M6 Projectile Velocity Tests

To determine the speed of the projectiles, we fired the gun in front of a ruler and took a 1/4 second exposure with a flash strobing at 100Hz. Please note that we factored the distance between the projectile and the ruler into our calculations. The ruler markings are 1/4 inch and if this distance is used calculation yields a higher result. To correct for this, we used the ruler function in Photoshop CS3 Extended

Data from tests:
Length........Average Speed
2"................82.1
2.5".............76.9
1.5".............42.9
speeds in feet per second

2 inch flat ended projectile


2.5 inch sharpened projectile


1.5 inch flat ended projectile

Photos © Quentin Swager