I stopped at KSA today ...handled actions, both in stock and loose. I have a buddy with one, shooting a KSA barrel that he had the bore nitride'd as a "test" out of curiosity. So far only a couple of 5 shot groups @ 100m while fire forming brass (Grendel) came in mid threes which should get better once brass is loaded again. Mike said he welcomes telephone inquiry's / visits to the shop.
EDIT: I would have a KSA action in a heartbeat except I haven’t convinced myself that I really need more than the six aftermarkets I currently build on..