Calico
100-500 USD
The Colt M1911 and the colt M1911A has only 1 caliber .45 or 45/100 of an inch. This round is also known as the colt .45 A.C.P. (all Colt pistols) It is a short round which differs from the .45 long round.
Browning made the first sucessful semi auto shotgun over 100 years ago, along with semi auto rifles (BAR from WW 1) pistols (Browning Hi Power from 1935) and machine guns (.50 caliber Browning)
50-100 or so
It can vary from 100-10000 and up
They range from small enough to fit in the palm of your hand, to larger than a Desert Eagle (in the case of the Calico .22 pistols, which feed from either a 50 or 100 round rotary magazine).
Anywhere from 1-100 or more
100
The value of ANY firearm will depend on the EXACT make, model and condition. The Ruger auto pistols can range from $100 for a well worn Standard Auto with the 4 inch pencil barrel, to around $600 for an excellent condition heavy barreled 6" Model II Target version.
100-300 USD or so
about 100 USD or so
100-800 USD or so