I don't know about the shooting part.... if things are going south, I'd grab anything with bullets in it.
The bigger issue where I was, was availability and price. Choices at a good price were limited unless you were a good horse trader, so most folks I knew went down to the Gart Bros. Sports Castle down on Broadway in Denver to see what they had. Then, as now, there were only certain brands, models and calibers approved (anything you want, as long as it was .38 special), which the bigger dealers tried to keep in stock or at least on order. I don't recall prices or what we were paid back then, but suffice to say there weren't many custom off-duty or backup guns among patrolmen, even among the more gun-savvy. Even so, those were the "golden days" of firearms, before polymer and hidden metal "chassis" turned it from developing a real "connection" with your duty gun to the cold, clinical, "cookie-cutter" sameness they have now....