I don't know if there is a difference,,,
But the stuff on the right runs like crap through all of me semi-auto's and my model 60 jams almost every shot with it . My 22/45 jams more often then when useing CCI blazers . my 10/22 does not like them much either .
As of this date 8-18-14 at 6:42am I became a proud grandfather I guess I'm officially old