I love my Ruger 5.7 it takes a little to get used to but once your dialed it's a tac driver it's allot like my pmr30 the speed of that little round is crazy
I have the 10-22 take down in stainless I love it it's accurate enough it's not perfect by no means but what 22 is unless your running match grade ammo
I've put it in my back pack while bird hunting and it's killed a few gophers and a coyote with no problems
Our salesman runs a 6.6 gasser he has 40k or so on it so far and loves it I run the 6.6 Duramax pulling a 35ft gooseneck I have 26k on it so far and also love it the put the dodges of the same style to shame I can't say anything about Ford's. We have had lots of problems with the 6.4 hemies and...
I use glucosamine on my older dogs it helps with the stiffness I also use Bayer low dose aspirin the night after the hunt keep them hydrated and they will be fine. Old dogs still love to hunt just need to keep walks shorter and rests between longer but it's worth every minute.