Zeroed in at 25 yards but once at the range NOT even on the cardboard backround much less the target at 100 yards (seemed to be at least 14 inches hight). Nice idea but doesn't work.
I have several of these bore sighters and they work well. You can get a scope sighted very close in the garage and save time at the range or at deer camp.
you must remember nothing you buy to put in your bore is going to be "dead on", every bullet shoots different. having said that this is a great product. if it takes you more than 4 shot to zero your rifle after using this product then something is wrong.
Very unhappy with 25-06/30-06 and 223 caliber. Zeroed in at 25 yards 16" low at 100 yards. 223 was 9" right. Barely hit on the target. 7mm within a few inches.