Possible Clues:

• With 7-Down, masterpiece
• Vessel in which mother keeps a gun, unloaded
• Bottle shown by two males seizing a loaded gun
• Powerful weapon the Romans described as great
• Article in silence split by good shooter
• Switching starters, badger old woman for bottle
• Monthly, perhaps, miners getting large bottle
• Male in the morning penning antelope in oversize container
• Parent drinks a gin, disposing of one big bottle
• 1.5-liter bottle