Handgun Calibers (103)
       .22 Jet (.22 Center Fire Magnum)
       .22 TCM (Tuason-Craig MicroMagnum)
       .22 TCM 9R
       .25 ACP (.25 Auto, 6.35mm)
       .25 NAA
       .256 Win Mag
       .30 Luger (7.65mm x 21mm)
       .30 Super Carry
       .32 ACP (.32 Auto, 7.65 Browning)
       .32 H&R Mag (Harrington & Richardson Magnum)
       .32 Long Colt
       .32 NAA
       .32 S&W
       .32 S&W Long (Colt New Police)
       .32 Short Colt
       .320 Long
       .320 Short
       .327 Federal Mag
       .356 TSW
       .357 Mag
       .357 Rem Max (Super Magnum)
       .357 SIG
       .375 JDJ (J. D. Jones)
       .38 Auto
       .38 Long Colt
       .38 S&W
       .38 Short Colt
       .38 Special
       .38 Special Short
       .38 Super Auto
       .38 Super Comp
       .38-40 Win
       .38/200
       .380 Auto
       .380 Long
       .40 S&W
       .40 Super
       .400 Cor-Bon
       .41 Action Express
       .41 Long Colt
       .41 Rem Mag
       .41 Special
       .429 Desert Eagle
       .44 AMP (Auto Mag Pistol)
       .44 Colt
       .44 Mag
       .44 S&W Russian
       .44 S&W Special
       .440 Cor-Bon
       .445 SuperMag
       .45 ACP/Auto
       .45 Auto Rim
       .45 Colt (.45 Long Colt)
       .45 GAP
       .45 HP
       .45 Schofield
       .45 Special
       .45 Super
       .45 Win Mag
       .450 AutoBond
       .450 Short (.450 Adams, .450 Boxer Mk I, .450 Revolver, .450 Colt, .450 Corto, .450 Mark III)
       .454 Casull
       .455 Webley
       .460 Rowland
       .460 S&W Mag
       .475 Linebaugh
       .475 Wildey Magnum
       .480 Ruger
       .50 Action Express
       .50 GI
       .500 JRH
       .500 Linebaugh
       .500 S&W Mag
       .500 S&W Special
       .500 Wyoming Express
       10mm Auto
       10mm Magnum
       4.6x30mm
       5.75mm Velo-Dog
       5.7x28mm
       7.5 FK
       7.5mm Swiss Ordnance
       7.62x25mm Tokarev
       7.62x38R Nagant (Revolver)
       7.63x25mm Mauser (.30 Mauser Automatic)
       7.65x20mm Longue
       8mm Gasser
       8mm Lebel Revolver (8mm/92, 8x27R, 8mm French Ordnance)
       8mm Roth Steyr
       8x22mm Nambu
       9mm Luger (9x19 Parabellum)
       9mm Major
       9mm Makarov (9x18 Makarov)
       9mm Super Comp (9x23)
       9mm Winchester Magnum (9x29mm Win Mag)
       9x18mm Ultra (9mm Police)
       9x20mm Browning Long
       9x21mm
       9x23mm Largo
       9x23mm Steyr
       9x23mm Win
       9x25mm Dillon
       9x25mm Mauser

Rimfire Calibers (16)
       .17 HM2 (Hornady Mach 2)
       .17 HMR (Hornady Magnum Rimfire)
       .17 PMC/Aguila
       .17 WSM (Winchester Super Magnum)
       .22 BB (6MM Flobert)
       .22 CB
       .22 Long
       .22 Mag (.22 WMR)
       .22 Short
       .22 Win Auto
       .22 Win Rimfire
       .22LR
       .32 Rimfire Long
       .41 Short Rimfire
       5mm Rem Rimfire Mag
       9mm Flobert

Rifle Calibers (324)
       .17 Hornet
       .17 Rem
       .17 Rem Fireball
       .20 Tactical
       .20 VarTarg
       .204 Ruger
       .218 Bee
       .219 Zipper
       .22 Creedmoor
       .22 Hornet
       .22 Nosler
       .22 PPC
       .22 Spitfire (5.7mm Johnson)
       .22-250
       .220 Russian (5.6x39mm)
       .220 Swift
       .221 Fireball
       .222 Rem (5.7x43mm)
       .222 Rem Mag
       .222 Rimmed
       .223 Remington
       .223 WSSM (Winchester Super Short Mag)
       .224 Valkyrie
       .224 Weatherby Mag
       .225 Win
       .24 Nosler
       .240 Weatherby Mag
       .243 WSSM (Winchester Super Short Mag)
       .243 Win
       .25 Remington
       .25 WSSM (Winchester Super Short Mag)
       .25-06 Rem
       .25-20 Win
       .25-35 Win
       .25-36 Marlin
       .25-45 Sharps
       .250-3000 Savage
       .257 Roberts
       .257 STW (Shooting Times Westerner)
       .257 Weatherby Mag
       .26 Nosler
       .260 Rem
       .264 Win Mag
       .27 Nosler
       .270 WSM (Winchester Short Magnum)
       .270 Weatherby Mag
       .270 Win
       .277 Fury
       .277 Wolverine (6.8x39mm)
       .28 Nosler
       .280 Rem (7mm-06 Rem, 7mm Express Rem)
       .280 Rem Ackley Imp. (Remington Ackley Improved)
       .284 Win
       .30 Carbine
       .30 Gibbs
       .30 H&H Super Flanged
       .30 Nosler
       .30 Rem AR
       .30 Remington
       .30 TC (Thompson Center)
       .30 WWG (Wild West Magnum)
       .30-06
       .30-30 Win
       .30-378 Weatherby Mag
       .30-40 Krag (.30 Army)
       .300 AAC Blackout (7.62x35mm)
       .300 Blaser Mag
       .300 Dakota
       .300 H&H (Holland & Holland)
       .300 HAM'R
       .300 Norma Mag
       .300 PRC
       .300 Pegasus
       .300 RCM (Ruger Compact Magnum)
       .300 RUM (Remington Ultra Magnum)
       .300 Rem SAUM (Short Action Ultra Magnum)
       .300 Rook (.295 Rook)
       .300 Savage
       .300 Sherwood (.300 Westley, .300 Extra Long)
       .300 WSM (Winchester Short Magnum)
       .300 Weatherby Mag
       .300 Whisper (.300 Warrior Carbine, .300 Fireball, .300 .300-221)
       .300 Win Mag
       .303 British
       .303 Savage
       .307 Win
       .308 Marlin Express
       .308 Norma Mag
       .308/7.62x51mm (.308 Winchester)
       .310 Cadet (.310 Greener, .310 Martini)
       .318 Westley Richards
       .32 Ideal
       .32 Remington
       .32 WSL (Winchester Self-Loading)
       .32 Win Special
       .32-20 Win (.32 WCF, .32-20 Marlin, .32 Colt Lightning)
       .32-40 Win (.32-40 Ballard)
       .325 WSM (Winchester Short Magnum)
       .33 Nosler
       .33 WCF (Winchester Center Fire)
       .333 Jeffery (Rimless or Flanged)
       .333 Jeffery Flanged (.333 Jeffery Rimmed, .333 Flanged Nitro Express)
       .338 Blaser Mag
       .338 Excalibur
       .338 Federal
       .338 Lapua Mag
       .338 Marlin Express
       .338 Norma Mag
       .338 RCM (Ruger Compact Magnum)
       .338 RUM (Remington Ultra Magnum)
       .338 Spectre
       .338 Whisper
       .338 Win Mag
       .338-06
       .338-378 Weatherby Mag
       .340 Weatherby Mag
       .348 Win
       .35 Rem
       .35 WSL (Winchester Self-Loading)
       .35 WWG (Wild West Magnum)
       .35 Whelen
       .35 Win
       .350 Legend
       .350 Rem Mag
       .350 Rigby
       .351 WSL (Winchester Self-Loading)
       .356 Win
       .358 Norma Mag
       .358 ST Alaskan (Shooting Times Alaskan)
       .358 Win
       .360 Nitro Express
       .360 No. 2 Nitro Express
       .370 Sako Mag
       .375 Blaser Mag
       .375 CheyTac (Cheyenne Tactical)
       .375 Dakota
       .375 Flanged Nitro (Flanged Magnum Nitro Express)
       .375 H&H Mag (Holland & Holland Mangum)
       .375 RUM (Remington Ultra Magnum)
       .375 Raptor
       .375 Ruger
       .375 SOCOM
       .375 Weatherby Mag
       .375 Whisper
       .375 Win
       .376 Steyr
       .378 Weatherby Mag
       .38-55 Win
       .38-56
       .40-60
       .40-65 Win
       .40-70 Sharps
       .40-82 Win
       .40-90 Sharps
       .400 A-Square (.400 Pondoro)
       .400 Nitro Express
       .400 Whelen
       .400-360 Thin Rim Evans
       .400-360 Thin Rim Fraser
       .400-360 Thin Rim Purdey
       .400-360 Thin Rim Richards
       .401 WSL (Winchester Self-Loading)
       .404 Jeffery (10.75 x 73)
       .405 Win
       .408 CheyTac (Cheyenne Tactical)
       .416 Barrett
       .416 Rem Mag
       .416 Rigby
       .416 Ruger
       .416 Taylor
       .416 Weatherby Mag
       .423 Mauser (10.75x68mm Mauser)
       .425 Westley Richards
       .43 Beaumont
       .43 Egyptian (11.43x50mmR)
       .43 Spanish
       .44-40 Win
       .44-77 Sharps
       .444 Marlin
       .45 Basic
       .45 Raptor
       .45-100 Sharps
       .45-110
       .45-120
       .45-60
       .45-70
       .45-75
       .45-90
       .450 Ackley Mag
       .450 Assegai
       .450 Bushmaster
       .450 Marlin
       .450 Nitro (Nitro Express)
       .450 Rigby
       .450-400 Nitro (Nitro Express)
       .457 WWG (Wild West Magnum)
       .458 HAM'R
       .458 Lott
       .458 SOCOM
       .458 Win Mag
       .460 Short A-Square
       .460 Weatherby Mag
       .470 Capstick
       .470 Nitro Express
       .475 Nitro (Nitro Express)
       .475 No. 2 Nitro Express
       .475 Turnbull
       .495 A-Square
       .50 Alaskan
       .50 BMG (.50 Browning Machine Gun, 12.7x99mm NATO)
       .50 Beowulf (12.7x42mm)
       .50-110
       .50-70
       .50-90
       .50-95
       .500 A-Square
       .500 Auto Max
       .500 Jeffery
       .500 Nitro Express
       .500-416 Nitro Express
       .500-450 Number 2
       .500-465 Nitro Express
       .505 Gibbs
       .510 DTC
       .510 Whisper
       .56-50
       .577 Nitro Express
       .577 Snider
       .577-450 Martini-Henry
       .577-500 Number 2
       10.15x61mmR
       11.15x58mmR (11mm Werndl)
       11.2x72mm Schuler
       11.7x51mm Danish
       11mm Mauser (11x60mmR Mauser, .43 Mauser)
       12.7x108mm
       12.7x44mm Rimmed Danish
       20mm Caliber
       450 Alaskan
       5.45x39mm
       5.56x45mm NATO
       5.6 x 52R (.22 Savage Hi-Power)
       5.6x33mmR
       5.6x50mm Rimmed
       6.5 SAUM 4S
       6.5 Weatherby RPM
       6.5-06
       6.5-284 Norma
       6.5-300 Weatherby Magnum
       6.5X52mmR
       6.5mm Creedmoor
       6.5mm Grendel
       6.5mm PRC
       6.5mm Rem Mag (.264 Durham Magnum)
       6.5x257 Roberts
       6.5x47mm Lapua
       6.5x50mm Japanese (6.5x50 Arisaka)
       6.5x52mm Carcano (6.5x52mm Mannlicher-Carcano)
       6.5x53mm Mannlicher
       6.5x54mm Schonauer (Mannlicher-Schonauer)
       6.5x55mm
       6.5x57mm
       6.5x58mmR
       6.8 Western
       6.8mm Rem SPC
       6mm ARC
       6mm Benchrest WSM
       6mm Creedmoor
       6mm Dasher
       6mm GT
       6mm Norma BR
       6mm PPC
       6mm Rem
       6mm Super LR
       6mm XC
       6x45mm (6mm-223)
       6x47mm Lapua
       6x70R
       7-30 Waters
       7.35x51mm Carcano
       7.5x54mm French
       7.5x55mm Swiss
       7.62x39mm
       7.62x45mm
       7.62x53R
       7.62x54R
       7.65x53R
       7.65x53mm Argentine (7.65x53mm Mauser)
       7.7 Japanese (7.7x58mm)
       7.82 Patriot
       7.92x33mm Kurz (8mm Kurz)
       7mm BR
       7mm Blaser Magnum
       7mm LRM (Long Range Magnum)
       7mm Mauser (7x57 Mauser, .275 Rigby)
       7mm RUM (Remington Ultra Magnum)
       7mm Rem Mag
       7mm Rem SAUM (Short Action Ultra Magnum)
       7mm STW (Shooting Times Westerner)
       7mm WSM (Winchester Short Magnum)
       7mm Weatherby Mag
       7mm x 57 Rimmed
       7mm-08 Rem
       7x61 Sharpe & Hart Mag (7x61 Super)
       7x64mm
       7x65R
       8.6 Blackout
       8mm Breda
       8mm Mauser (7.92x57mm, 8x57 IS/JS)
       8mm Rem Mag
       8x50R Lebel (8mm Lebel)
       8x56mmR
       8x57 IRS/JRS
       8x58mmR (8x58mmRD)
       8x60mm S
       8x68mm S
       9.3x57mm
       9.3x62mm
       9.3x64mm Brenneke
       9.3x72mm
       9.3x74R
       9.5x47mmR
       9x39mm
       9x57mm Mauser

Shotgun Calibers (8)
       .410 Bore
       10 Gauge
       12 Gauge
       16 Gauge
       20 Gauge
       24 Gauge
       28 Gauge
       32 Gauge