I'm definitely a +1 on the go smaller category. Got a bad shoulder and neck myself, so I sold off all the bigger stuff, and retooled the collection with smaller, light recoiling cartridges several years ago.
300 Blackout, 6.5 Grendel, 6ARC, 250 Savage, 30-30/303 Sav with light bullets, and most handgun cartridge rifles (with the exception of the larger bore magnums) are a blast to shoot without beating yourself up when you pull the trigger.
