EmptorMaven asks why is range of 60 gr. ammunition so limited and where are the guns and barrels with the 1:12 rate of twist required to accuracy shoot these long 60 gr. bullets. From EmptorMaven’s blog …

.22LR is by far the most popular consumer cartridge. Every .22LR shooter with a silencer, and many without, would love to be able to buy reliable and accurate 60gr+ bullets, as well as threaded barrels with sufficient twist rates to stabilize them.

So my open question to the firearms industry is: Where are the reputable bullet manufacturers selling cases of plinking, varmint, and match-grade 60gr .22LR ammunition? And where in the vast marketplace of .22LR guns and parts are the 1:12 twist .22LR barrels with threaded muzzles to shoot those bullets?

Aguila 60 grain SSS Sniper Subsonic. Image from MidwayUSA

I think your only options right now are the Aguila 60 grain SSS Sniper Subsonic and, if you want anything resembling accuracy, a Volquartsen barrel for the Ruger 10/22. I imagine a lot of work would needed to be done on the 10/22 action to ensure if would cycle.