26 pellets in 10" at 35 yards is good enough? Maybe if you rely on the golden pellet to find the brain. 26 pellets in a 10 inch circle is 1 pellet for every 3 square inches. A quick measurement of my turkey target give 4.3 square inches covered by the spine and brain, so the expected value for the number of pellets in an immediately vital zone with that pattern is 1.4 pellets. Of course that is if the pellets are absolutely uniformly distributed throughout the circle. It's possible to kill a turkey with that pattern at 35 yards. And you could win $500 on your next scratch ticket too.
My own minimum is 100 in 10" with even distribution. Whatever range up to 40 yards produces that is my ethical limit. That's enough pellets so that I am virtually assured of getting multiple lethal hits if my aim is true. Anything less is showing disrespect for a fine animal. Remember that when you shoot a turkey with a shotgun at a reasonable range and "miss" you seldom really miss. You just put pellets somewhere into the bird that is not immediately lethal.
That shotgun and load combination may be ethical to use at 20 yards and maybe even at 25 yards, but not at 35 yards and beyond.
