if it came down to one shot to save your life…which would you prefer?….the .45 is combat proven…….. How come I hear of cops emptying their 9mm weapons at a suspect and they still keep coming at ’em?? Like all. Others think 9mm trumps all or the .40 caliber has its own merits. 9mm vs .45 ACP Match Ups One of the biggest mistake that most people make is taking a black-and-white stance (only looking at ballistics stats) on the .45 ACP and 9mm. Meaning if you start rapidly firing your weapon you will find difficulty realigning your sights on your target. Due to the smaller size of the round, 9mm guns typically have a higher magazine capacity than a .45, although the specifics vary depending on the type of gun. A 9mm fires bullets with a velocity of between 990 and 1350 feet per second. I will tell them I have seen too many 9 mm GSW’s to the chest survive that round to make me comfortable carrying it. Even a hollow point goes through a person quite often. no refunds. With the 45 … This would be a "handloading" proposition. The cartridge expands to approximately 0.35 to 0.72”. The low velocity and heavy weight of the .45 is great for … 1911Tuner Moderator Emeritus. This, in conjunction with the faster twist rate of 9mm barrels, makes it easier to design bullets for the 9mm that will reliably expand over a broader velocity spectrum. Now, contrary to popular opinion, medics carried weapons (unless they were Conscientious Objectors, and I was not.) The .45 acp bounced off the helmet at 35 yards while the 9mm penetrated the helmet at an astonishing 125 yards proving that the 9mm with its higher velocity, flatter trajectory and higher capacity (they used a Canadian High Power) that the 9mm was the superior combat pistol and caliber period. 4 of 10 Bill Wilson of Wilson Combat: 9mm vs. .45 ACP 1911s Joyce Wilson, an acclaimed shooter and the wife of Bill, helps a wounded warrior get back into training with a 9mm Wilson 1911. The more than century-old debate of .45ACP vs 9mm rages on. If I need better concealment I carry a the little 9 since its better than nothing and its only for a short time once a week. Both are great options for self defense, both are widely popular and available everywhere, and both have withstood the test of time. Why is that? Never saw anyone hit in the head with a .45 survive. go home kids, the shows over. Such as having to shoot through a windshield. Some 45 ACP ammo expands to nearly an inch as it travels through a soft target. 9mm is 9mm in diameter or 0.354 inches in diameter. Never blame the gun nor the bullet for one’s ineptitude and lack of ability to stop and put down the target under any circumstance, on the range, hunting ground or in the battlefield. Army officials were recently quoted declaring its stock of 200k-plus semi-auto Sig Sauer M11 and Beretta M9 pistols to be outdated. He had a 45 pistol. I will not tell someone not to carry a 9. The 45 ACP is a classic American round. In a pistol as heavy as a 1911, a 9mm has very little felt recoil. Thank you! Finally, the 9mm can be housed in smaller and lighter handguns. The average individual armed with a pistol will be lucky to unsheathe their weapon in a timely manner and place their first shot where it will stop a miscreant. There were several more instances prior to this with the 9mm round where we hit out targets and the target kept fighting. 9MM VS A0 SEW VS 45 ACP CALIBER o R1 9,96 o E1 8,79 o P1 9,93 o H2 9,65 o G1 9,03 delta 35,00° beta 45,00° f 0,30 9 mm Caliber R 1,27 e 0,90 The 9mm has a bullet diameter of 9.01mm (0.355 in), a neck diameter of 9.65mm, a base diameter of 9.93 mm, a rim diameter of 9.96mm and a rim E 2,98 L3 19,15 L6 29,69 thickness of 0.90 mm. Ask any officer who has been involved in a shooting, and IF he will talk about it, he will confirm it. 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