Question for distguitar,
You mentioned Colibri ammo for your 22lr. Have you had any trouble with it not ejecting properly or jamming your semiauto? I personally have a Remington Mod. 597 22LR and have tried Remingtons Sub-sonic loads. Not as quiet as expected and lots of trouble with ejection and jamming. Let me know please. I'd like to give them a try. I own a Marlin 60 as well!
Thanks,
Leaveonlygutpiles