Just spend about 80$ for the VQ hammer and PC sear and you'll get a 2 lbs .07 Oz ( 10 pull average ) ... Thats what I do to all my 10/22's
brownells.com/rifle-parts/triggers-parts/sear-parts/sears/10-22-competition-sear-prod25042.aspx
brownells.com/userdocs/products/p_930122010_1.jpg
brownells.com/rifle-parts/triggers-parts/triggers/ruger-10-22-aluminum-trigger-prod32478.aspx
brownells.com/rifle-parts/triggers-parts/sear-parts/sears/10-22-competition-sear-prod25042.aspx
brownells.com/userdocs/products/p_930122010_1.jpg
brownells.com/rifle-parts/triggers-parts/triggers/ruger-10-22-aluminum-trigger-prod32478.aspx