OK I screwed one up, its my fault, now how do I fix it? I installed a 20 MOA rail on my 10/22 target rifle shot great with lapua ammo .5 at 50yds , then went to slinging them all over the paper, thought it needed cleaning, and to my supprise the rail was loose. took her apart and the threads came out with 3 of the screws. Now what do I do? i dug around and found a set of leupold rifleman rings. the top screws look similar but bigger, anyone know what thread this is. maybe I can retap the reciever and use these. I am totally sick only 1 box of ammo through her.