I have a T/C Encore.
As far as you saying they may require a boat tail, I guess I don't understand what you mean.

And I'm not required to shoot an all lead bullet. Here in Indiana we can shoot sabots or powerbelts or what ever as long as it is .45 in diameter. So us 50 caliber shooters don't have a problem but a lot of the 45 caliber Muzzleloader hunters can't use sabots.