I used two USFT Hunter models. Both were designed by me, and constructed by Mac1, then tuned and heavily modified by me specifically for this match. Here are some specs:
Light Varmint rifle: USFT Hunter, 24" airtube, 3" wide X 1" thick milled from solid aluminum forend rail, 23" Lothar Walther .177 barrel, Leupold fixed 36X target scope, using a 1100psi air charge good for 70+ accurate shots non-regulated. I used un-lubed, but weighed (thanks Wayne) JSB 7.9gr pellets from Pyramid Air. the gun weighed 9lbs 4oz, and the scope with Leupold QD mounts weighed 1lb 2oz. Velocity was 790-800fps using the 7.9gr pellets.
Heavy Varmint rifle: USFT Hunter, 30" airtube, 3" wide X 1" thick milled from solid aluminum forend rail, 25" Lothar Wather barrel, Leupold fixed 24X target scope, using a 1400psi air charge good for 80+ accurate shots non-regulated. I used Krytec_lubed, weighed (thanks Wayne) Crosman Premier die#2 10.5 pellets graciously donated by "BikerScum" and Tony Trojan". The gun weighed 12lbs 2oz, and the scope with Leupold QD mounts weighed 1lb 3oz. Velocity was 900-910fps using the 10.5gr pellets.
OOPS, I forgot to add some very important items:
I used two Graham windflags and two of Marvin Renold's unigue uppy/downy units. A huge help!
I also used a joystick type front rest by Shadetree, fitted with a Randolph Machine MKII "bag setup" on a homebuilt flat plate base. At the rear I used an Edgewood mini-gator, high, with small ears.