I use a 14 inch Contender in 6.8 Remington SPC. That round was designed for a 16 inch barrel so a 14 inch barrel does not give much away. I am getting 2410 fps with Hornady 120 SST factory ammo. That gives me over 1000 ft-lbs out 225 yds., with 175 yd zero it is 2 inch PBR to 200 yds.