Teaspoon to millimeters | Survival equipment, Measurement conversions, Conversion chart
Tanegashima bullet sizes | Worldantiques image forum
PSA: 7.62mm is pointless against Juggernauts. Better go with 5.56 or .357 to be the most efficient when using "GUNS"... Please avoid one upping like "I only melee kill, I only use
Caliber to MM Conversion Chart for All Cartridges – Backfire
Stem Tap - MM Size Cross Reference Chart - Esslinger Watchmaker Supplies Blog