so HOW u gonna use a .223" .22lr bullet
in a .264" bore, dummy? :-( By the timeyou allow .005" of slip fit for a barrel liner, the wall thickness could be at most .018". That would be a REALLY sturdy thing to have with you in the field. the .22 unit for the 223 needs no barrel liner, so it is quite sturdy indeed. you AINT carrying an entire spare upper receiver group in the field, dummy. A 3/4 lbs, 10" long .22 unit, however, is quite feasible to always have with you, and the caliber swap takes only 20 seconds, and the accuracy and POI are quite acceptable for foraging. The accuracy of the 22 units for the .30 AK basically suck, and if you don't get the barrel liner EXACTLY back where it was, the POI shift is pretty sad.
in a .264" bore, dummy? :-( By the timeyou allow .005" of slip fit for a barrel liner, the wall thickness could be at most .018". That would be a REALLY sturdy thing to have with you in the field. the .22 unit for the 223 needs no barrel liner, so it is quite sturdy indeed. you AINT carrying an entire spare upper receiver group in the field, dummy. A 3/4 lbs, 10" long .22 unit, however, is quite feasible to always have with you, and the caliber swap takes only 20 seconds, and the accuracy and POI are quite acceptable for foraging. The accuracy of the 22 units for the .30 AK basically suck, and if you don't get the barrel liner EXACTLY back where it was, the POI shift is pretty sad.