My friend and I both got bears last week. Both got a pass through with Rocket Slammerheads. Both bears went less than 30 yds. His was a slower Excalibur xbow at 5 yds and mine a Stryker at 38 yds. I think this was the most blood I've ever seen on an arrowed animal.
His shot when he dressed it out the arrow actually went through the heart. My arrow went off the hill side and I couldn't find it. 2 for 2 and dropping within sight of the point of the hit is about all you can ask for.