Its .45 ACP pistol cartridge was discharged from an unrifled barrel, thus greatly reducing its intrinsic and practical accuracy alike and being intended for short-range use—ideally, one to four ...

To understand what a DA pistol ... the barrel. A pistol can have a bolt or a break-action, or it can be a semi-automatic. Both revolvers and pistols can be either single-action (SA) or double ...