I thought this was a great new powder...Unfortunately, Colorado (and I understand a couple of other states) does not allow sabots and the 50cal. full diameter conicals are all in the 400-500 gr range (at least the ones I would use on an elk)...the BH209 website states it's :!: not for use with bullets over 350 gr :!: ...Just an FYI to anyone shooting the heaveir bullets...Be careful!!!