the primer pocket was not properly aligned with the primer punch.

    Cleaned it all up and the shell plate snaps into position and the primers all go into the cases nicely again.

    There was very little goo, but just enough to cause a problem.

  2. Crimp does not set the neck tension.

    Neck tension is a function of the bullet fit in the case.

    The function of "crimp" in an auto loading pistol is simply to remove the flare that is needed to fit the bullet into the case so that it doesn't get shaved.

  3. It depends on the bullet profile.

    I have some 230 LRN that want to be 1.200", while others work at 1.230".

    I was judging by the exposed shoulder. My LRN's need to have the shoulder flush with the case mouth to run in my 1911.

    I start by calculating the max oal for a particular bullet in a particular barrel, and then work from there.

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