Hey,
Yes I shot some of them last fall.
Thinking that the accuracy would help on an antelope hunt.
No such luck! they shot,, well the best group I got was 6"@ 100yds.
But they where mostly in the 9"-12" size.
That just doesnt cut it for me, so I went back to the power belts.
They will shoot 2-3" out of my Knight T bolt and 700 Rem muzzle loader.
Try them, they may shoot better for you.
Good luck and hey let me know if they work for you.