I recently purchased a Pro Hunter in .243, primarily for a woodchuck gun. I am loading it with 48.2 grains of w760 behind a 55 grain nosler ballistic tip. At 100 yards, I can touch all three holes. Is anyone else getting this kind of accuracy with their Pro Hunter? I am thinking of getting an '06 barrel for it for this years deer season. I have a bolt '06, but I really like how this thing shoots with the .243 barrel. Any problems with other calibers?