The magnum blend is amazing stuff. I set up a Mossberg 935 with a Primos Jellyhead tube for my Dad. Shooting the magnum blend, it throws an excellent pattern out to 60 yards. I think the farthest shot we have taken on a turkey was about 40, and it flattens them.
The old gun I use the most on turkeys loves Winchester #4s and I just don't want to change anything with it. However, I can tell you that for any new gun that comes my way, magnum blend will be the first thing I try.
Good luck.