With that result it is a dead bird at 30 yards. Checking at several distances is a great idea. Don't forget to check "close". The only miss I have had in 40+ years came at about 8 yards. Pattern was more or less a 2 inch circle !!! I'd check at 10-20-30-40-50 yards just for the knowledge of what the gun is doing. And that is good advice to always use a life sized turkey target.