Another highly regarded .45 ACP handgun is the SIG Sauer P220. Some experts consider it not only the best double-action .45 auto pistol but the best .45 overall, even surpassing the M1911.

Since its inception, the .45 ACP caliber has always been mainly associated with the pistol that it was originally designed for: the 1911. But the 1911 is also not the only pistol chambered for the ...