...my AR has a 1:8 twist. Bad for stabilizing .22 I assume?
I wouldn't say bad, maybe not "optimal"
maybe minute of rabbit or beer can
many have the faster twists and still have tons of fun :-)
also good trigger-time for those new to the platform

IIRC, mini-mags, stingers and the hyper-velocity rounds cycle the best,
the subs are single shot....



not a must-have, but definitely high on the list!
ymmv