Okay, first off, I think some of these ballistic programs are a bit on the retarded side. Now I am nowhere near the math guy my dad was but this one little rule doesn't escape me. From 100 to 200 yards the calculator says it will lose approximately 96fps. But from 200 to 300 yards it will only lose 69fps more? Complete horse crap there. It just doesn't work that way. Gravity and resistance of air doesn't let it. Now granted I do understand that the slower it is going, the less resistance it will have to air, but not that much. Momentum only works so hard. And that open hollow point as well as a fairly wide meplat is in no way whatsoever going to give it a 0.300 BC. I wouldn't mind testing this myself. 52bore, if you wouldn't mind sending a few for me to dial in where I can accurately put it through a chrony at 300 yards I'd be more than happy to oblige. Just to settle my curiosity. I would need a few to dial in though, chrony's are fairly expensive and I've already seen what a bullet does to one when someone chucks the shot. The old man was pretty pissed at himself. Kind of mad at me too for nearly falling down I was laughing so hard. But it was so damn funny. The stream of words coming from his mouth when he saw his $$$ chrony literally blow up was just hilarious. Just glad he taught me to duck at an early age. That backhand woulda hurt.
Now after saying all that, I am in no way saying that bullet wouldn't be a buck dropper. I've already said it would be a cold hammer to a deer. But I think at your launching speeds of 1298, 300 yards without a solid bone hit would be asking a bit much of it. I just don't think it would open at all on a non shoulder double lung. Granted I'm sure it would more than likely blow through both lungs and may even exit as that bullet has a lot of rear end to it. But you might be in for a bit of a tracking job. If you want to, PM me and Ill send you an address to send a few to. I'll get reading at 100, 200, and 300 and may even run a trap at all 3.