Acp Vs Gap - 45 ACP (aka 45 Auto) is here to stay. As the standard ammunition for the M1911 pistol, which has served in the US Armed Forces for more than 110 years, the 45 ACP is as much a part of America as the .45 caliber pistol cartridge.
It only follows that the 45 ACP should have a large following. And it does. As a commenter on the M1911 forum once said. 45 ACP fans wouldn't go any further than asking for spaghetti for Thanksgiving dinner.
Acp Vs Gap
45 Auto is a slightly larger cartridge, but both calibers perform equally well in most handguns. 45 GAP is harder to find when it comes to ammo and tends to be more expensive to shoot. These two calibers are not interchangeable in handguns due to the difference in bullet sizes.
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All of this means that Glock had some rocks when they introduced the 45 GAP in 2003. Inspired by the success of shortening (and taming) the 10mm until it became the 40 S&W, Glock decided they could do it again, introducing what was essentially a shortened version of the 45 asp.
The 45 GAP really hits the mark with a .143” shorter barrel than the 45 ACP. 45 GAP can do this without compromising performance because it is designed for today's powder. Modern powder is smaller in volume than the powder available to Browning at the turn of the century. Glock also reinforced the case to reduce the chance of the neck breaking. They did not try to make their 45 GAP pistol more or less powerful than the previous one.
This is where Glock went wrong. 40 S&W has become popular because it provides performance comparable to the lighter 10mm load of a much smaller revolver. But a G37 pistol chambered in 45 GAP is only about half an ounce lighter than a 45 ACP G21.
Compare that to the Glock 40 S&W, which is 7 ounces lighter than their 10mm model, and you can better appreciate how the Glock threw the bullet. They pressed the cartridge, but by not pressing the firearm, they defeated their target.
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45 GAP failed. If law enforcement agencies are still using it, they won't be for long. Very few private citizens use it either. If you are thinking about buying a 45 GAP pistol, understand that finding the right ammo can be frustrating.
All this aside, we have to ask. Does the 45 GAP do the same thing as the 45 ACP, just in a smaller package? Let's compare their ballistics, stopping power and recoil to see how well the Glock performed in 45 ACP.
In appearance, the 45 GAP is really a shortened version of the 45 ACP ammunition; basically the same bullet and chamber pressure, with less brass to hold both. The shorter body of the 45 GAP is nothing modern powder can't make up for. So, on paper, there's no reason why we should expect the two stages to perform differently. But what in practice?
We tried to pick the most apples-to-apples bullets to compare against each other, one for each of the common 45 GAP and 45 ACP bullet weights: 185, 200 and 230 grains. As our ballistic data shows, the two bullets do indeed provide the same ballistic performance. The muzzle velocity of the No. 45 GAP projectile is significantly different from the corresponding weight of the 45 ACP. Bullet drop may be faster for one round or another depending solely on bullet weight.
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It is good to note here that the 45 ACP offers an advantage that the 45 GAP does not have; overpressure ammunition. The 45 ACP +P cartridge may have more punch, but it will also provide a smoother trajectory that ends up with more kinetic energy. You could theoretically load your own 45 GAP +P. As far as we know, it was never produced commercially.
Several factors determine how effective a round can be at neutralizing a threat. Because the 45 ACP and 45 GAP fire essentially the same bullet, their initial wound diameter and sectional density (which describes the bullet's penetration potential) are the same. But the amount of energy the ball can transfer to the target at impact is arguably the most important factor in determining stopping power.
45 GAP matches its predecessor in terms of energy on impact. Depending on which company made the ammo, you may find that 45 GAP or 45 ACP hit the target harder.
It's worth noting that the 45 GAP, despite Glock's intentions, is often seen as a slightly weaker version of the 45 ACP. We didn't notice it, although you can't argue with someone who did.
Rcbs 18915 3 Die Carbide Taper Crimp Die Set .45 Acp/ Gap/auto Rim
None of these calibers are considered favorites for long-term use. We include this chart more out of morbid curiosity than for any real practical use. You can see that the 45 ACP and the 45 GAP are quite comparable when it comes to bullet drop at 100 yards.
For self-defense, guns with a lighter recoil are preferred. They impart relatively less twist to the muzzle, which in turn contributes to rapid and accurate shooting. In other words, if the threat is increasing and you miss the first shot, you want to spend as little time as possible on the second. If he was not sure before, then the first shot indicates the threat that it is either him or you.
Comparing the recoil energy of the six bullets above is easy. We already have their bullet weight and muzzle velocity; now we just need their fuel weight and gun weight. For comparison, 45 ACP bullets have six powders, and 45 GAP bullets have five. Additionally, the 45 ACP round was fired from the 29.28 oz G21 pistol; 45 GAP bullet, 28.75 oz G37 pistol.
Conclusion. These two bullets generate almost the same amount of recoil energy. You may notice a slight difference between the two. Of course, a heavier gun will always weaken the felt mark, but you won't benefit from a significant reduction in recoil by choosing one cartridge over another.
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After the 9mm, the 45 ACP is the second most popular centerfire in America. So as long as pistols are made, the 1911 will remain in print. This makes finding 45 ACP ammo as easy as going online or to a sporting goods store. It also makes a 45 ACP firearm no more expensive than the market will allow.
45 GAP is a different story. You can buy a G37 easily enough since Glock still makes it. But finding 45 GAP ammo, let alone a large selection of 45 GAP ammo, can be frustrating. The demand for 45 GAP simply isn't high enough for ammo manufacturers to consistently use the raw materials to make them. As a result, pickings can be scarce even at the best of times.
In general, the 45 GAP functions similarly to the 45 ACP. It can be just as accurate, powerful and easy to use as its predecessor. But the 45 GAP just didn't offer shooters enough to go beyond a round that was already so popular and loved.
The 45 GAP will be around for a little while longer, but we expect it to go out of production eventually. Years later it will live on only as a curiosity for handloaders who like to handcraft their cartridges to their exact specifications.
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We don't think it's any harsher than that to say don't buy a 45 GAP pistol. 45 ACP does everything the newest cartridge does; it's just a thousand times more powerful and it's not going away anytime soon. Rifle cartridge designations are one aspect of firearm ownership that can confuse new shooters at first, and if you decide to buy a full-size Sig Sauer 1911 or Glock 21, you may notice that the barrel says "45 Auto." Excited to get something for your new gun, you browse the shelves at the gun store and are horrified to find only boxes labeled "45 ACP".
So why are 45 Auto and 45 ACP labeled differently? We will get there! In this article, we'll explain the differences in 45 ACP/45 Auto cartridge designations, as well as look at some types of .45 caliber pistols.
45 ACP and 45 Auto are the same cartridge, there is no difference other than the name.
45 ACP was developed for the US Army by the famous American firearms inventor John Moses Browning in 1904. The US Army needed a new pistol cartridge with more stopping power because they were dissatisfied with the performance of their .38 Long Colt pistols. .
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At the time, Browning was working for Colt to develop a new semi-automatic pistol for the US Army, and they developed a new .45 caliber cartridge for the cartridge, later called
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