10/22 accuracy
My wife and I shoot RF Silhouette and have a fondness for Ruger 10/22's. I have built 5 custom Rugers now and owned others. Love the guns, but shoot Anshcutz 1712's for serious competition.
I have found the single most significant improvement in accuracy came from properly bedding the action/barrel. Go over to Rimfire Central and go into the Tips & Tricks Section for very good step-by-step instructions with pictures for bedding.
Next step of course the barrel. I was somewhat disappointed with a Shilen barrel accuracy - good, but not wonderful for the cost. I have found that Green Mountain barrels in 18" both SS and carbon steel shoot wonderfully and are a great buy. I have mounted scopes using bases on both the barrel and the action and cannot find any difference in accuracy. BTW, the Green Mountain barrel can be had tapped for the barrel mounted bases.
Next look for a real target trigger for the gun as the factory trigger design is just not going to reliably get below 2.5 pounds (I know I am going to hear about this statement). The KIDD trigger is THE ONE to get.
You will find that the 10/22 will start having ejection problems after a while and it is caused by the factory extractor - it is soft and wears. Also the aftermarket match chambered barrels are much "tighter" and will cause the factory extractors to start to fail even sooner. Get a Volquartsen or Clark extractor and the problems should go away.
I would recommend a CPC bolt as they are set for proper head space, come with hardened and tuned extractors, have a pinned firing pin (the factory design caused the firing pin to be a bit sloppy) and also are machine turned on the side which is a really nice touch.
Now you have spend a ton of money on a Ruger 10/22 that will shoot with a good Anschutz 64 actioned rifle.
Is it worth it, that is up to you.
George