I am shooting lighter bullets because they kick less. kill better, shoot flatter. The peneration of the 150 interbond is more than good enough for me. I was worried about the bullet holding up at those speeds, so I did a small test. I shot the 150 interbonds into 1.5 feet of dry newspaper I found two of them and they retained 75 percent of their weight. The third went through. When I shot my deer with the 30 laupa we compared the exit holes to 338-378 mags with 300 grain sierra's. The big 33's with 300's just make fist sized holes. One shot with 33-378 ran 120 yards with a good shot. The match bullets just don't open up enough. i also shot 7 wsm with 180 bergers and have terrible results hunting with the bergers. With deer they just bore holes through them, with most requiring a second shot. I believe that from 0-800 yards speed kills. Reed