sighted in my scope mount on my m44 today i looked down the barrel and set a laser level to set up the scout mount on it ..... fired at 20 yards adjusted @ 20 clicks up and right ... shot 2-3 more and adjusted ,a few times more,... i was worried this would not hold zero well im happy to say 30 shots later im shooting 1" groups with this old beast and the bore is rough looking ... shot 300 yards away and i have to say it held up to the blasting rifle yhis gun throws a ring of fire 21/2 feet around the barrel in the dusk ..it has quite a kick like a 30-06, but zero was exellent shot about a 6-7"pattern with 10 shots 300 yds away , good enough to hunt with .. wow my 1917 rifle in 3006 and this now which one to hunt with ... thats a delima i can live with