You see them occasionally on the used market, sometimes on Ebay.
It is one fine glass, for sure. I like the way it looks on this classic 722 in older Redfield rings/bases. I skip line checkered that gun 50 yrs. ago as a teenager when that style checkering was in fashion. It has a 14 twist Hart in .22-204 and sizzles light weight bullets into little bitty groups...
DF
