I have killed several birds with that combo out of a 24" barrel and RR .660. It averages around 156 in the 10. I just got my Trulock for Feds and today it put 196 in the ten so its the new goto.
No doubt the hevi 13 6s have a 3/8s higher payload and pattern in the 200s in the same set up but at 1090 and 13gm/cc versus 1300 fps and the 15gm/cc of the Feds ballistacally speaking they don't have the same umphh. I am always the guy that wants the very best for an ethical kill outside of my preventable human error and I always try to remove the variables. To me that means that my equipment should never be the weak link. I want the maximum opportunity to finish at a range I would never take the first shot at if that makes sense.