Anyone try these? Would the speed help get enough spin on a slug for stability in most 30ft-lb .22's setup for JSB 18.13? Should do about 1000fps if my math is correct.
https://www.youtube.com/watch?v=5yVAZ6zELsI&t=3s
https://www.youtube.com/watch?v=5yVAZ6zELsI&t=3s