Me either using trap loads - #7.5 I load myself. I guess after reading finding a load that has the same velocity might make it more accurate.
But like I said why waste the Turkey loads and beat yourself up?
I used Trap loads, and got my self on paper starting at 10 yards. I used a quarter sized orange paper dot. Once I was consistently Obliterating the quarter sized off/through my target, I moved back to 20 yards and tried again. I didn't have the luxury of a laser bore sight like I do today. Now I use that before I shoot.
Then at 20 I went to my chosen turkey load and did a bit of final adjustment if any.
That was back in 2003 for my 11-87. Have not touched that scope yet. Pattern each yr but no scope adjustment needed so far.

JW