I've never put any stock in this before, this past weekend we had a UBR match at 200 and 300 meters, my first relay I shot the only 64 posted for the match, but the 2nd -4th relay I was in the 50s. Granted I'm new (2nd year) but dang it sucks to not trust your equipment or be able to read the wind!! (probably my biggest problem). I have a 2nd NF C513 that I'm thinking of putting on this gun just for giggles and seeing what it does or if I just suck at wind reading.Another tip, buy a scope checker and use it often....