I've got a Simmons target scope that is having "issues" with the vertical crosshair not wanting to move when you adjust it. You can tap on the turret all day long with a shell case to no avail. The crosshair will move AFTER you run 4 or 5 rounds of .308 Win. thru it so the crosshair ring's not totally locked up. Now here's the big question, can the adjustment screw for the internal ring be removed WITHOUT screwing up the scope. Seems like as long as I've been shooting I ought to know this but I've never really had many problems with my scopes. The scope's out of warranty so sending it to Bushnell's not really the resolution. I've got plenty of Kroil, just wondering how to get it in around the internal crosshair rings without losing the nitrogen or getting oil on the lens surfaces. Any ideas about how to fix this would really be appreciated.