I too have a Killer innovations brake,today we range tested my build for the first time,I couldn't be happier,the gun shoots far better than my ability,the guy who wound it together for me shot a 1/2 inch group at 200 meters in a slight breeze with 50 grain factory fioochi ammo.My 200 meter group was inch and half.We changed up at the end of the day and moved to the 100 yard range,he shot a 3/8 group and I peppered a 10 shot group of an inch or so.I know what you mean about the heat, the mirage factor was high on the 200 meter range I had a real hard time ignoring it.All I said after every shot was "Well theres a dead coyote".I'd say your rig is pretty wicked looking.
