Ok the why only lead in sabots thread started this
7/16" round stock turned down to .430" .995" long, 5/16" concave point
263.5gr 80 gr. 777 T/C 44/50 sabot. Target at 50yds.
The cooler is 16" inside packed with magazines and paper filled with water soaked about 20 min. picture is of the last magazine.
The catch log is pine, bullet was at 8". I don't think penetration will be an issue, need to test for accuracy.
Only made one took 20min. Had to shoot it! No expansion measured .430" out of the log, could reuse it.
Shot to same poi as 240gr cast.
No real reason for doing this other than inquiring minds wanted to know.