I tried a drop of Loctite on the back of the sight/barrel, but it didn't stick. Maybe the barrel wasn't clean enough, or the Loctite was too old. Should I try it again, or is there a better way to secure the sight once you get it zeroed? I'm not keen on the aftermarket sights I've seen for it, and I don't want to mount a scope on this rifle. Any suggestions would be appreciated! Thanks!