I switched to Hevi 13 about 5 yrs. ago and have been pleased with it, this year I gave the 3.5" #7's a try in my 835 and w/ a Jellyhead in .690 I am getting consistent patterns of 240-250 in a 10" circle. I could go tighter w/ the choke but the Jellyhead throws an even pattern that I like, but I am confident out to 45-50 yrds. if I misjudge distance. If your happy w/ lead then keep shooting it, only reason i switched was because I was low on lead loads and got a good deal on Hevi-13.