Curious. It was rare for me to get one to work properly, and there were no burrs. I picked up a Forster at a gunshow, and have since bought a Forster all-in-one trim/chamfer/deburr attachment that works really well.
Curious how you could get one not to work??
I mean the pilot aligns both in the neck & thru the primer hole, just how can it be out that much