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Robins’ Balistic Pendulum

Robins’ Balistic Pendulum.jpg The Sewer-hunterThumbnailsRevolving Barrelled MatchlockThe Sewer-hunterThumbnailsRevolving Barrelled MatchlockThe Sewer-hunterThumbnailsRevolving Barrelled Matchlock

The only reliable mode of proving the strength of Gunpowder is, to test it with service charges in the arms for which it is designed; for which purpose the balistic pendulums, are perfectly adapted