In another thread there was a discussion about using Hornady XTP in a Muzzleloader. Sounded like a great idea to me as traditional muzzleloading bullets can be very expensive. It was discussed that this particular bullet might not do well at velocities above say 2000 FPS. Can anybody hazard a guess as to the maximum FPS with this bullet or another one with similiar characteristics. From my personal experience I have pushed 180 grain XTPs from a .44 Mag very hard and they always held up well. Any thoughts??