This is no small achievement for barrels this large. Kudos to HIT.
Barrels like this are made using the rotary forging process, as used in the Watervliet arsenal in NY state. Watervliet specializes in producing the M109 barrels.
WATERVLIET ARSENAL, N.Y. — Leadership at America's cannon and mortar factory announced plans to replace the arsenal's rotary forge and paint booth in th...