I have a RCBS 357-180-sil mould. It casts beautifully. I casted about 400 boolits yesterday with about a dozen culls. I cast straight air cooled WW, and they fall from the mould ~.359". However, it does have an issue. I started to GC, Size and lube today and noticed that the GC shank is too large to seat the check fully by hand before crimping. I use Hornady checks. I started using the sizer to seat them, but am concerned that the bullet may not start into the die straight with the check not being fully seated. Any Ideas, are other GC's a bit larger? Should I seat the checks in a seperate step?