Thanks all for the interesting posts.  One thing I have noticed is how enthusiastic some of you are about hunting turks.
50 yds is a long shot.
Pappy,  I guided some hunters for Merriams birds when I lived in Nebr.  They brought "turkey guns" with "turkey chokes". First morning one of them missed a dandy tom at 16 yds.   
When we patterned the gun at 16 yds the "hole" was smaller than a grapefruit.  They were astounded.  They had only considered the pattern at 35-45 yds and thought it would be 18 inches acrossed the pattern  from right out of the barrel to 45 yds.