7.62...I appreciate the advice. I ended up opening them up a little more and then used a round needle file to make that perfect fit. I took a little while, but the #8 screws I'm using to temporarily hold them fit nice and snug The only problem that I've run into is that after I tightened down the front trunnion from all of the holes, it actually moved my fron trunnion a little forward. Now, it protrudes from the front of my receiver a hair or two. When you place the handguard in place, it is actually pushing it out a little. Prior to fitting the screws, everything was fine. It makes me want to believe, my holes weren't perfect and i might consider "egging" the hole a little toward the rear of the receiver to move the trunnion back a little. Or, I guess I could grind that little bit of trunnion off that protrudes and repaint. What do you gusy think is going on, and what would you do?