Thanks Buck for checking in. Since last posting, I have had the opportunity to experiment a bit, but then the Christmas holidays slowed me down.
I switched to the Diamondback just to try to another scope and see if it made a difference. Seeing as I think it did, that is good info. I have been looking at the Covenant and wondering what they are like. Good pricing on them.
"The RAR should be able to get you
consistently under 1" groups of 5-shots @ 50 yds. My B22 consistently groups 1/2 to 3/4".
That is good to know. I have one page of targets (5 circles) where the groups are all under 1 inch but I would not say it is consistent.
I have an Anshcutz rifle coming this week. Eek! and have a Sightron x32 already for it. I decided on the bench gun scope before the gun. I think I will be selling the Ruger American with one of the two scopes I have, eventually. I bought it for bird hunting and target shooting. I did eat the odd bird and did hit some targets but I don't hunt much anymore. I do seem to really be enjoying the time at the range so decided to get a little more serious there. And the guys in the Benchrest club are a great bunch to hang with.
You mentioned trying a better rest/sled. I did exactly that last time out. A member lent me his Rock BR to try and it made a huge difference. I actually got decent groups (decent for me to date). Being an amateur hobby machinist, I am hoping to build something of course. Who would have thought retirement could be so busy!
As to ammo, I think that I read very early on that certain rifles like certain bullets. I think that I put too much emphasis on that data. Nice that you put it into perspective as to
when I should be exploring it. I think I was coming around to that. I have been playing with many many different ammos but now realize that that is probably one of the last things I should be doing. I have so many other things influencing my groups that ammo is probably the least of my issues right now

Getting some of the other points down better, then worry about what a certain ammo does makes more sense, in hindsight.
I have also learned to appreciate trigger pull weight. After reading some on it, and then shooting the member's rifle (probably much less than 1lb weight), I see what a difference it can make. I tried lightening mine a bit as it is adjustable but don't have a gauge yet so only did a small adjustment. I can appreciate now, that being on a bipod, the force it takes to pull the trigger could easily affect my point of impact.
So, all in all, fun learning and seeing improvement.
Thanks
Shawn