+ 10 on the posi-line rings, they work very well and make up for gunsmith malfunctions with scope mount holes that are not quite right, and I like bushnell ( formally Bausch and Lomb ) 3000, 3200 - 4000, 4200 series scopes, a lot of scope for the money. I think they are a hard value, but a little long in some applications, but high quality none the less.