So very true with the wind. The Mississippi delta is flat. Very flat but occasionally the wind settles. What wind there was that day was coming from the 7oclock. Could have been a few MPH in there. Usually are.
The app I used was the Ballistic AE app for the iphone. It shows 1.53"@425
Gun is a GAP 280AI with 168vld at 2800fps. 1/8 twist. 7"Dixie Precision Rifle Suppressor
I didn't think about the scope base. I have Kelby two piece dove tail bases and rings. I don't recall the gun and scope being out of line when shooting it. Perhaps I'll practice more and get a one piece base