chetmarks
Yep, we pretty much only have 2-3 real choices in 45cal sabots. Im lucky my local shop carries them. I still think its a fine caliber for at least upto deer sized game and IMO it the best to shoot....just for fun.
I stocked up on 52cal sabots for mine so its a non issue and i already have plenty of 458 and 475 bullets. The only real negative is there are extremely few sub 300gr options but tons of 300gr bullets that work very well. Remington offer a 300gr for just $33/100 and is a proven killer.