This is a list of modern day pistol/handgun rounds

• 2.34mm - rimfire round used in MTH's Swiss Mini Gun.
• 2.7mm Kolibri
• 3mm Kolibri
• 4mm Practice Cartridge GECO
• 4mm Practice Cartridge M. 20
• 4.25mm Liliput (4.25 mm Erika)
• .17 Mach 2
• .17 Hornady Magnum Rimfire
• .17-357 RG
• 4.5x26mm
• 4.6x30mm
• 5mm Bergmann
• 5mm Bergmann Rimless
• 5mm Clement
• 5.5mm Velo Dog
• .22 BB
• .22 CB
• .22 Short
• .22 Long
• .22 Long Rifle
• .22 WMR (.22 Magnum)
• .22 Reed Express
• .22 Remington Jet (.22 Jet, .22 Centerfire Magnum)
• .221 Remington Fireball
• .224 BOZ
• 5.45x18mm (5.45mm PSM)
• 5.7x28mm
• 5.8x21mm (5.8mm Chinese pistol)
• .25 ACP (6.35 mm Browning)
• 6.5mm Bergmann
• .25 NAA
• .256 Winchester Magnum
• 7x20mm Nambu
• 7mm Bench Rest Remington (7mm BR)
• 7.5mm 1882 Ordnance
• 7.65mm Brev.
• 7.62x25mm Tokarev
• 7.62x38mmR (7.62x38mm Nagant)
• 7.62x42mm SP-4 (a Russian cartridge with an internal piston for silent operation)
• 7.63x25mm Mauser
• 7.65x25mm Borchardt
• 7.65mm Roth-Sauer (7.65mm Frommer)
• 7.65x21mm Parabellum (7.65x22mm Luger, .30 Luger)
• 7.65mm Longue (7.65mm MAS, 7.65mm Long)
• 7.65mm Mannlicher (7.63mm Mannlicher in Austria, 7.65x21mm in the United States)
• .30 Wildey (.30 Wildey Magnum)
• .32 ACP (7.65x17mm Browning SR)
• 7.62x17mm Type 64 (7.62x17mm, 7.62x17mm Chinese)
• .32 NAA
• .32 S&W
• .32 S&W Long (.32 Colt New Police)
• .320 Revolver
• .32 Short Colt
• .32 Long Colt
• .32 H&R Magnum
• .327 Federal Magnum
• .32-20 Winchester (.32 WCF, .32-20 Marlin, .32 Colt Lightning)
• 8mm French Ordnance (8mm Lebel Revolver)
• 8mm Gasser (Rast-Gasser M1898)
• 8mm Pieper
• 8mm Roth-Steyr
• 8x22mm Nambu
• .35 S&W Auto (.35 Automatic)
• 8.5mm Mars
• .380 Russian
• .38 Short Colt
• .38 Long Colt
• .38 S&W (.38 Colt New Police, .38 Super Police)
• .38 Calibre
• .380 Revolver
• 9.1mm Abadie
• .380 Webley (.38/200)
• .38 Special (9x29mmR)
• .356 TSW
• .357 AutoMag (.357 AMP)
• .357 Magnum (9x31mmR, .353 Casull [hunting load by CorBon for Freedom Arms revolver, 180 gr @ 1650 ft/s[1]])
• .357 Super Magnum
• .357 Remington Maximum
• .360 DW (.360 Dan Wesson)
• .357 Peterbilt (.357 Wildey Magnum)
• .357/44 Bain & Davis
• 9x18mm Makarov
• 9x18mm Police (9mm Ultra)
• 9mm Browning Long (9x20mm Browning SR)
• 9mm Glisenti
• 9x19mm Parabellum (9mm Luger, 9x19mm NATO)
• 9mm Federal
• 9x21mm IMI
• 9x21mm Gyurza (9x21mm SP-10)
• 9mm Action Express (9mm AE)
• 9x23mm Steyr
• 9mm Largo (9mm Bergmann-Bayard, 9x23mm Largo)
• 9mm Super Cooper (9x22mm Super Cooper)
• 9x23mm Winchester
• 9mm Mars
• 9x25mm Mauser (Export caliber for C96)
• 9mm Winchester Magnum
• 9x25mm Dillon
• 9x25mm Super Auto G
• 9x30mm Magnum (9mm Dillon Magnum)
• .380 ACP (9x17mm Browning Short)
• .38 AMU (rimless .38 Special)
• .38 ACP (.38 Auto)
• .38 Super Auto
• .38 Super Comp (a rimless .38 Super development)
• .38/.45 Clerke (wildcat developed in the 1960s by Bo Clerke)
• .38 Casull
• .357 SIG
• .357/45 Grizzly Win Mag
• 9.8 mm Auto Colt
• .375 Super Magnum
• .38-40 Winchester (.38 WCF)
• .400 Colt Magnum
• .400 Corbon
• .40 G&A (.40 Guns & Ammo, a cut-down .30 Remington with .40" bullets)
• .40 Smith & Wesson (.40 Auto, 10 x 21 mm)
• .40 Super
• .401 Herter Magnum
• .401 Special (.401 Winchester Self-Loading trimmed to 1.218" with .38-40 WCF bullets)[2]
• 10mm Auto
• 10mm Magnum
• 10.4mm Italian Revolver (10.35 mm Italian)
• 10.4mm Swiss Centerfire
• 10.6mm German
• .41 Action Express
• .41 Avenger
• .41 JMP (.41 Jurras, .41 AutoMag)
• .41 Colt
• .41 Long Colt (.41 Colt, .41 LC)
• .41 Colt Special (developed by Remington in 1932, 1.26" case, 210 gr, 900 ft/s)[3]
• .41 Special (shortened .41 Magnum wildcat, trimmed to .44 Special length, 220 gr, 900–1200 ft/s)[4]
• .41 Remington Magnum
• .41 Wildey Magnum (10mm Wildey Magnum)
• .414 JDJ
• .414 Super Magnum see: German Wiki-version: de:.414 SuperMag
• .42 Russian
• .427 ZMR (caseless cartridge designed by Angel Arms for their .427 ZMR pistol)
• .44 American (predecessor to the .44 S&W Russian)
• .440 English
• .440 Webley
• .44 Bulldog
• .44 Smith and Wesson (shorter than .44 Special)
• .44 Colt
• .44 Remington (in Remington Army Model 1975)
• .44 Special
• .44 S&W Russian
• .44 Remington Magnum
• .44 Auto Mag
• .440 Cor-Bon
• .442 Webley (.442 Revolver Centre Fire, 10.5x17mmR, .442 Kurz, 44 Webley, or .442 R.I.C.)
• .44 Wildey Magnum (11mm Wildey Magnum)
• .44 Henry rimfire (11x23R)
• .44-40 Winchester (.44 WCF)
• .445_SuperMag (.4295 RIC)
• 11.75mm Montenegrin (11mm Austrian Gasser, 11.25x36Rmm Montenegrin)
• 11mm French Ordnance
• 11mm German Service
• 11mm Perrin
• 11.35mm Schouboe (11.35x18mm)
• .45 Schofield (.45 S&W Schofield, .45 S&W)
• .45 Colt
• .45 ICP (.45 caseless cartridge designed by Angel Arms for their Gun One pistol)
• .45 J-Mag (wildcat developed in the 1970s by John Jeffredo)
• .45 Super
• .450 Revolver (.450 Adams)
• .45 Webley
• .455 Webley (.455 Webley Mk I, .455 Revolver, .455 Colt, .455 Colt Mk I; also identical to the .476 Enfield, .476 Eley, or .476/.455)
• .455 Webley Mk II (.455 Revolver Mk II, .455 Colt Mk II, .455 Eley)
• .455 Webley Automatic
• .45 GAP
• .45 ACP (.45 Auto)
• .45 Hirtenberger Patronen (.45 Italian, .45 Automatic Short)
• .45 Auto Rim
• .45 S&W
• .45 Mars Short
• .45 Mars Long
• .45 Wildey Magnum
• .45 Winchester Magnum
• .450 SMC (.450 Triton)
• .450 Magnum Express
• .451 Detonics Magnum
• .454 Casull
• .455 SuperMag
• .458 Devastator
• .458 Maximum (a 1.6" belted cartridge derived from the .458 Winchester)
• .458 Linebaugh Maximum
• .460 S&W Magnum
• .460 Rowland
• .475 Linebaugh
• .475 Maximum
• .475 Wildey Magnum
• .480 Ruger
• .476 Enfield (.476 Enfield Mk3, .476 Eley, or .476/.455)
• 12mm Gyrojet
• 12.3x22R, 12.3x50R (family of cartridges for the Russian Udar revolver)
• 12.5x40mm STs-110 (proprietary Russian revolver cartridge, derived from 32-gauge shotshell)
• .499 Linebaugh
• .50 Special (.50 Bowen Special, same case length as .44 Special, 300-400 gr @ 700–900 ft/s [4" bbl.] on Ruger Redhawk frame)[5]
• .50 Action Express
• .500 S&W Special
• .500 S&W Magnum
• .50 Remington (M71 Army)
• .50 GI
• .500 Linebaugh
• .500 Maximum
• .500 Wyoming Express (.500 WE)
• .510 SuperMag
• 13mm Gyrojet
• .577 Boxer (.577 Eley, .577 Webley)