11 mm caliber
Encyclopedia
This article lists firearm
cartridges which have a bullet in the 11 millimetre (0.433070866141732 in) through 12 millimetre (0.47244094488189 in) caliber
range.
All measurements are in millimeters (with inches in parentheses).
Firearm
A firearm is a weapon that launches one, or many, projectile at high velocity through confined burning of a propellant. This subsonic burning process is technically known as deflagration, as opposed to supersonic combustion known as a detonation. In older firearms, the propellant was typically...
cartridges which have a bullet in the 11 millimetre (0.433070866141732 in) through 12 millimetre (0.47244094488189 in) caliber
Caliber
In guns including firearms, caliber or calibre is the approximate internal diameter of the barrel in relation to the diameter of the projectile used in it....
range.
All measurements are in millimeters (with inches in parentheses).
Pistol cartridges
| Name | Case type | Bullet diameter | Neck diameter | Shoulder diameter | Base diameter | Rim diameter | Case length | OAL |
|---|---|---|---|---|---|---|---|---|
| .45 GAP .45 GAP The .45 G.A.P. 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... |
rimless straight | 11.48 (.452) | – | – | – | – | 19.18 (.755) | 27.18 (1.070) |
| .45 ACP .45 ACP The .45 ACP , also known as the .45 Auto by C.I.P., is a cartridge designed by John Browning in 1904, for use in his prototype Colt semi-automatic .45 pistol and eventually the M1911 pistol adopted by the United States Army in 1911.-Design and history:The U.S... |
rimless straight | 11.48 (.452) | 12.09 (.476) | – | 12.09 (.476) | 12.09 (.476) | 22.81 (.898) | 29.72 (1.17) |
| .45 Super .45 Super The .45 Super is a 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... |
rimless straight | 11.48 (.452) | 12.0 (.473") | - | 12.09 (.476) | 12.2 (.480) | 22.81 (.898) | 32.4mm (1.275") |
| .460 Rowland .460 Rowland The .460 Rowland is a proprietary cartridge intended to attain .44 Remington Magnum level velocities with a M1911-pattern semi-automatic pistol. The cartridge concept originated with Johnny Rowland, the host of "The Shooting Show"... |
rimless straight | 11.48 (.452) | 12.0 (.473") | - | 12.09 (.476) | .955" | 32.4 (1.275") | |
| .45 Remington-Thompson | rimless straight | 11.35 (.447) | 11.94 (.470") | - | 11.99 (.472") | 11.96 (.471") | 28.45 (1.120) | - |
| .45 Winchester Magnum | rimless straight | 11.48 (.452) | 12.01 (.473) | – | 12.09 (.476) | 12.19 (.480) | 30.43 (1.198) | 40.00 (1.575) |
| .455 Webley Auto .455 Webley .455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI.The .455 cartridge was a service revolver cartridge, featuring a rimmed cartridge firing a .45 bullet at the relatively low velocity of 650 ft/s... |
semi-rimmed straight | 11.56 (.455) | – | – | – | – | – | - |
Revolver cartridges
| Name | Case type | Bullet diameter | Neck diameter | Shoulder diameter | Base diameter | Rim diameter | Case length | Cartridge length |
|---|---|---|---|---|---|---|---|---|
| 11mm French Ordnance 11mm French Ordnance The 11 mm M1873 ammunition round intended for the 11 mm MAS 1873-1874 revolver was in service with the French Army. Its case is rimmed and is loaded with black powder. The velocity and power of the first variant, equivalent to the 6.35 mm, was weak for its time... |
rimmed straight | 10.8 (.425) | 11.40 (.449) | – | 11.68 (.460) | 12.47 (.491) | 18.03 (.71) | 29.97 (1.18) |
| 11mm German Service | rimmed straight | 10.82 (.426) | 11.40 (.449) | – | 11.51 (.453) | 12.93 (.509) | 24.38 (.96) | 30.73 (1.21) |
| .44 S&W Russian | rimmed straight | 10.89 (.429) | 11.61 (.457) | – | 11.61 (.457) | 13.08 (.515) | 24.64 (.97) | 36.32 (1.43) |
| .44 (S&W) Special .44 Special The .44 Special or .44 S&W Special is a smokeless powder center fire metallic cartridge developed by Smith & Wesson in 1907 as the standard chambering for their New Century revolver, introduced in 1908.-Development history:... |
rimmed straight | 10.89 (.429) | 11.61 (.457) | – | 11.61 (.457) | 13.06 (.514) | 29.46 (1.16) | 41.15 (1.62) |
| .44 Remington Magnum .44 Magnum The .44 Remington Magnum, or simply .44 Magnum, is a large-bore cartridge originally designed for revolvers. After introduction, it was quickly adopted for carbines and rifles... |
rimmed straight | 10.89 (.429) | 11.61 (.457) | – | 11.61 (.457) | 13.06 (.514) | 32.78 (1.29) | 40.89 (1.61) |
| .44 Webley (.442 R.I.C.) | rimmed straight | 11.07 (.436) | 11.94 (.470) | – | 11.99 (.472) | 12.78 (.503) | 17.53 (.69) | 27.94 (1.10) |
| .44 S&W American | rimmed straight | 11.02 (.434) | 11.13 (.438) | - | 11.18 (.440) | 12.85 (.506) | 23.11 (.91) | 36.58 (1.44) |
| .44 Bulldog .44 Bulldog The .44 Bull Dog was an American centerfire revolver cartridge produced from 1880s until 1930s. No known firearm was chambered exclusively for the .44 Bull Dog cartridge: It was a shorter and less powerful option for use in revolvers chambered for the .44 Webley cartridge... |
rimmed straight | 11.18 (.440) | 11.94 (.470) | – | 12.01 (.473) | 12.78 (.503) | 14.48 (.57) | 24.13 (.95) |
| .44 Colt .44 Colt The .44 Colt was an American centerfire revolver cartridge produced commercially from 1871 until the 1940s.The cartridge was developed for the United States Army, and introduced by Colt's Patent Firearms around 1871... |
rimmed straight | 11.25 (.443) | 11.43 (.450) | – | 11.58 (.456) | 12.27 (.483) | 27.94 (1.10) | 38.1 (1.50) |
| 11.75mm Montenegrin | rimmed straight | 11.30 (.445) | 11.99 (.472) | – | 12.45 (.490) | 14.10 (.555) | 35.56 (1.40) | 43.94 (1.73) |
| .45 Webley | rimmed straight | 11.48 (.452) | 11.96 (.471) | – | 11.96 (.471) | 12.80 (.504) | 30.83 (.82) | 29.21 (1.15) |
| .45 Auto Rim | rimmed straight | 11.48 (.452) | 22.81 (.898) | – | 12.09 (.476) | 12.01 (.473) | 32.00 (1.260) | 29.72 (1.17) |
| .454 Casull .454 Casull The .454 Casull is a firearm cartridge, developed in 1957 by Dick Casull and Jack Fulmer. It was first announced in November 1959 by Guns & Ammo magazine. The basic design was a lengthened and structurally improved .45 Colt case... |
rimmed straight | 11.48 (.452) | 12.19 (.480) | - | 12.19 (.480) | 13.00 (.512) | 34.92 (1.375) | 45.62 (1.796) |
| .454 Magnum | rimmed straight | 11.53 (.454) | 12.24 (.482) | – | 12.90 (.508) | 13.51 (.532) | 50.80 (2.00) | 66.04 (2.60) |
| .45 S&W Schofield .45 Schofield The .45 Schofield or .45 Smith & Wesson is a revolver cartridge developed by Smith & Wesson for their S&W Model 3 American top-break revolver. It is similar to the .45 Colt round though shorter and with a slightly larger rim, and will generally work in revolvers chambered for that cartridge... |
rimmed straight | 11.53 (.454) | 12.12 (.477) | – | 12.09 (.476) | 13.26 (.522) | 28.14 (1.108) | 36.32 (1.43) |
| .45 Colt .45 Colt The .45 Colt cartridge is a handgun cartridge dating to 1872. It began as a black powder revolver round developed for the Colt Single Action Army revolver, but is offered as a magnum level handgun hunting round in modern usage. This cartridge was adopted by the U.S. Army in 1873 and served as the... (.45 Long Colt) |
rimmed straight | 11.53 (.454) | 12.12 (.476) | – | 12.19 (.48) | 13.00 (.512) | 32.78 (1.29) | 40.64 (1.60) |
| .455 Webley .455 Webley .455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI.The .455 cartridge was a service revolver cartridge, featuring a rimmed cartridge firing a .45 bullet at the relatively low velocity of 650 ft/s... Mk2 |
rimmed straight | 11.53 (.454) | 12.09 (.476) | – | 12.19 (.480) | 13.59 (.535) | 19.56 (.77) | 31.24 (1.23) |
| .450 Revolver .450 Adams The .450 Adams was a British black powder centrefire revolver cartridge, initially used in converted Beaumont-Adams Revolvers, in the late 1860s... (.455) |
rimmed straight | 11.56 (.455) | 12.07 (.475) | – | 12.12 (.477) | 12.95 (.51) | 17.53 (.69) | 27.94 (1.1) |
| .455 Enfield .455 Webley .455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI.The .455 cartridge was a service revolver cartridge, featuring a rimmed cartridge firing a .45 bullet at the relatively low velocity of 650 ft/s... (.455 Colt) |
rimmed straight | 11.56 (.455) | 12.01 (.473) | – | 12.14 (.478) | 13.46 (.53) | 22.10 (.87) | 34.29 (1.35) |
| .460 S&W Magnum | rimmed straight | 11.48 (.452) | 12.14 (.478) | - | 12.14 (.478) | 12.14 (.478) | 45.72 (1.80) | 58.17 (2.290) |
| .476 Enfield .476 Enfield The .476 Enfield is a British centrefire black powder revolver cartridge.... (.476 Eley, .476/.455) |
rimmed straight | 11.56 (.455) | 12.04 (.474) | – | 12.14 (.478) | 13.46 (.530) | 22.01 (.870) | 33.78 (1.33) |
Rifle cartridges
| Name | Case type | Bullet diameter | Neck diameter | Shoulder diameter | Base diameter | Rim diameter | Case length | Cartridge length |
|---|---|---|---|---|---|---|---|---|
| .44-40 Winchester | rimmed straight | 10.85 (.427) | 15.44 (.443) | – | 11.96 (.471) | 13.33 (.525) | 33.27 (1.31) | 39.37 (1.55) |
| .444 Marlin .444 Marlin The .444 Marlin is a rifle cartridge designed in 1964 by Marlin Firearms and Remington Arms. It was designed to fill in a gap for the older .45-70 at a time when that cartridge was not currently available in any lever action, making it the largest at the time available lever-action cartridge... |
rimmed straight | 10.9 (.429) | 11.51 (.453) | – | 11.91 (.469) | 13.06 (.514) | 54.91 (2.162) | 65.28 (2.57) |
| 10.4mm Italian M/70 | rimmed bottleneck | 10.92 (.430) | 11.1 (.437) | 13.13 (.517) | 13.72 (.54) | 16.1 (.634) | 47.5 (1.87) | 62.48 (2.46) |
| 10.4mm Russian Berdan Hiram Berdan Hiram Berdan was an American engineer, inventor and military officer, world-renowned marksman, and guiding force behind and commanding colonel of the famed United States Volunteer Sharpshooter Regiments during the American Civil War... |
rimmed bottleneck | 10.92 (.430) | 11.4 (.449) | 12.85 (.506) | 14.4 (.567) | 16.18 (.637) | 56.9 (2.24) | 74.93 (2.95) |
| 11mm Murata Murata rifle The Murata Rifle was the first indigenously produced Japanese service rifle adopted in 1880 as the Murata Type 13. The 13 referred to the adoption date, the year 13 in the Meiji period according to the Japanese calendar.... |
rimmed bottleneck | 10.97 (.432) | 11.81 (.465) | 13.36 (.526) | 13.77 (.542) | 16.05 (.632) | 59.94 (2.36) | 79.5 (3.13) |
| 11mm Belgian Albini Albini -Surname:*Alfred Albini, a Croatian architect*Franco Albini*Roger Albini*Steve Albini*William de Albini or William d'Albini*Albinus , a Roman family name-Objects:*Albini-Braendlin rifle, a single-shot Belgian rifle adopted in 1867... |
rimmed bottleneck | 11.05 (.435) | 11.99 (.472) | 13.59 (.535) | 14.73 (.580) | 17.22 (.678) | 50.8 (2.00) | 66.04 (2.60) |
| .425 Westley Richards Magnum | rimless rebated | 11.05 (.435) | 11.58 (.456) | 13.72 (.540) | 13.79 (.543) | 11.86 (.467) | 67.06 (2.64) | 83.82 (3.30) |
| 11mm Belgian Comblain | rimmed bottleneck | 11.07 (.436) | 11.68 (.460) | 13.51 (.532) | 14.61 (.575) | 17.09 (.673) | 53.34 (2.10) | 70.1 (2.76) |
| 11.15mm Spanish Remington Remington - People :* Eliphalet Remington , American firearms designer* Philo Remington , American firearms and typewriter manufacturer, son of Eliphalet Remington* Frederic Remington , American painter and sculptor... |
rimmed bottleneck | 11.05 (.439) | 11.63 (.458) | 13 (.512) | 13.11 (.516) | 16.13 (.635) | 57.15 (2.25) | 71.63 (2.82) |
| 11.2x60mm Schuler Schuler Schuler is the surname of:* Ella Schuler, American supercentenarian* Franz Schuler , Austrian biathlete* Hans Schuler, American sculptor* Markus Schuler, German soccer player* Max Schuler, German engineer, first described the Schuler tuning... (Mauser Mauser Mauser was a German arms manufacturer of a line of bolt-action rifles and pistols from the 1870s to 1995. Mauser designs were built for the German armed forces... ) |
rebated rimless | 11.18 (.440) | 11.81 (.465) | 13.00 (.512) | 13.00 (.512) | 11.81 (.465) | 59.69 (2.35) | 72.64 (2.86) |
| 11.2x72mm Schuler | rebated rimless | 11.18 (.440) | 11.81 (.465) | 12.95 (.51) | 13.61 (.536) | 11.91 (.469) | 71.12 (2.80) | 97.79 (3.85) |
| 10.8x47Rmm Martini Target | rimmed bottleneck | 11.20 (.441) | 11.76 (.463) | 13.00 (.512) | 13.11 (.516) | 15.01 (.591) | 44.45 (1.75) | 56.64 (2.23) |
| 11.15mm Werndl M/77 | rimmed bottleneck | 11.2 (.441) | 11.84 (.466) | 13.61 (.536) | 13.84 (.545) | 15.67 (.617) | 57.66 (2.27) | 76.71 (3.02) |
| 11mm French Gras | rimmed bottleneck | 11.3 (.445) | 11.89 (.468) | 13.49 (.531) | 13.82 (.544) | 16.94 (.667) | 59.44 (2.34) | 76.2 (3.00) |
| 11.15mm Mauser Mauser Mauser was a German arms manufacturer of a line of bolt-action rifles and pistols from the 1870s to 1995. Mauser designs were built for the German armed forces... |
rimmed bottleneck | 11.33 (.446) | 11.81 (.465) | 12.95 (.510) | 13.11 (.516) | 14.88 (.586) | 60.2 (2.37) | 76.2 (3.00) |
| 11.43mm Turkish | rimmed bottleneck | 11.35 (.447) | 12.04 (.474) | 14.22 (.560) | 14.78 (.582) | 16.97 (.668) | 58.42 (2.30) | 79.56 (3.12) |
| 11.43mm Egyptian | rimmed bottleneck | 11.38 (.448) | 12.17 (.479) | 13.77 (.542) | 14.76 (.581) | 16.97 (.668) | 49.28 (1.94) | 69.34 (2.73) |
| 11.4mm Werndl M/73 | rimmed straight | 11.4 (.449) | 11.99 (.472) | – | 12.52 (.493) | 14.5 (.571) | 50.04 (1.97) | 64.77 (2.55) |
| .500/450 Black Powder No.2 Musket | rimmed bottleneck | 11.46 (.451) | 12.34 (.486) | 13.59 (.535) | 14.63 (.576) | 16.84 (.663) | 59.94 (2.36) | 75.95 (2.99) |
| 11.4mm Brazilian Comblain | rimmed bottleneck | 11.48 (.452) | 12.55 (.494) | 13.46 (.530) | 14.94 (.588) | 17.32 (.682) | 51.31 (2.02) | 66.55 (2.62) |
| 11.5mm Spanish Reformado | rimmed straight | 11.53 (.454) | 12.34 (.486) | – | 13.34 (.525) | 16.03 (.631) | 57.4 (2.26) | 77.72 (3.06) |
| 11.7mm Danish Remington Remington - People :* Eliphalet Remington , American firearms designer* Philo Remington , American firearms and typewriter manufacturer, son of Eliphalet Remington* Frederic Remington , American painter and sculptor... |
rimmed straight | 11.53 (.455) | 12.34 (.486) | – | 13.06 (.514) | 14.71 (.579) | 51.05 (2.01) | 62.23 (2.45) |
| .500/450 Magnum Nitro Express | rimmed bottleneck | 11.56 (.455) | 12.12 (.479) | 12.7 (.500) | 14.48 (.570) | 16.36 (.644) | 82.55 (3.25) | 99.18 (3.91) |
| .450 No.2 Express (3½") | rimmed bottleneck | 11.56 (.455) | 12.12 (.477) | 13.16 (.518) | 11.79 (.464) | 16.51 (.650) | 88.9 (3.50) | 108.71 (4.28) |
| .577/450 Martini-Henry .577/450 Martini-Henry The .577/450 Martini-Henry was a black powder, centerfire round used by the British and British Empire militaries prior to the adoption of the .303 calibre cartridge used in the Lee-Metford, Martini-Enfield, and Lee-Enfield series of rifles alongside the Nepalese Bira gun... |
rimmed bottleneck | 11.56 (.455) | 12.37 (.487) | 15.95 (.628) | 16.97 (.668) | 18.95 (.746) | 59.44 (2.34) | 79.56 (3.12) |
| .45-70 Government .45-70 The .45-70 rifle cartridge, also known as .45-70 Government, was developed at the U.S. Army's Springfield Armory for use in the Springfield Model 1873... |
rimmed straight | 11.63 (.457) | 12.07 (.475) | – | 12.7 (.500) | 15.24 (.600) | 53.34 (2.1) | 68.58 (2.7) |
| .450 Marlin .450 Marlin The .450 Marlin is a firearms cartridge designed as a modernized equivalent to the venerable .45-70 lever-action cartridge. It was designed by a joint team of Marlin and Hornady engineers headed by Hornady's Mitch Mittelstaedt, and was released in 2000, with cartridges manufactured by Hornady and... |
belted straight | 11.63 (.458) | 12.14 (.478) | – | 13.03 (.513) | 13.51 (.532) | 53.34 (2.100) | 64.77 (2.550) |
| 11mm Beaumont M/71/78 | rimmed bottleneck | 11.63 (.457) | 12.29 (.484) | 13.41 (.528) | 14.63 (.576) | 16.89 (.665) | 51.82 (2.04) | 64.52 (2.54) |
| .450 Nitro Express .450 Nitro Express .450 Nitro Express designed for the purpose of hunting large game such as elephant. This cartridge is used almost exclusively in single shot and double express rifles for hunting at the Tropics or hot climates in general and is a cartridge associated with the Golden Age of African safaris and... (3¼") |
rimmed straight | 11.63 (.458) | 12.12 (.479) | – | 13.92 (.548) | 15.9 (.626) | 82.55 (3.25) | 97.79 (3.85) |
| .458 Winchester Magnum .458 Winchester Magnum The .458 Winchester Magnum is a belted, straight-taper cased, dangerous game rifle cartridge. It was introduced commercially in 1956 by Winchester and first chambered in the Winchester Model 70 African rifle. It was designed to compete against the .450 Nitro Express and the .470 Nitro Express... |
belted straight | 11.63 (.458) | 12.14 (.478) | – | 13.03 (.513) | 13.51 (.532) | 63.5 (2.5) | 82.55 (3.350) |
| .460 Weatherby Magnum .460 Weatherby Magnum The .460 Weatherby Magnum is a belted, bottlenecked rifle cartridge, developed by Roy Weatherby in 1957. The cartridge is based on the .378 Weatherby Magnum necked up to accept the bullet. The original .378 Weatherby Magnum parent case was inspired by the .416 Rigby... |
belted bottleneck | 11.63 (.458) | 12.32 (.485) | 14.22 (.560) | 14.80 (.583) | 13.54 (.533) | 74 (2.91) | 95.25 (3.75) |
| .500/450 No.1 Express | rimmed bottleneck | 11.63 (.458) | 12.32 (.485) | 13.46 (.530) | 14.66 (.577) | 16.76 (.660) | 69.85 (2.75) | 82.55 (3.25) |
| .450 Rigby Match | rimmed straight | 11.71 (.461) | 11.99 (.472) | – | 12.88 (.507) | 15.19 (.598) | 60.96 (2.40) | 93.98 (3.70) |
| 11.3mm Beaumont M/71 | rimmed bottleneck | 11.63 (.464) | 12.34 (.486) | 13.46 (.530) | 14.76 (.581) | 16.92 (.666) | 50.04 (1.97) | 63.25 (2.49) |
| .500/465 Nitro Express | rimmed bottleneck | 11.84 (.466) | 12.39 (.488) | 13.31 (.524) | 14.55 (.573) | 16.51 (.650) | 82.3 (3.24) | 98.04 (3.89) |
See also
- 2 mm (.079 in)2 mm caliberThis article lists firearm cartridges which have a bullet in the .079 in / 2 mm caliber range.Length refers to the cartridge case length. OAL refers to the overall length of the cartridge...
– 3 mm (.118 in)3 mm caliberThis article lists firearm cartridges which have a bullet in the .118 in / 3 mm caliber range.Length refers to the cartridge case length.OAL refers to the overall length of the cartridge.All measurements are in mm .-.118 in / 3 mm auto cartridges:...
– 4 mm (.157 in)4 mm caliberThis article lists firearm cartridges which have a bullet in the .172 in / 4.5mm caliber range.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.All measurements are in mm .-Rimfire cartridges:...
– 5 mm (.197 in)5 mm caliberThis article lists firearm cartridges which have a bullet in the to caliber range.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.All measurements are in mm .-Rimfire cartridges:...
– 6 mm (.236 in)6 mm caliberThis article lists firearm cartridges which have a bullet caliber between and .*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.All measurements are in mm .-Pistol cartridges:-.24in :...
– 7 mm (.276 in)7 mm caliberThis article lists firearm cartridges which have a bullet in the to caliber range.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge....
– 8 mm (.315 in)8 mm caliberThis article lists firearm cartridges which have a bullet in the to caliber range.*Length refers to the empty cartridge case length.*OAL refers to the overall length of the loaded cartridge.All measurements are in mm .-Pistol cartridges:...
– 9 mm (.354 in)9 mm caliberThis article lists firearm cartridges which have a bullet in the caliber range. The most prevalent of these rounds is the 9x19mm Parabellum.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge....
– 10 mm (.394 in)10 mm caliberThis article lists firearm cartridges which have a bullet in the caliber range.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.All measurements are in mm .-Pistol cartridges:...
– 11 mm (.433 in) – 12 mm (.472 in)12 mm caliberThis article lists firearm cartridges which have a bullet in the to caliber range.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.*Bullet refers to the diameter of the bullet....
– 13 mm (.5118 in)13 mm caliberThis article lists firearm cartridges which have a bullet in the caliber range and greater.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.*Bullet refers to the diameter of the bullet.... - List of cartridges by caliber
- List of handgun cartridges
- List of rifle cartridges
- .50 caliber handguns.50 caliber handgunsA .50 caliber handgun is a handgun firing a bullet measuring approximately .5 inches in diameter. Historically, many black powder pistols fire rounds with diameters well above ½ inch...