Sorry, see ya changed your mind. Now Im not gonna try and tell you to use a lighter XTP, but why do you need 300gr's? I get complete penetration even out to 175yds, but what I like the most is they fly flatter than the 300gr's. And I have never lost a Deer hit with the 240gr XTP Mags, they do the Job I Guarantee it. What I like about them and I use 110gr's of Pyro RS, is I can sight in at 2" High at 50 and still be center Lungs at 125, and out to 175 Im in or above the Heart still. Perfect!