Just picked this up the other day. Has the 24 inch fluted heavy barrel which is (no surprise) pretty damn heavy. Rifle came with the factory installed rail which is stamped "20 MOA". I know that this particular rail is intended more for longer ranges (600+ yards?) but I probably won't be close to that. I can see my longest shot at maybe 250-300 yards. Is the 20 MOA rail suitable for those distances or should it be replaced?