What is the theoretical precision of a riflescope.

[jlow]

Like I mentioned it earlier, I don't doubt wind can play a role. But when you groups open up in dead calm conditions and some of group size increase is related to changes in verticals, you can understand why I don't completely buy the wind explanation.

 

[LHSmith]

Last thought on the subject :"Dead calm" as determined by ?.... A good read for you would be Tony Boyer's and Mike Ratigan's books on extreme rifle accuracy.....they both avoid shooting dead calm conditions in a match for very good reason - slow moving mirage. Look it up.

 

[jlow]

These would be early morning shoots before the wind picks up. Of course, if you want to enlighten me on why not to shoot on dead calm conditions, I am always happy to learn something new. If it is about mirage, no significant mirage on those days.