Sabot choices dont seem to be a big deal. Most folks like either the MMP tan or the Harvester light blue smooth. Yours will tell you which one it likes. In a tighter bore like a .451 they both seem to work fine depending on the load.

Plenty of 180-200gr bullets and some start at about $18 per 100 instead of 50 or less. Cheap total jacketed 180-220gr plinkers are about $65 per 500. Nosler has 180gr JHPs for $40/250.

Shoot XTPs and GoldDots for normal use and Lehigh/Barnes/SSTs for higher end loads. Ive shot conicals upto 360gr in a 1-28 with excellent accuracy...actually my best 100 yard group is with a 360gr conical. It went into just over a half inch.

Velocity is usually a little higher in a 45 vs a 50 with the same amount of powder and bullet weight. Mine will get a 250-260gr moving 1950fps with about 100grs of loose.

Whats not to love?