I have harvested 8 or 9 with the Ruger variation. Used the 250 sierra, 235 ttsx, 270 tsx, and the 260 np. All worked fine and shot well. Only ever recovered 1 slug (270 tsx) from a follow up shot that ran nearly the length of the bull. I finally settled on the 260 partition as its pretty hard to beat and shoots the best of the bunch in my rifle.
That's good to hear. I plan on trying a 260gr. nosler partition this year, if the 338 doesn't get him first