Thanks for the report Greg!  Those 220's have a wide MEPLAT.  By chance did you measure the COAL?
DT actually reduced the COAL on his 220 WNFP offering to 1.2420" which improved cycling to my understanding.  The tipping angle with those wide noses becomes too long at the 1.2500" if I recall.

1.252"

Just by the way it looks, if you seat it much deeper, the beginning of the taper to the meplat would be in the mouth of the case.

I thing I can do without pushing these through the Glock.  Everything I've heard the performance in a Glock barrel is less than ideal anyway.

Greg