Great scope with one flaw - Athlon Optics Helos BTR Gen II 4-20x50 30mm Tube Rifle Scope, FFP

This is a great scope in all aspects with one exception, the brighter you turn the reticle the red color seems to create splatter and on high is almost impossible to tell what your hash marks are. 3 is about as high as you can go before the splatter starts. Like the scope but won't be buying another one because of this issue.