Anvil-launching cannon based on the automatic TNT cannon.
Weapon uses Redstone Repeaters for fire sequencing and synchronization.
Has 3 firing stages: Compression stage (4 TNT charges), Main charge (7 x 2 TNT charges), and Deployment stage (1 dropped Anvil).
Maximum projectile range is estimated at over 210 blocks. Anvils must be loaded manually, TNT is deployed by dispensers. Sand and other gravity-prone blocks can also be used in place of the Anvil.