Airgun Pellet .177 Caliber with 3.5mm bearing

Airgun pellet in .177 caliber for pellet rifles.

The recess in the top is made to fit a 3.5mm bearing (for weight). They will not function without the bearing. I got 500 ball bearings in 3.5mm off amazon for 8 dollars.

I've only made a few and haven't tested them much, so I'm still not completely sure how they perform, although I do know that they are really loud. These pellets when shot out of my Gamo Varmint at 1200FPS, you can hear them going supersonic.