I would fail to see how a firearm carried in a holster could not be considered to fall under (2) above from the Boulder City ordinances. ...
LT, FYI, the code you cite is from Colorado. We are in Nevada.
Here is a link to the Boulder City, Nevada City Code
http://sterling.webiness.com/codebook/index.php?book_id=417
And the section at issue:
7-1-3: DISCHARGING FIREARMS, AIR GUNS:
No person except a sheriff, constable or police officer shall fire or discharge any firearms or air guns of any description within one thousand (1,000) yards of any building, street, sidewalk, alley, highway or other public place or have anyfirearms or air gun in his possession within one thousand (1,000) yards of any building, street, sidewalk, alley, highway or public place unless it is unloaded and knocked down or enclosed within a carrying case; provided, that this Section shall not prevent the maintenance and use of duly supervised rifle or pistol ranges or shooting galleries authorized by the City Council. This Section shall not prohibit the stocking of firearms by duly authorized dealers in the same. (Ord. 28, 1-3-1960, eff. 1-4-1960)
Ken