![]() 45 ACP-particularly when it was housed in a relatively short, light pistol. 40 S&W-in 180-, 165- or 155-grain configuration-was a lot closer, recoil-wise to the. Controllability is also a factor, since the. I like 9mm, its easy to handle, its cheap, and there are a lot of high quality 124gr JHP defense ammo for it (Speer Gold Dot FTW). It was felt that improvements in bullet technology boosted the 9mm beyond what the round achieved in the decades since it was a law-enforcement standard in this country. If you carry 45ACP daily, it make sense to get carbine in that caliber, likewise, if you carry a 9mm everyday, get a carbine in 9mm. 40 S&W-despite much initial fanfare-took a serious hit in popularity few years back with the resurgence/re-adoption of the 9mm among a whole lot of state, federal and local law enforcement agencies. 45 ACP (overall length of 1.275) could not. 40’s main selling point was that it had an overall length of 1.135 inches, which permitted its use in 9mm-size platforms-something the. 40 S&W was developed for the FBI as a replacement for the “10mm Lite” loads that came into being as an easier shooting alternative to the full-house 10mm auto-which, at least in its early 170-grain Norma loading, was, well. In this case, the masses are more-or-less correct. 45 ACP loads run the gamut between 200-grain +P JHPs to 255-grain HCs. Ballistics If you took a random poll of gun owners, the majority would probably say that the 10mm is more powerful than the. 40 was developed in 1990, while the 9mm was designed in 1901 the. 45 ACP have a considerable longevity advantage over the. ![]() 45 ACP 230-grain hardball load has a muzzle velocity while higher-pressure 9mm Luger rounds can be around 1,300 fps. The velocity span, naturally, is a bit larger. Objectively speaking, that’s really not all the great of a bullet diameter span, but it’s been more than enough to fuel countless hot-stove arguments for decades. Speaking metrically, these three auto standbys are 9.01mm, 10.2mm and 11.43mm, respectively. Black Hills 125-grain all-copper Honeybadger offering with its fluted bullet configuration. Everybody would gravitate towards the 45 ACP because it is a larger round and has more stopping power than a smaller 9mm. But the actual physics involved aren’t as disparate as they might seem, despite the passionate arguments from one side or the other. The much-used term “stopping power” has been bandied about by handgunners since, it seems, the dawn of time. And the general areas of contention usually revolve around controllability, capacity and power. So as with most things firearms-related pick your preference: heavier. 380 ACP and centers around the 9mm Luger. Though a 9mm pistol will hold more rounds, the. When most shooters talk about “serious” defensive pistol calibers, the conversation usually bypasses the.
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