Civil War Weaponary

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Across
  1. 7. a warship, operate completely submerged in the sea for long periods
  2. 9. a ship that was impossible to contradict, weaken or changed
  3. 10. a gun that could fire 250 rounds per minute but captured by union and never got used
  4. 11. a weapon incorporating a metal tube from which bullets, shells, or other missiles
  5. 12. who nick-named agar gun as "coffee grinder"
  6. 13. person who received an order to build a hot air balloon
  7. 14. projectile of a gun
  8. 15. a heavy sword with a curved blade and a single cutting edge
Down
  1. 1. a large bag filled with hot air or gas to make it rise in the air
  2. 2. it was a first machine gun and Richard Jordan Gatling made it
  3. 3. guns, swords, cannons, submarines and more
  4. 4. a weapon with a long metal blade and hilt with a hand guard
  5. 5. a conical bullet with a hollow base that expanded when fired
  6. 6. a large, heavy piece of artillery, typically mounted on wheels, formerly used in warfare.
  7. 8. a blade that may be fixed to the muzzle of a rifle and used to stab an opponent in hand to hand fighing