can anyone tell me how well the 60grn SSS loads group through a 1:16 twist bbl?

TIA

through typical rimfires - Kimber 82, Winchester 52b, H&R model 12 (?-I just shoot the thing) for example, SSS is on the wrong side of that ragged edge.

With a Ceiner conversion on an AR 1/8 barrel I was getting at 100 yards groups a bit over 1" wide and about 5" tall.  This stuff has potential, enough to build an upper just to shoot it.

I have a 1/12 .224 barrel blank I was going to turn into a 20" RF upper to work on this ammo.  Seems to be the right twist, but I have not checked it out or asked around.  It looked *great* till I made a pretty gross machining error, and it will go into the barrel pile for that gatling gun I will start someday. Way too little time and have other projects.

keyholes at 50yds out of a 1/16. aguila says a 1/9.5 is propper. my next ar project is a dedicated .22lr upper just for shooting that round.