I had it professionally mounted and bore-sighted by a local gunsmith.
I put 10 rounds through it at 25 yards and got it darn close to zero. The first 3 shots were 2 inches down and 2 inches right. I clicked it 16 up and 16 left. the next group of 3 were 1 inch down and about 1 inch right. I then clicked up 8 and 4 left. The third group of 3 had 2 shots on and 1/2 right, with the 3rd shot 2 inches low and 1/2 inch right. So I got it pretty close. I had 1 shell left and put it 1 inch low and 1 1/4 left. I must have flinched. Anyway, I only had 10 shells and had to check out the scope and rifle combo.
I probably will buy some shells and head back out this weekend to get it on.