For sure, all of the ammo that I shoot is subsonic, but I pretty well only shoot bolt guns so the action isn't the problem, well I can't say that sometimes the action (me) IS the problem. Blazer is bulk stuff made by CCI, the issue is usually the thick waxy lube, more prominent usually in 'match chambers'. But semi-auto is far more finicky, search for some PRS 'Ruger 10-22' shooters comments and see what issues they have.
There are also 'semi-auto match' rounds, but you might be just better off with 'mini-mags' or Federal bulk if you are just shooting for hunting as I would want more 'lethal power' if complete precision isn't the main option. But I would also stay away from 'stinger ammo'
Yeah - from what I read, Stingers are buffer busters in the old Marlins.
I've had a few bolt .22s... and one of them was doing well within 1" at 50 yards with CCI SV. But I just really love shooting that 989. It's a reminiscence thing - it was the first rifle I used to hunt squirrels a long time ago.
Cheers,
Marlin989