The BC on all these is on Hornady's website...The .430 in 300gr is .245...

Of the 3 that I shot with this bullet last year, 2 dropped, one was to a high shoulder shot...One I hit right on the elbow, the bullet shatter the leg and heart and he 2 wheeled for maybe 10 steps...

As far as a bullet fragmenting...I've seen this in several other bullets as well, both muzzleloading and centerfires...Those fragments destroy tissue as well...The worse bullet I ever used was a .243 100gr Remington Premium that bullet would pass through and leave a hole the size of a nickle...Deer ran on lungs shots 125-150 yards...With a plain jane CoreLokt, they usually run 30-60 yards with the same lung shots...

XTPs are plenty tough for any whitetail you'll run across...Especially if you stick with velocities in the 1600-1900 range...Many of us don't care for ultra high velocities, just isn't necessary...