I posted this same reply in the hornady sst thread, but thought the topic was important enough to merit it's own thread.
I watched an interesting presentation on the mn dnr site about lead fragmentation. This is my first season switch from my 12 gauge using federal trubal slugs to a .270.
http://files.dnr.state.mn.us/fish_wildl ... /index.htm
I have chosen to use the blue box federal in 130 grains. I have a lot of range time and comfortable with shooting it. Have any of you choose different factory ammo that fragments less? Their study showed that bonded core, enclosed core and copper bullets fragmented less.