Any good anagrams for mackay gun?

This gun is made of wrought iron, and distinguished from the Whitworth and Lancaster guns by the following characteristics: The Whitworth has a hexagonal bore in a tube of homogeneous iron, strengthened with hoops forced on by hydraulic pressure; the Lancaster is without grooves, but the bore is oval; the Mackay has numerous grooves, but the projectile does not, as in other guns, fit into them, its rotation being imparted by the rush of gases through the spiral grooves around it. In every case the groove or oval takes one turn, or portion of a turn, within the gun.

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