By "going to war," do you (plural) literally mean formally joining the US military or metaphorically for SHTF? Would those two situations affect your choice of sidearm?
Do you aim for the head or center of mass, and why?
I'm following the Russia-Ukraine War closely, but haven't seen any side arms (99.99% AK-type rifles [AK-47 > AK-74 > AK-12 and AK-103], a few M4-style rifles, and one Mosin-Nagant with a scope).
And if enlisting (if that's the correct word to use, pardon my lack of military service), would you/we actually have a choice in sidearm to carry? I have an advance degree and work in health care, so I'd probably end up in the medical core, but I sure will be out at the range in my spare time.
My choice is my Glock 17 with Hornady Critical Duty +P 124 grain JHPs because I'm familiar with the manual of arms, shoot it well (better than my Browning Buck Mark, which irritates me), have spare mags, spare parts, and a spare, fully functional Glock 17, the recoil for follow-up shots is tolerable, and 9 mm is much more abundant where I'm at (Northern California) and cheaper than .45 ACP. When I bought my first Glock 17 last August, I was going to buy the Glock 21/.45 ACP, but I couldn't find any .45 ACP.
lrrifleman beat me to the punch about battlefield pick-ups, which I'm keeping in mind in terms of ammo and also learning manual of arms of guns I don't own. I presume that civilian bad guys would be carrying Glocks and cheap guns, because that's what they use nowadays, non-special ops military using standard issue sidearms. The ability to have enough time and carry battlefield pick ups will probably be limited, so what guidelines should I have for selecting?
I'm evaluating buying a Rock Island Armory (RIA) or Springfield 5" M1911 in .45 ACP, because, until I read this post, as a collector's item and to get physically familiar with the manual of arms (I have a cognitive understanding of it based upon Mas Ayoob and other YouTube videos). Any suggestions on which one (or both, LOL)?
I don't know about the Springfield, but the RIA has a bad rep for misfeeding hollow points. What brand/model of magazines would you recommend for reliable feeding of hollow points?
Would you be shooting hollow points, FMJs, or both?
Along those lines, I'm seeing a lot more of your selecting .45 ACP, especially the M1911 as your sidearm of choice. Being a relative newbie, would you help me understand the advantages of the M1911 over, say my Glock 17 or the Glock 21 in .45 ACP?