Me, neither, 10 shot groups are under an inch with a max load and the 35gr Vmax, that's after 40 shots without cleaning, I load 50 rounds at a time and shoot em all on each range visit. It's all I've used in my 500S&W, never noticed an issue with it after 2 range trips 30+ rounds each. I like it so much, I loaded for the 45 Colt with it too, will find out tomorrow how it does.
Tim