It shouldn't be an issue. If the screw is messed up, you ca purchase a new.one that takes about a minute to replace. I've never had an issue with it and the rifle is actually a joy to shoot.
Marvelous. And thanks!
Bob
"It is said, 'Go not to the elves for counsel for they will say both no and yes.' "
Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring