A. First loosen them slightly, scrape away any paint that clogs them, and then tighten them to full limit.

Q. What is a priming-charge, and where is it placed?

A. A small charge of black powder in both front and rear of every section of cartridge.

Q. Should the trunnion-seats of sight-standards be polished? If not, why not?

A. No. Polishing wears away the brass and throws the sight out of adjustment. They should be wiped clean, however.

Q. Is the removal of the name-plates or sight-brackets authorized at any time?

A. No.

Q. How do you test the adjustment of the azimuth indicator?

A. Insert the bore-sights, traverse the gun until the line of sight through the front and rear bore-sights intersects a datum point whose azimuth is known. If the indicator reads this azimuth, the gun is in azimuth.

Q. How do you test the level of a carriage?