I've used the Mega Meats for the last few years. I really like them, but just like Bump79 said...I think you need a little horsepower behind them. 505gr arrow rolling around 280FPS...used on a big ass hog (roughly 600lbs, heart shot at 30yds,buried to opposite side ribs), corsican ram, many white tails, a orxy bull, a NM black bear...all worked great and they open a giant hole. I did have a jacked up shoulder for one season and dropped the bow weight down to 60lbs. That set up did not pass through deer. It worked and the few I shot died pretty quick but I did not get the pass throughs I was getting shooting 74lbs.