The Great Slingshot Shootout
Four different weight projectiles are shot with each slingshot.
FPS and energy results posted.
Edit:
9,5 mm steel is 3 gm, 48 grains. 249 fps
14 mm steel is 10 gm, 160 grains. 232 fps
20 mm steel is 30 gm 480 grains. 180 fps
19 mm lead is 36 gm, 576 grains. 164 fps
BoyntonStu