If quail, dove or waterfowl hunting, I might use a cheaper load. When it comes to turkey hunting where one shot is all you hope to get I'm not gonna go the cheap route.
I used the Hevi Magnum blend last year and it shot really well. If you don't want to spend too much maybe you can find a dealer that sells individual shells to pattern with. There is a dealer near us that does this and it allows me to pattern without having to purchase a full box. If they don't do this you should ask.