Project HARP test firing

Project HARP (High Altitude Research Project) test-firing a Martlet 2 projectile from a 16" (410 mm) high-velocity gun.

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Previously:

https://www.homemadetools.net/forum/...791#post152291
https://www.homemadetools.net/forum/...130#post134435
https://www.homemadetools.net/forum/...551#post128152
https://www.homemadetools.net/forum/...5803#post82569

Project HARP test firing - GIF