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is there a compilation of the shortest semiauto in their respective caliber. Reckon the Baby Browning would be the candidate for .25, and the Boberg / Bond for 9mm, right? But what about .32, .380, .45 etc.?

is there anything particularly special about the standard 9mm FMJ that comes with the M17/M18? I just noticed that it appears to be in the top segment of the 9mm gamut when it comes to ME (ca. 450 ft/lbs), but apart from that, it's quite ordinary, right?

Despite the surge of poly handguns (there are even some revolvers in the meantime...), it appears that metal-framed handguns (steel, aluminium, maybe even zamac) are still defending a significant market share. Is there any practical rationale behind an all-metal gun apart from aesthetics and...

Just picked up a second-hand CZ 70 as interim gun. It was the cheapest non-.25acp centerfire I could lay my hands on, but it seems to be in a surprisingly good shape for the price. The barrel actually looks like it was completely new - or someone did one hell of a cleaning job. The gun looks...

It is obvious that .22lr out of a pistol is not a great round for penetrating hard surfaces like sheet metal, acrylic glass or the like. Yet, a (subsonic) 5.7 or a 5.45x18 yield a similar ME but are much better in penetrating stuff. I deduct that the material (soft lead) of the .22lr should be...

I need some help conderning the correct term for a semiauto pistol barrel that is flush with the slide frnt (like any other standard barrel), but has a thread for attaching a suppressor when some kind of a bridging device is used. I have seen that on some semiauto marketed only recently, but...

I reckon that has something to do with the gas delay system it utilizes. What are the downsides of this approach? Because otherwise it appeared to be a quite compact gun that would fit ideally into the concealed carry world, after all...

It just occured to me that together with the M17, the Army is (also) issuing hollowpoint ammo instead of exclusively fmj (please correct me if I was mistaken). Just wondered what's the rationale behind this decision. Is it an additional option for military LE units or intended for frontline...

Recently, I've read a lot about ongoing attempts to replace both the 5.56 and the 7.62 with a new general-purpose caliber. I'm beginning to get a little confused with so many different systems being advertised as "the Army's / U.S.M.C. etc" new wonder round: Cased telescoped, caseless, hybrid -...

I always assumed that .22lr out of a pistol is somewhat superior only to .25acp. Now, just out of general curiosity, I checked the data just to see that there is actually not soo much difference. You can squeeze roughly 110 ft lbs out of a 5" .22lr, the same a 3" .32acp will average. Did I get...

Sorry for borrowing the term from political science, but it kind of fits, I guess. When my interest in modern firearms sparked, in the early '90ies, there seemed to be a plethora of calibers not only available, but widespread as well: The 1911 platform typically in .45, the likewise venerable...

Hey there, I was looking for .223 subsonic options, but Google didn't bring up that much. Any ideas which maker other than "Atomic" produces that stuff? (Yes, I'm aware of the fact that it produces hardly .22 WMR level ME and does not cycle semiautos - I have a pump-action and could shoot it at...

A friend of mine wants to upgrade his rimfire bolt action to more "tacticool" and turned to me as the firearms expert in residence. Yet, shame on me, I was not aware of the concept of what apparently is called a "chassis", meaning a tactical upgrade stock. Any ideas if something lightweight...

Would it theoretically be possible to create a FMJ .22lr by using a .22WMR bullet given you manage to create a heel so it fits the LR case? Or would there be further obstacles arising? The bullet diameter differs by 0.02mm only, and other than many posts concerning .22lr vs. .22WMR claim...

For a long time, I've been looking for a rifle that obviously doesn't exist so far: Something with the basic concept of a Henry AR7 or an Aero Survival, but 1.) bolt action and 2.) NO takedown feature (since both semi-auto and quick disassembly are restricted features in my home country) Any...

Maybe kind of an odd question, but anyway: I wonder whether anyone has ever tried to make a centerfire version of .22lr? What I have in mind is that while .22lr is still the most common caliber around, it is by most people seen as limited to recreational, plinking, varmint etc. also due to the...

I was just wandering how bullet momentum (velocity x weight, thus not weighing in velocity(2) like energy) influences terminal performance?

Does anybody know more details about that gun other than that it is a German-made 6.35 (.25acp) version of a blank firing gun that was produced in the 1970ies Picture

Imagine you have one main handgun + say 50 rds of ammo for your bugout bag. Would you prefer having an additional small & cheap, minor caliber (.22lr, .25acp, .32acp) handgun (akin to a Saturday Night Special) with say 25 rounds or would you favour using the weight of the secondary + ammo for...

Does anybody have any additional information about the foldable M4 varianthttps://www.airforcetimes.com/news/your-air-force/2018/06/28/the-air-force-is-arming-pilots-with-a-longer-range-stand-off-rifle-to-use-if-theyre-ever-shot-down/ that the USAF is fielding not so much as a survival, but as a...