The 1911 pistol was first accepted into US Military service in 1911. It fires the .45 ACP (11.65x23mm) cartridge, and operates using a single action mechanism. The M1911A1 made some minor improvements to the original design.
Best left to a gunsmith.
No such thing. It is a typo. A 45 mm pistol would fire a bullet larger than a golf ball. I think you are looking for a .45 CALIBER pistol. That is a handgun that fires a bullet about 45/100ths of an inch in diameter. Perhaps the two best known are the 45 Colt Peacemaker type revolver of cowboy fame, and the 1911A1 .45 Automatic Pistol, used by the US Army.
what's the question ???
Depends on which .45- 45 Colt, 45 ACP, 45 Magnum, 45-70, and which bullet, and what it is fired from. If you mean the .45 ACP fired by a 1911A1 pistol, velocity varies from 830 FPS up to about 1020 fps. Slow, fat, but gets the job done.
A semi-automatic pistol chambered in 45 ACP.
What is the use of grip safety on 45 caliber pistol?
Caliber .45 Automatic Colt Pistol.
100-300 or so depending on condition
Your Ithaca manufactured 1911A1 which was made between 1943-1945 in the amount of 369,129,will be valued at between 800-1,500 dollars for a pistol displaying between 60%-90% of its original finish,and a decent bore.
The Glock pistol in caliber .45 GAP.
The answer varies, depending on WHICH .45 caliber bullet, and which weapon fires it. In the case of the 1911A1 pistol, in .45 ACP, firing a standard 230 gr. round nosed bullet, when elevated to 33 degrees, the bullet will travel 2096 ft. Not accurately, but that is it's maximum RANGE.
M1911A1