Notes on the 45 GAP (Glock Auto Pistol or .45 Glock) : https://en.wikipedia.org/wiki/.45_GAP
"The full-size Glock 37 pistol was introduced by Glock to use the .45 GAP cartridge and was followed by the compact Glock 38 and the subcompact Glock 39. Glock's .45 GAP-sized pistols use the same frame as their 9×19mm/.40 S&W/.357 SIG line of pistols. The slide is slightly wider to accommodate the larger diameter .45 cal round and is flush with the frame. Magazines for the .45 GAP are of the same dimensions as those of the 9×19mm/.40 S&W/.357 SIG line of pistols.
.45 Super: https://en.wikipedia.org/wiki/.45_Super
"The .45 Super is a powerful smokeless powder center fire metallic firearm cartridge developed in 1988 by Dean Grennell, a well-known writer in the firearms field as well as managing editor of Gun World magazine. It is dimensionally similar to the .45 ACP round but has a thicker case wall and is loaded to higher pressures, which offers an average 300 feet per second (91 m/s) improvement in muzzle velocity over the .45 ACP.
...
A number of bullet weight and velocity combinations are offered in .45 Super, including a 185-grain (12.0 g) bullet propelled at 1,300 ft/s (400 m/s), a 200-grain (13 g) at 1,200 ft/s (370 m/s) and a 230-grain (15 g) at 1,100 ft/s (340 m/s), as well as other weight/velocities provided by Super Express cartridges and Buffalo Bore, such as 255-grain (16.5 g) at 1,050 ft/s (320 m/s).
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The Dan Wesson .460 Rowland will also chamber a .45 Super."
From: https://en.wikipedia.org/wiki/.45_ACP#Others
"Popular derivative versions of the 45 ACP are 45 Super and .460 Rowland. The Super is dimensionally identical to the 45 ACP; however, the cartridge carries a developer established pressure of 28,500 psi (197 MPa) and requires minor modification of firearms for use.
The Rowland operates at a developer established 40,000 psi (280 MPa) SAAMI and may only be used within a select group of firearms significantly modified for this purpose; the Rowland case is 0.057 inches (1.4 mm) longer specifically to prevent it from being chambered in standard 45 ACP firearms. Brass cases for each of these cartridges carry the applicable name within the headstamp. The Super provides approximately 20% greater velocity than the 45 ACP +P; the Rowland approximately 40% greater velocity than the 45 ACP +P."
"The full-size Glock 37 pistol was introduced by Glock to use the .45 GAP cartridge and was followed by the compact Glock 38 and the subcompact Glock 39. Glock's .45 GAP-sized pistols use the same frame as their 9×19mm/.40 S&W/.357 SIG line of pistols. The slide is slightly wider to accommodate the larger diameter .45 cal round and is flush with the frame. Magazines for the .45 GAP are of the same dimensions as those of the 9×19mm/.40 S&W/.357 SIG line of pistols.
.45 Super: https://en.wikipedia.org/wiki/.45_Super
"The .45 Super is a powerful smokeless powder center fire metallic firearm cartridge developed in 1988 by Dean Grennell, a well-known writer in the firearms field as well as managing editor of Gun World magazine. It is dimensionally similar to the .45 ACP round but has a thicker case wall and is loaded to higher pressures, which offers an average 300 feet per second (91 m/s) improvement in muzzle velocity over the .45 ACP.
...
A number of bullet weight and velocity combinations are offered in .45 Super, including a 185-grain (12.0 g) bullet propelled at 1,300 ft/s (400 m/s), a 200-grain (13 g) at 1,200 ft/s (370 m/s) and a 230-grain (15 g) at 1,100 ft/s (340 m/s), as well as other weight/velocities provided by Super Express cartridges and Buffalo Bore, such as 255-grain (16.5 g) at 1,050 ft/s (320 m/s).
...
The Dan Wesson .460 Rowland will also chamber a .45 Super."
From: https://en.wikipedia.org/wiki/.45_ACP#Others
"Popular derivative versions of the 45 ACP are 45 Super and .460 Rowland. The Super is dimensionally identical to the 45 ACP; however, the cartridge carries a developer established pressure of 28,500 psi (197 MPa) and requires minor modification of firearms for use.
The Rowland operates at a developer established 40,000 psi (280 MPa) SAAMI and may only be used within a select group of firearms significantly modified for this purpose; the Rowland case is 0.057 inches (1.4 mm) longer specifically to prevent it from being chambered in standard 45 ACP firearms. Brass cases for each of these cartridges carry the applicable name within the headstamp. The Super provides approximately 20% greater velocity than the 45 ACP +P; the Rowland approximately 40% greater velocity than the 45 ACP +P."
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