Ran over to the nice covered range at lunch and got everything set up. Then the dump trucks you see on the left showed up and shut me down.
So I had to move from the covered range with concrete benches and padded chairs to this. I used a range bag full of a first aid kit and shotgun shell caddies and a beach towel for my front rest and a wife-made pinto bean rear bag. The raincoat kept most of the crushed granite off / out of me. *Different rifle in this pic*
The rifle is a Bluedreaux-built upper and lower. Vltor A5 receiver extension with A5H3 buffer Geissele S3G trigger 18" rifle gas BCM SS barrel 15" Troy rail Surefire brake The scope is a Burris FF2 3-9 in some unknown make rings that are definitely not high enough.
Ammo was Atlanta Arms & Ammo 77grain BTHP.
First group--1 1/4"
Adjusted 10 clicks down and 4 clicks left--1 3/8"
1 4/16 + 1 6/16" = 1 10/16 averaged to 1 5/16", which I believe is 1.31".