Nope Bob can' t say that I have!I' ve shot the same reload for about the last 15 years out of my 10gauge and its all lead #4' s!Came up with the recipe myself and know to a tee what its capable of out of my Ithica!Cant improve anything when there laying in the grass so consequently as I see new loads coming out every year I ask myself why bother trying to fix something that aint broke?