I wasn’t going to chime in here, because as usual, Lew’s answer was right on! However, If the pictured cartridge has a brass-cup primer (it is hard to tell, and found in the US), it is NOT a reload. I am not questioning that reloads from some German firm, with this headstamp exist. Why not? The cases are Boxer primed. In this instance, though, found in the USA, I must say that this date with a red primer seal is much more common here than are the later dates with a green primer seal. I have a loaded, excellent condition Triangle 91 .45 cartridge with red seal, as pictured. My green seal version is only a fired case, and in the near 30 years since then, I have not been able to replace it with a loaded round.
USMC69. I assume you were in the USMC - a great branch of the military. Thank you for your service.
The order and format of headstamps is not a uniform or mandatory thing. There is no question what-so-ever that the date on you cartridge is 1991 (91) and not 1916 (61). This headstamp style does not exist with that early a date, nor even the “style” of the cartridge. In fact, the earliest headstamped cartridges in .45 ACP caliber from China, after over 50 years of collecting this caliber, that I have seen or even heard from, date from the 1920s and have headstamps completely in Chinese Characters. Again, Lew was absolutely correct in his identification. I can add nothing to that.
I know some combinations of digits in headstamps can confuse, since they can be read two ways. That is when knowing the characteristics of the cartridges comes into play, and can help immensely in end the initial confusion that all of us have likely encountered in our study of the subject.
P.S. If the primer cup in your cartridge is nickel, then it could be a reload. Chinese primers in this caliber are generally brass. I cannot say always, because of course I don’t have every date.
US Army & USAR-active 1956-1965