I don't know....some times you just know it's a miss.
Here is what happend to me last weekend. I let someone use my gun during the week. He shot his deer at around 575 yards.....no problems.
Saturday I am fed up with hunting for heads, and ,since it was the last weekend, I decided to kill a "rat". My rat showed up at about 925 yards across from my "shootin shack". Broadside. Exactly 925. A little breezy, but .... Any way....Shot 1...didn't even get a reaction. Shot 2....same......Shot 3.......shot four....
.... Now, I am boiling mad.....and very confused. I just quit shooting. Watched him for about 20 min.....got even madder....and went out and got my match gun. By then, the deer went back to chasing does and didn't give me a decent shot, so I knew he wasn't hit. I took my hunting gun, set it up on my rest, and shot at my target at 300 yards...hit 10 moa high (30 inches). After his job was done, he spun the dial the wrong way.....*%#)^%@!%$
At least I figgured out the problem, which, I "confermed" about 2 hours later
...this time at a touch over 800. Same deer, different outcome.
But, I knew for a fact that I didn't touch that deer the first time around. But, since I wasn't looking eight friggen feet over his back, I couldn't see my hits, either.