I have a 50 caliber inline muzzleloader, I am looking for the most accurate 300 grain bullet available. I now shoot Hornady sabots in 300 grain. I shot a buck on jan. 26th at 40 yards with 100 grain pyrodex pellets. The shot was well placed in the shoulder direct broadside. The buck flipped over on his back, stood up, and then slowly walked off. It was lightly raining and I pursued him after 30 minutes. There was no blood trail what-so-ever and therefore I wasn't able to find him. I am in search of the most devastating black powder bullet available. Any ideas???