Merle1948 said:
Yes, I got good groups, and I might be able to "adjust" the sights. Windage is easy, but elevation is not. The real problem here is that .22 ammo from the same manufacturer does vary from time to time. I learned the hard way that each lot may very well have a different POI, and even be more (or less) accurate than a previous lot. When I shot silhouette, I would always buy a years supply from a proven good lot.
This month I am shooting in a Postal Match with some pretty small targets. A target the size of a bumble bee at 25 ft doesn't give much room for error.
Of course this isn't relevant to casual plinking, but I'm trying for pretty serious (and repeatable) accuracy. Thus I've tried pretty much every .22 ammo that is reasonably available. All in all, adjustable sights are necessary for my use - otherwise the gun becomes a plinker.
Two more mods you can make that will help a lot(if you haven't already done them) is to at least put in a Volquartsen Drop in Sear(or the entire trigger kit). Should take your trigger pull down to about to 2lbs. to 2.5lbs. Also install a trigger with an over travel stop. These two items, along with the adjustable rear sight, will help your shooting a lot. You already have learned one very important rule with firearms, every firearm has a rule to itself as to what ammo it likes/dislikes---and this like/dislike can very from lot no. to lot no. with the same very same ammo brand.
One last question, have you ever shot a Ruger MKII or MKIII with a 5 1/2 inch bull barrel with thumb rest grips? IMHO, that really makes a good target pistol when you also have the Volquartsen Drop in Sear and the Trigger installed on it.
Here's a link to Rimfire Sports & Custom(I have used them before---good service). You will have to scroll down a little over half the page to find the sear, hammer and kits:
http://www.rimfiresports.com/merchant.mv?Screen=CTGY&Store_Code=RSC&Category_Code=VC2