12-29-2011, 03:24 AM
600 yards is no problem with the 18" barrels that I've shot. Twist rates / brands have been 7.5 / Sabre Defence, 8.5 / Krieger, 8.75 / Satern, & 9 / BHW. Usually used 123gr Scenar and A-max bullets with muzzle velocity anywhere between 2450 and 2530 fps. In the absence of wind, 3-shots groups have been sub-MOA, using both factory and handloaded ammo (whichever the barrel had shown preference for).
Drifter

