Obus 16 inch Armor Piercing Shell

World War II and Korean War Deployments
   AP Mark 8 Mods 0 to 8 - 2,700 lbs. (1,225 kg) ^{1a 2a}
   HC Mark 13 Mods 0 to 6 - 1,900 lbs. (862 kg) ^3a
   HC Mark 14 Mod 0 - 1,900 lbs. (862 kg) ^3a
   Target Mark 9 Mods 1 & 2 - 2,700 lbs. (1,225 kg) ^4a
   Target Mark 10 Mod 0 (later Mark 18) - 2,700 lbs. (1,225 kg) ^4a
   Target Mark 15 - 1,900 lbs. (861.8 kg) ^5a
   Target Mark 16 - 1,900 lbs. (861.8 kg) ^5a

Added during 1950s Deployments
   Nuclear Mark 23 - 1,900 lbs. (862 kg) ^6a

Added during 1967-69 Deployment ^7a
   HE Mark 19 - 1,880 lbs. (852.8 kg) ^8a

Added during 1980s - 1990s Deployments ^{9a 10a}
   HE-CVT Mark 143 - 1,900 lbs. (862 kg)
   ICM Mark 144 - 1,880 lbs. (852.8 kg)
   HE-ET/PT Mark 145 - 1,900 lbs. (862 kg)
   Anti-Personnel ICM Mark 146 - 1,900 lbs. (862 kg)
   Improved HC Mark 147(?) - 2,240 lbs. (1,015 kg)
   HE-ER Mark 148 with Sabot - about 1,300 lbs. (590 kg)
   HE-ER Mark 148 w/o Sabot - about 1,000 lbs. (454 kg) (fly away weight)

AP Mark 8 - 40.9 lbs. (18.55 kg) Explosive D
HC Mark 13 - 153.6 lbs. (69.67 kg) Explosive D
HC Mark 14 - 153.6 lbs. (69.67 kg) Explosive D

Nuclear Mark 23 - W23 warhead, about 15-20 kilotons

HE Mark 19 - 400 M43A1 grenades

HE-CVT Mark 143 - 153.6 lbs. (69.67 kg) Explosive D
ICM Mark 144 - 400 M43A1 grenades
HE-ET/PT Mark 145 - 153.6 lbs. (69.67 kg) Explosive D
ICM Mark 146 - 666 M42, M46 and M77 grenades
HC Mark 147(?) - N/A, possibly about 181 lbs. (82.1 kg) Composition A-3
HE-ER Mark 148 - About 300 M46 grenades

Sub-munitions for Mark 19, Mark 144, Mark 146 and Mark 148 projectiles
   Each M43A1 grenade contains 21.2 grams of Composition A-5
   Each M42 grenade contains 30.5 grams of Composition A-5
   Each M46 grenade contains 30 grams of Composition A-5
   N/A for M77 grenade, but probably around 30 grams of Composition A-5

AP Mark 8 - 72.0 in (182.9 cm)
HC Mark 13 - 64.0 in (162.6 cm)
HC Mark 14 - 64.0 in (162.6 cm)

Nuclear Mark 23 - 64.0 in (162.6 cm)

HE Mark 19 - 63.6 in (161.5 cm)

HE-CVT Mark 143 - 64.0 in (162.6 cm)
ICM Mark 144 - 63.6 in (161.5 cm)
HE-ET/PT Mark 145 - 64.0 in (162.6 cm)
ICM Mark 146 - 64.0 in (162.6 cm)
HC Mark 147(?) - about 72.0 in (182.9 cm)
HE-ER Mark 148 - about 72.0 in (182.9 cm)

AP Mark 8 - 2,500 fps (762 mps) (new gun)
AP Mark 8 - 2,425 fps (739 mps) (average gun)
AP Mark 8 - 1,800 fps (549 mps) (reduced charge)

HC Mark 13 - 2,690 fps (820 mps) (new gun)
HC Mark 13 - 2,615 fps (797 mps) (average gun)
HC Mark 13 - 2,075 fps (632 mps) (reduced charge)

HC Mark 147(?) - 2,825 fps (861 mps)
HE-ER Mark 148 - 3,600 fps (1,097 mps)