I have just finished a lesson in frustration, case in point, trying to install Hornady gas checks on a Saeco 221. The 221 gas check shank is a tad large and the checks will not snap/slip over it. I have tried using a hammer to tap them on but rarely get them straight and the boolit nose is not liking it much either. Next I tried my Lyman 450 with a gas check seater tool and got them on more consistanly but still have the lead shaving thing on one side. The 221 shank is extremely short and after seating you cannot see any exposed shank, the check is up against the rear driving band. I tried to seat a check on a Lyman 22 boolit and the same thing, the check shaves lead and is difficult to install.
What am I doing wrong?
Personaly, I think the checks are too small.