I know this is off topic, but I tried the o-ring accurizing technique for Handi's on my Ruger 10/22. My 50 yd. groups went from 0.9" to 0.4" in target loads (i fired 3, 5 shot groups each with Federal Gold Medals and Remington Target Loads. When the gun was stock i was lucky to put 5 rounds inside of 1.5" at 50 yds. I put the o-ring over the screw that attaches the stock and receiver together. The barrel is now free floated all the way back to the receiver. I sanded down the original stock much earlier to create a sporterized stock with natural finish, added all match grade components to the trigger group, and polished the bore with JP's bore paste. I was a bit worried accuracy would be bad because i've read that the stock barrel does best when contacting the end of the stock. not in my gun anyway...
It is probably not surprising that i was able to attain these groups with target ammo at 50 yds, but i was using a 3 MOA BSA red dot scope when i did it!!! I am now shopping for a scope worthy of the gun, thinking a BSA Contender 4 x 14 x 50 or a Platinum grade 4 x 24 x 44. Any opinions on these two choices.