Reloader7RM,
I have a guy that runs a gun shop here in town... he does some custom reloading. He started loading that exact same homemade slug combination your talking about. I bought a box and I was getting shots at 75 yards into in 2-3" circle w/ Benelli SBE and Shaw barrel(admit not as good as the Federal / Barnes expanders, but 1/4 of the cost!) He sells them for $14 for a box of 20. I have probably 20 boxes bought... my boys and I will shoot these until there gone... probably year 2030!!! A great combinatoin for little money.