Shooting a Bench Rest rifle at 300 Meters for groups, with Heavy Bench Class Hart Rifle. Caliber 308 Winchester. Shooting done in strong wind. Precision Bench Rest shooting is the ultimate in rifle accuracy. State of the art rifles and smiting, hand loaded ammunition, high quality rifle scopes, and a lot of practice shooting in the wind. Here Hafsteinn ??r Magn?sson shows how it is done. Rifle is Hart Heavy Bench class cal.308 Win. Hart Rifle Barrel. MARKS scope 10x-60x . Handload, Bullet Sierra 135 BT. Load Norma 201 47.5 grains CCI primer.