Quote Originally Posted by spaniel View Post
Most likely your scope took a dump. Switch to a known good scope. Sounds just like when one of my Bushnells went. Some days it would shoot, then I'd adjust it, it would do weird things, then eventually settle down and group again. Internal springs get weak.

Alternatively, some guns lose it when they get too dirty.
There needs to be an easy and completely definitive way to know if a scope is bad. So frustrating. And given that both scopes I've tried are well-tested on 50 BMG rifles, it shouldn't be a problem.

Yeah, I haven't done more than a BoreSnake so I'm starting a thorough cleaning now.

I'm surprised no one has pointed a finger at the stock, it feels cheap and nasty and highly suspicious. But I don't normally run laminate stocks so I wouldn't know.