I have around a dozen Ruger Americans and the only one that I've haven't found a MOA or better load for is the 22-250.
I don't find the factory trigger objectionable, but if you don't like it, I'd consider installing an M-Carbo trigger spring kit before going all in on a Timney unit. I have factory triggers, modified factory triggers, and a couple of Timneys. The Timneys are better, but are they $130 better?
I find the comb height to be a little low for me, so I have installed Beartooth comb risers on a couple of the RAR-Ps. Not a need to have, more of a nice to have.
