If a heavy rifle is not a problem for you then of course go for the weight. I use some of my heavier rifles when I am near the car.
You might consider a cartridge that does not kick as hard as a 30-06 with 180's.
The Decelerator recoil pads are fabulous.
I have not seen a soft pad like that on a new Ruger? Does that one have a thick, soft pad?
To steady your aim with a .22 auto pistol reach out with your other hand and support with your thumb and finger under it's front sight.