I was reloading today when I had some brass that was not decapping, so I lowered the decapping pin a little and still not decapping. I though about it for a few and realized that the primer was not dropping off the decapping pin and on the up stroke it would enter the primer pocket and on the next stage it would re seat as if it did not decap at all. I'm dismissing it as the casing was reloaded to often even though the casing looked great. Any body else ever run into this.