The .45 G.A.P. (often called the .45 "GAP") pistol cartridge was designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP but was shorter to fit in a more compact handgun, and with a stronger case head to reduce the possibility of case neck blowouts. G.A.P. is an acronym for "Glock Automatic Pistol", and the .45 G.A.P. is the first commercially introduced cartridge identified with Glock.
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| - The .45 G.A.P. (often called the .45 "GAP") pistol cartridge was designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP but was shorter to fit in a more compact handgun, and with a stronger case head to reduce the possibility of case neck blowouts. G.A.P. is an acronym for "Glock Automatic Pistol", and the .45 G.A.P. is the first commercially introduced cartridge identified with Glock.
- The .45 GAP cartridge (.45 Glock Automatic Pistol) is an Austrian .45 caliber cartridge developed by GLOCK for the GLOCK pistol. It was developed in order to try to fit a .45 caliber cartridge in a compact 9mm/.40 caliber GLOCK frame. In other words, it was designed to be equivalent to the .45 ACP but to hold more rounds. It appears to be a short and fat version of a .45 ACP, but operates closer to a .357 SIG, designed to operate at higher pressures with more power. It's also more modernized and updated, correcting design flaws of the .45 ACP.
- The .45 GAP has the same diameter as the .45 ACP pistol cartridge, but is slightly shorter, and uses a small-pistol primer instead of the large-pistol primer most commonly used in .45 ACP ammunition. Originally, the maximum bullet weight of the .45 GAP was . In order to provide terminal ballistics on par with the standard .45 ACP loads, the .45 GAP was designed to operate at a higher standard pressure—roughly equivalent to the higher pressures found in .45 ACP "+P" rounds. Since the .45 GAP has a much smaller cartridge volume than the .45 ACP, the desired pressure and resulting velocity needed to be achieved through powder selection alone. Later development concluded that the .45 GAP could in fact fire ammunition just as the .45 ACP.
- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | .45 G.A.P. |- | colspan="3" style="text-align: center; font-size: 90%; border-bottom: 1px solid #aaa; line-height: 1.25em;" | Image:9mm 7,62mm 357sig 10mm 45SW 45GAP 50AE 002.jpgSide-by-side comparison to other cartridges. From left: 9x19mm Parabellum, 7.62x25mm Tokarev, .357 SIG, 10 mm Auto, .40 S&W, .45 G.A.P., .50 Action Express |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Service history |- | Production history |- | Specifications |- mm ) |- |- |- |- |- )
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| - Side-by-side comparison to other cartridges. From left: 9x19mm Parabellum, 7.62x25mm Tokarev, .357 SIG, 10 mm Auto, .40 S&W, .45 G.A.P., .50 Action Express
- Side-by-side comparison to other cartridges. From left: 9x19mm Parabellum, 7.62x25mm Tokarev, .357 SIG, 10 mm Auto, .40 S&W, .45 G.A.P., .50 Action Express
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| - |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | .45 G.A.P. |- | colspan="3" style="text-align: center; font-size: 90%; border-bottom: 1px solid #aaa; line-height: 1.25em;" | Image:9mm 7,62mm 357sig 10mm 45SW 45GAP 50AE 002.jpgSide-by-side comparison to other cartridges. From left: 9x19mm Parabellum, 7.62x25mm Tokarev, .357 SIG, 10 mm Auto, .40 S&W, .45 G.A.P., .50 Action Express |- ! style="padding-right: 1em;" | Type | colspan="2" | Pistol |- ! style="padding-right: 1em;" | Place of origin | colspan="2" | Image:Flag of Austria.svg Austria Image:Flag of the United States.svg United States |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Service history |- ! style="padding-right: 1em;" | In service | colspan="2" | 2003-present |- |- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Production history |- ! style="padding-right: 1em;" | Designer | colspan="2" | Ernest Durham |- ! style="padding-right: 1em;" | Designed | colspan="2" | November 2002 |- ! style="padding-right: 1em;" | Manufacturer | colspan="2" | CCI/Speer |- ! style="padding-right: 1em;" | Produced | colspan="2" | 2003-present |- |- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Specifications |- |- ! style="padding-right: 1em;" | Case type | colspan="2" | Rimless, straight |- ! style="padding-right: 1em;" | Bullet diameter | colspan="2" | in (mm ) |- |- |- |- |- |- ! style="padding-right: 1em;" | Case length | colspan="2" | in (mm ) |- ! style="padding-right: 1em;" | Overall length | colspan="2" | in (mm ) |- |- |- |- |- |- |- |- |- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Ballistic performance |- style="text-align: center; font-size: 90%; background: #DEDEDE;" cellspacing="0" cellpadding="0" ! Bullet weight/type ! Velocity ! Energy |- style="text-align: center; font-size: 90%;" | style="vertical-align:middle; border-bottom: 1px dotted #aaa; " | gr (g) GDHP||style="border-bottom: 1px dotted #aaa; "| ft/s (m/s) ||style="border-bottom: 1px dotted #aaa; "| ft·lbf (J) |- style="text-align: center; font-size: 90%;" | style="vertical-align:middle; border-bottom: 1px dotted #aaa; " | gr (g) GDHP||style="border-bottom: 1px dotted #aaa; "| ft/s (m/s) ||style="border-bottom: 1px dotted #aaa; "| ft·lbf (J) |- style="text-align: center; font-size: 90%;" |- style="text-align: center; font-size: 90%;" |- style="text-align: center; font-size: 90%;" |- | colspan="3" style="text-align: center; padding-top: 5px; font-size: 90%;" | Test barrel length: 102 mm (4 in)Source: Speer Bullets .45 G.A.P. |} The .45 G.A.P. (often called the .45 GAP) pistol cartridge was designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP but was shorter to fit in a more compact handgun. G.A.P. is an acronym for "Glock Automatic Pistol", and the .45 G.A.P. is the first commercially-introduced cartridge identified with Glock.
- The .45 G.A.P. (often called the .45 "GAP") pistol cartridge was designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP but was shorter to fit in a more compact handgun, and with a stronger case head to reduce the possibility of case neck blowouts. G.A.P. is an acronym for "Glock Automatic Pistol", and the .45 G.A.P. is the first commercially introduced cartridge identified with Glock.
- The .45 GAP cartridge (.45 Glock Automatic Pistol) is an Austrian .45 caliber cartridge developed by GLOCK for the GLOCK pistol. It was developed in order to try to fit a .45 caliber cartridge in a compact 9mm/.40 caliber GLOCK frame. In other words, it was designed to be equivalent to the .45 ACP but to hold more rounds. It appears to be a short and fat version of a .45 ACP, but operates closer to a .357 SIG, designed to operate at higher pressures with more power. It's also more modernized and updated, correcting design flaws of the .45 ACP.
- The .45 GAP has the same diameter as the .45 ACP pistol cartridge, but is slightly shorter, and uses a small-pistol primer instead of the large-pistol primer most commonly used in .45 ACP ammunition. Originally, the maximum bullet weight of the .45 GAP was . In order to provide terminal ballistics on par with the standard .45 ACP loads, the .45 GAP was designed to operate at a higher standard pressure—roughly equivalent to the higher pressures found in .45 ACP "+P" rounds. Since the .45 GAP has a much smaller cartridge volume than the .45 ACP, the desired pressure and resulting velocity needed to be achieved through powder selection alone. Later development concluded that the .45 GAP could in fact fire ammunition just as the .45 ACP.
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