This gun is the result of a 4 year experiment to see if we could get higher velocity out of the heavier 6mm bullets. Each year I built a different gun and shot it in 600 and 1000 yard competition. I was slowly able to make gains in velocity until I finally reached my goal of 3450 fps with the Sierra 107 grain Match King. I was actually able to get 3510 fps before I reached excessive presure signs but the gun shoots best at 3425 to 3450 fps. In the first four1000 yard matches I shot with this gun I was able to take 2nd place Light Rifle Agg. and 2nd place Light Rifle score at the Palimino Valley Gun Club match in Reno, NV. After the Reno match I spent some time doing a little load development since my brass was now all fire-formed. I then went to Colorado and took first place Heavy Gun Agg., first place 2 Gun Agg. and 2nd place Light Gun Agg. at the Colorado Rifle Club match in Byers, CO. At the NBRSA 1000 yard nationals at NRA Whittington Center in Raton, NM, I shot lousy (my problem not the gun's) but still managed to bring home two third place trophy's. One for third place heavy gun agg. and one for third place two gun agg. This gun went on to hold the NBRSA light class 1000 yard 6 target aggregate world record of 7.162" for 3 years.