My two sons were hunting merriams last spring, and had a group of 4 gobblers sound off over 300 times, before they quit counting.

Called in a bird a couple years ago that gobbled constantly from before daylight till 9:30, when we killed him. Didn't count, but it had to have been a couple hundred or more.

I don't think I've ever heard more than 6 gobbling at once.

Hal