Golf ball cannon almost done, I just need a stronger spring for the firing mechanism : r/DIYGuns

Golf Ball Gun!!! How to Make One That Can Shoot 400+ Yards! : 9 Steps (with Pictures) - Instructables

Pneumatic Golfball Cannon- Shoots 450+ Yards! : 12 Steps - Instructables

How Lethal is a Golf Ball CANNON??? (vs Head)

How Lethal is a Golf Ball CANNON??? (vs Head)

How easy is it to make a homemade firearm? - Quora

Powerful Golf Ball cannon! [Black Powder in a 1.75 fiberglass tube]

Shooting Golf Ball Cannon

Pneumatic Golfball Cannon- Shoots 450+ Yards! : 12 Steps - Instructables

Golf Ball Cannon - Live Fire Test