I just remembered i had this video

325gr FTX 2190fps 254gr retained weight.


BTW i ran the .475 375gr through a couple twist calculators. Around 1850fps is the minimum needed to stabilize a 375gr 1.2" copper bullet in a 1-26 twist. I used the actual bullet diameter and not the sabot diameter. I supposed you could add about 13gr for the sabot and use .520 for the diameter too.