I was in search of a all round load for my .223, and was suggested the 63gr sierra. I'm rather glad I gave it a try.
My favorite load:
63 gr. Sierra Semi-Point 26.5 gr. RL-15 CCI 400
Groups much under a inch in my rifle.
I really like this load, haven't shot anything with it yet but will not hesitate on anything in Oklahoma up to deer/hogs with this load.
What twist rate on your barrel? Mine is a 1 in 12". Wish it was more like 1 in 9 or 1 in 10.