Hi Harry,
The ring that has the 3 hit in it is 1". I have this little trick when shooting off my folding sawhorse. I have a piece of nylon strap that is 1 1/4" wide...I have a loop in both ends of it.
I use a rolled up blanket to put on the sawhorse and rest the gun on. Then I slide one of the loops over the gun to where it right up to the end of the scope rail. When I am ready to take a shot, I put my left foot in the other loop and apply downward pressure so that the gun doesn't jump (muzzle rise) but a SUPER TINY of a bit. I keep the crosshairs/mildots on target by using my left hand at the forestock and I don't have hardly any backward pressure against my shoulder. Doing all of this allows the gun to move as it wants to where the recoil is concerned (foward N back), but the muzzle climb is MASSIVLEY reduced.
Look here at the link below...those results are when I was sitting on a bucket and resting my left elbow on my left knee with my left palm supporting the forestock...ACTUALLY, to me, shooting this way is MUCH harder and I honestly feel like the results are more impressive...IMO.
http://www.network54.com/Forum/184474/thread/1207285001/last-1207502985/Attn-+Johannis+-+115+yard+test+with+.22+cal.+350+Mag
But I am satisfied with the results shown above in this post. I got all but the last 3 shots off when there was no wind in the canyon. I stopped for a couple of smokes and a coffee and when I got back to taking the last 3 shots, the frigg'en wind started to kick up. The canyon that I shoot in blocks a LOT of the wind, but there was still more than enough at that distance to KILL my last 3 shots....I was Sooooooooooooooooooooooooooooooooooooo pissed and chain smoked a few on the short drive home.
Anyway, try the "strap trick"...an old fella showed me that trick, oh God, 25 years or so ago when I used to shoot off this bench at his property with his son. The bench was a home made picnic bench that had wide spaces between the slats of the table top....he had the loop that he used his foot in pushed down in between 2 of the slats with the one that he put his gun through sticking up out of the top with a rolled up blanket as a soft-rest for the gun . He could hit ground squirrles that had burrows on the side and top of this little dirt knoll at nutty long distances with his Ruger 1022 that had a 18x (max mag) scope when they would pop up for a look around. He used to shoot right handed but he would use his left hand to steady the butt of the stock while it was up against his shoulder.
It is dark outside right now, but tomorrow I'll set up my sawhorse in the back yard with the strap and the gun and take a picture so that you can see. I know that they still sell those sawhorses at home improvement centers like Home Depot and Lowe’s...they are made by Black&Decker...the top has 2 handles that you crank to make the top spread apart (to clamp things in when working)....you'll see how it is in the pics.
-Curtis