Cannon 8 inch Howitzer M2 and M2A1 on Howitzer, Heavy, Towed: 8 inch, M115. Cannon 8 inch Howitzer M2A1E1 on Howitzer Heavy, Self-Propelled 8 inch … Cannon 8 inch, Houwitzer M2 and M2A1 on Houwitzer Heavy, Towed 8 inch M 115, Cannon 8 inch, M 47 on Howitzer, Heavy, Self-Propelled, Fulltracked, … Firing Tables for Mortar 60 mm. M2, Firing Shell, HE, M49A2 and Shell, Practice, M50A2. - USA Voorschrift Firing Tables 60-A-4