This is the UMC M1908 cartridge associated with the development of the .45 ACP.
UMC M1908
Comments, suggestions, contributions? Let me know
M1911 Site Search
Follow Us
M1911 Site Resources
- 1911 Care
- 1911 Images & History
- 1911 A-1 Cutaway
- Customized 1911 Pistols
- Historic 1911 Guns
- “Damn Sight” Poster from WWII
- “Tunnel Rat” in Nam
- 1905 Colt .45
- 1911 Army
- 1911A1 Pistol
- 1918 Vintage Army 1911 Colt
- 1941 Colt 1911A1
- A Texas Ranger M1911
- Colt 1910
- Colt Ace .22
- Colt Ace Olympic Issue
- Colt Commander .38 Super
- Colt Concealed Carry Officer’s
- Colt National Match
- Colt Officer’s Model
- Colt Remington 1911
- Colt Serial No. 1136
- Colt SOCOM
- Colt’s handbill bragging on the selection of the M1911
- Combat Commander and .38 Super GM
- Detonics Combat Master
- Differences between 1911 and 1911A1
- Images of WWII
- Kimber Compact In Wild Bill’s Slide
- Lightweight Commander
- M1911
- Series 70 Colt Government Model
- Singer 1911A1
- Springfield Armory AMU National Match .38 Super
- Springfield NRA
- Suppressed M1911A1 from WWII
- Swenson Commander
- Texas Ranger Capt. M. T. Gonzaullas’ Colt .45
- Texas Ranger Colt .45
- Texas Ranger Matt Cawthon’s M1911
- The Guns of the Dillinger Gang
- WWI Navy and Marine 1911’s
- Historic 1911 Pistol Visual Display
- Historical Articles On The M1911 Pistol
- .45 Auto Cartridge History
- 1911 History
- 1911 Magazine FAQ
- 45 Auto Cartridge History Files
- Arsenal Rebuilds
- Background Information on the United States Pistol Caliber .45 M1911
- Ballester-Molina
- Barrel Markings Files
- Colt1 Image
- Colt2 Image
- Colt3 Image
- Colt4 Image
- Colt5 Image
- Colt6 Image
- Colt7 Image
- Colt8 Image
- Flannery Bolt Co. Image
- High Standard Image
- Post WWII Government Contract Image
- Remington-UMC Image
- Singer Image
- Springfield Armory 1 Image
- Springfield Armory 2 Image
- Springfield Armory 3 Image
- Springfield Armory 4 Image
- Springfield Armory 5 Image
- Springfield Armory 6 Image
- Barrel Markings of the G.I. M1911 and M1911A1 Pistols
- COLT ACE, SERVICE ACE & CONVERSIONS
- Colt National Match 1911 Test Target
- Common M1911 Exterior Markings
- G.I. Surplus .45 ACP Ammunition
- History and Development of the M1911/M1911Al Pistol
- M15 General Officers Model .45 Caliber Pistol
- Norwegian M1911 Pistols, Models 1912 and 1914
- R. A, “BOB” CROWDER
- Some MEU’s still carry proven M1911 .45’s
- T. E. Lawrence (Lawrence of Arabia) and the M1911
- The “National Match” M1911 Pistols
- The Detonics Story
- The Evolution and Development of the Colt Commander
- The FBI 1911 Contract
- The Guns of Frank Hamer
- The M1911 Trials
- The Marine MEU(SOC) M1911 in Iraq
- The MKIV/Series 70 Colts
- The Randall Firearms Company History 1983-1985
- The Remington Government Model Pistols
- The Singer .45 Caliber Automatic Pistol
- The True Story of the Beretta M9 Pistol.
- Who Made It?
- World Trade Center Attack Image Gallery
- World Trade Center Crash NY 196
- WTC – Knife to a Gunfight
- WTC – Pass the Colors
- WTC – Priceless
- WTC – Unce Sam Ready
- WTC Collapse
- WTC Eagle Tear
- WTC Flag Photo
- WTC Get My Gun Cartoon
- WTC Terrorist Attacks
- WTC Uncle Sam
- WTC World Trade Impact
- WTC World Trade Plane
- Production 1911 Guns
- .Kimber Ultra Carry
- “Loaded” Springfield
- 1911A1 cut-away drawing
- Auto-Ordnance Deluxe
- Auto-Ordnance High Polish
- Auto-Ordnance Parkerized
- Auto-Ordnance Pit Bull
- Auto-Ordnance Standard
- Colt 1991A
- Colt 1991A Compact
- Colt 1991A1L1
- Colt 1991A1L2
- Colt 1991A1L3
- Colt Combat Commander
- Colt Combat Commander
- Colt Defender
- Colt Gold Cup Trophy
- Colt Government
- Colt Special Combat Government
- Comped Springfield Champion
- Cut-away 1911A1
- Delta Elite 10MM
- Enterprise 1911
- Kimber Classic
- Kimber Cocked and Locked
- Kimber Compact
- Kimber Compact
- Kimber Ultra Elite
- M1991A1
- M1991A1 Colt Compact
- Para-Ordnance P-18-9
- Para-Ordnance P10-45
- Para-Ordnance P14-45
- Safari Renegade
- Series 70 Colt Government Model
- Smith and Wesson 945
- Springfield
- Springfield 9mm
- Springfield Bureau Model
- Springfield Defender
- Springfield Factory Comp
- Springfield Mil-Spec
- Springfield Mil-Spec 1911A1
- Springfield Mil-Spec Compact
- Springfield Standard
- Springfield TRP Stainless
- Springfield V-10
- Stainless Springfield
- STI 2011
- STI Falcon .40 S&W
- Strayer-Voigt Infinity
- Wilson 1996 Super Grade
- Wilson 1996-A2
- Wilson Defensive Combat
- Wilson Sentinel
- Wilson Tactical Elite
- Production 1911 Pistol Visual Display
- Rare 1911 Pistols
- The 1911 Pistol In The Movies
- 1911 Links
- 1911 Manuals & Blueprints
- 1911 Reading Library
- 1911 Myths & Legends
- More 1911 Legends
- 2nd Lt. John J. McGinty III
- 2nd Lt. Patrick Regan
- Charles W. Davis
- Combat Experience with the .45 ACP
- Dan D. Schoonover
- Darrell Samuel Cole
- Gary I. Gordon
- Harold A. Fritz
- Harry Linn Martin
- Henry F. Warner
- If You’re Serious, Get a .45! or The Colt M1911A1 in Combat
- Jack G. Hanson
- Medal Of Honor Citation: Johnson, Dwight H.
- Randall D. Shughart
- Robert D. Maxwell
- Robert Eugene Bush
- Robert G. Cole
- So long, Smokey Joe
- Thomas A. Baker
- William B. Turner
- William J. O’Brien
- Willibald C. Bianchi
- More 1911 Legends
- Ammo Reviews
- Articles on CCW
- Concealed Carry and Terrorist Threats
- Concealed Carry In Hot Weather
- Cooper Vs. Terrorism
- Cops and Guns – A Generational Difference?
- Defensive Pistol Practice and Training Some basic understandings
- Examples Of Armed Citizens Coming To The Aid Of Officers In Peril
- Guns & Survival Goes to API
- Have Gun. Will Carry.
- Jim Higginbotham Demonstrating Lateral Movement
- On The Different Modes Of Pistol Carry
- Pistol Packin’
- Raging Against Self Defense: A Psychiatrist Examines The Anti-Gun Mentality
- Rules for a Gunfight
- Selecting a Holster for Concealed Carry
- Selecting a Pistol for Concealed Carry
- The goal of the gunman?
- The Moral Side of Lethal Force
- The psychology of self defense and the force continuum
- The Will To Win……
- Wearing My Handgun into My Doctor’s Office
- When Being a Good Guy Isn’t Enough
- Why Concealed Carry?
- Articles on Concealed Carry
- Gear Reviews
- A Better Snap Cap: A-Zoom Practice Ammo
- A Range Bag That Let Me Down
- Adidas GSG-9 Tactical Boots
- Aker Magazine and Flashlight Carrier
- Bianchi Agent Slim Speedloader Pouch
- Choosing The Right Magazine For Your Kalashnikov
- Crimson Trace Lasergrips
- Dillon Precision HP-1 Electronic Hearing Protectors
- Domke “Photog” Vest
- Equipment Review Pictures
- A-Zoom Snap Cap Photo
- AK-47 Magazine Photo
- Akers Combo Pouch
- Bianchi Agent Speedloader Pouch Photo
- Crimson Trace LG-201 Photo
- Dillon Precision HP-1 Electronic Hearing Protection Photo
- Dillon Square Deal B Photo
- Domke Photog Vest Photo
- Kentucky IDPA Photo KY2K-9
- MC 25 Mil-Comm Cleaner/Degreaser
- Mil-Comm MC25 Photo
- Safariland Comp 1 Speedloader
- Safariland Comp 1 Speedloader Photo
- Uncle Mike’s Range Bag Buckle Photo
- Uncle Mike’s Range Bag Photo
- Getting the Bad Guy Under Control with the Laser Aiming Device
- Kleen-Bore Black Magic Cold Blue
- Mil-Comm — Gun Care for the 21st Century
- Review of the Dillon Square Deal B Reloading Press
- Safariland Comp 1 Speedloader
- Shooter’s Connection Tournament Series Range Bag
- Sure-Fire Classic Series 6-volt WeaponLight, Model 610R
- Surefire M2 Centurion and the M3 Combat Light
- The Police Marksman Reviews MIL-COMM MC-25 Cleaner/Degreaser
- Weapon-Mounted Tactical Light Systems
- Wilson Combat Armor-Tuff Finish and the KelTec
- Holster Reviews
- Bianchi Askins Avenger
- Black Hills IWB Holster Model BH76
- FIST Sport holster
- Galco Classic Lite Shoulder Holster
- Galco Jackass Rig Shoulder Holster
- Hellweg K Series Holster
- High Noon Sky High Holster
- Milt Sparks VersaMax Holster
- My Two Favorite Holsters
- P220 and Large Auto Leather
- Shades of Sonny Crockett: The Galco Miami Classic Shoulder Holster
- The ClipDraw
- The DeSantis “Stinger” Pocket Holster
- The High Noon Down Under
- The High Noon Pocket Grabber
- Uncle Mike’s Sidekick Pro Dual Retention Tactical Holster
- What’s Hot: The High Noon Topless Holster
- Wilson Combat Featherweight IWB
- Wilson Covert Companion IWB Holster
- Knife Reviews
- Library Menu
- Long Gun Reviews
- M1911 Pistol Reviews
- STI Trojan
- A Review of the Colt Gunsite Pistol
- A Tale of Two Springfield’s
- Auto-Ordnance 1911PKZ
- Charles Daly M1911A1
- Chris’ Kimbers: Classic Custom, Pro Carry and Ultra Carry
- Colt Defender
- Colt Gold Cup Series 80 Mark IV
- Colt M1991A1 Commander
- Critique of New Colt M1911A1 Reproduction
- Custom Classic, Compact Custom and Stainless Gold Match
- Frustrated with the Para-Ordnance Model P14-45
- GUNSITE GSP
- Gunsite MM-1
- Happy with my Springfield Armory Compact 1911A1 . 45 ACP
- Kimber Combat Carry and Compact Custom
- Kimber Compact
- Kimber Custom Carry
- Kimber Custom II in .45 ACP
- Kimber Pro Carry II in 9mm
- Kimber Pro Carry: A Modern Classic
- Kimber Pro CDP II
- Kimber ProCarry HD II
- Kimber Stainless Compact Lightweight
- Kimber Stainless Target Custom
- Kimber Stainless Ultra Carry
- Kimber Ultra Carry
- Kimber Ultra Carry
- Kimber Ultra Carry
- Kimber Ultra Carry
- Living with the Les Baer Thunder Ranch Special
- M1911A1 Colt
- Making the Rock Island Armory .45 1911 Pistol Reliable
- My Brief Love Affair with the Kimber Gold Combat Stainless
- My New Thunder Ranch Special
- My Perfect Gun
- My Springfield Mil-Spec M1911A1
- New guns for Tacoma
- New Rollmarked Colt M1991A1 .45acp Government Model
- Not Happy With Lightweight Springfield Armory Champion
- Para-Ordnance C7.45 LDA Stainless Issue Update
- Para-Ordnance P12
- Personalizing the Colt Combat Commander
- Range Report: Custom Colt Commander .45 ACP
- Range Report: Para-Ordnance LDA 7.45
- Rock Island Armory M1911A1
- Rock Island Armory Milspec .45
- Sistema Colt by Jan Haluska
- Springfield 1911A1 Mil-Spec
- Springfield Armory Loaded Micro-Compact 1911-A1
- Springfield Armory OD Green Armory Kote™ “Loaded” 1911 Pistol
- Springfield Loaded
- Springfield Ultra Compact High-Capacity, Model PX9701l
- STI Ranger
- STI SOCOM
- The 38/45 Safestop Pistol.
- The BUL M5 Pistol
- The Colt M1991A1
- The Kimber Ultra CDP
- THE PARA-ORDNANCE P10-45
- The Randall
- The Rock Island Armory Guns
- The Springfield Armory Micro Compact
- The Wilson Combat CQB
- When Cool Gets Cooler
- Wilson CQB
- Wilson Custom Gun Test Target
- You want reviews? Here’s mine on the S-A “loaded” 1911A1.
- M1911 Technical Issues
- Inertial Discharge of the M1911 Pistol
- 1911 Reliability Secrets
- Accidental Discharge of a 1911 in a Thumb Break Holster
- Autoloader Actions
- Breaking in a 1911
- Build it Your Way
- Colt Series 80 Firing Pin Block Mechanism
- Custom M1911A1 Modifications
- Dropping the Slide on an Empty Chamber
- Firing Pin Safety and Accidental Discharge from Dropping a 1911
- FTF (Failure to Feed) & FTE (Failure to Extract) Troubleshooting Guide
- Here are some useful resources in countering the “ballistic fingerprinting” lies
- Holding the Trigger Back While Loading an M1911 Pistol
- Is “Cocked and Locked” Dangerous?
- Jeff Cooper On M1911 Springs “Taking A Set”
- Kimber Series II Firing Pin Block Safety
- Making the Rock Island Armory .45 1911 Pistol Reliable
- Malfunctions, Stoppages and Remedial Actions for the M1911-A1
- Modifying the 1911
- My Own Fluff and Buff
- Parkerization
- Recoil Spring Selection Tips (from Wilson Combat catalog)
- Recommended Modifications to the Colt .45 Auto for Self-Defense Use
- Safety Tests for the M1911/M1911A1 Pistol
- Slide Locks Back on Kimber with Ammunition Still in the Magazine
- Slide Release or Slingshot? Dropping the Slide During a Reload from Slide Lock
- The 1911 Pistol Is Its Own Toolbox!
- The Danger in Covering the Ejection Port While Racking the Slide
- The Elements of a Trigger Job on an M1911 Pistol
- THEORY OF OPERATION COLT .45 ACP GOVERNMENT MODEL PISTOL
- U.S. Army Marksmanship Training Unit Standards & Procedures – Rebuild the .45 M1911A1 Pistol to USAMTU Specifications
- Use of the .45 Auto Sear Jig
- When to Restore (and when not to)
- Odds & Ends
- Weirdness on and around April 19
- 1911 .45 ACP Production Information
- 1911 Bookstore
- 1911 Mystique
- A Soldier’s Viewpoint on Surviving Nuclear, Chemical and Biological Attacks
- Christians and Guns
- CyberCondoms
- Defensive Marksmanship
- For Law Enforcement Professionals Only: PreparationH Suppository Bullets
- Glock vs. 1911
- Handgun Power
- M1911 vs. M9
- Newsletter & Docs
- Recognizing and Avoiding Spyware
- Some military axioms that really make sense
- The Case for the .45 ACP
- The Real Meaning of Independence
- Todd Jarrett On How to Shoot a Pistol
- Two Wrongs Don’t Take My Rights
- Why The 1911?
- You Might Be a Gun Nut…
- Other Pistol Reviews
- Charter Arms Bulldog in .44 Special
- CZ 75 D PCR COMPACT
- CZ-75B
- Going Over To The Dark Side
- I Hate Glocks
- Kahr P9
- KAHR P9 Polymer Rocks!
- Kel-Tyke
- PRODUCT NOTICE: CZ 75 ST STANDARD IPSC MODEL PISTOL
- Smith & Wesson Model 637, Chief’s Special Airweight .38 Special
- Steyr M40, M357, & M9: New Super M Series Pistols
- The Beretta Vertec: A double action auto that single action fans can get their hands around.
- The Colt Mustang
- The Kahr K9 Elite 98
- The Para-Ordnance 7.45 LDA
- The Para-Ordnance LDA 7.45 Makes the trip to Novak’s
- The Ruger 22/45
- The Smith & Wesson Model 60-15 3” .357 Magnum
- The Thunder Rolls: A different kind of .45
- Up Close and Personal
- Up Close and Personal – Barrels
- Up Close and Personal – Disassembly and Mantenance
- Up Close and Personal – Final Conclusions and Recommendations
- Up Close and Personal – Frames
- Up Close and Personal – Handling and Shooting Impressions
- Up Close and Personal – Magazines
- Up Close and Personal – Recoil Springs
- Up Close and Personal – Slides and Sights
- Walther P99: The Glock Alternative
- Why Carry a Revolver?
- Pistol, Holster, Knife, Ammo, & Gear Reviews
- RKBA Articles
- Eating Away at the Fabric of Freedom
- “No King but Jesus”
- 40 Reasons For Gun Control
- Al Gore’s campaign platform on gun control
- Anti-Gunners Shamelessly Exploit September 11 Tragedies
- Banning guns: It’s a good thing
- Check Your Gun Mister
- Contemporary Thinkers Comment On “Militia”
- CREATING HYSTERIA OVER GUNS
- Favorite Quotes from Jeff Cooper
- Gun Manufacturer Fell for Smoke Screen
- Gun Violence
- John Kerry’s Votes on Guns
- My Home Defense
- Remember New Orleans by Wayne LaPierre
- Second Amendment Rights
- Survey of Police Officers in Lehigh and Northampton Counties Pennsylvania
- The Assault Weapons Ban of 1994
- The Battle of Athens, Tennessee
- The Impact of the Swiss Civilian Militia On Hitler’s War Plans
- The Nineteen Eleven Effect
- Violence Increases In Wake of British Gun Ban
- What the Founding Fathers Meant by the “Militia”
- Where Is The Militia?
- 1911 Myths & Legends
- Contact Me
- Site Map
- Basic Field Manual FM 23-35
- M1911 Manual – Page 1
- M1911 Manual – Page 10
- M1911 Manual – Page 11
- M1911 Manual – Page 12
- M1911 Manual – Page 13
- M1911 Manual – Page 14
- M1911 Manual – Page 15
- M1911 Manual – Page 16
- M1911 Manual – Page 17
- M1911 Manual – Page 18
- M1911 Manual – Page 19
- M1911 Manual – Page 2
- M1911 Manual – Page 20
- M1911 Manual – Page 21
- M1911 Manual – Page 22
- M1911 Manual – Page 23
- M1911 Manual – Page 24
- M1911 Manual – Page 25
- M1911 Manual – Page 26
- M1911 Manual – Page 27
- M1911 Manual – Page 28
- M1911 Manual – Page 29
- M1911 Manual – Page 3
- M1911 Manual – Page 30
- M1911 Manual – Page 31
- M1911 Manual – Page 32
- M1911 Manual – Page 33
- M1911 Manual – Page 34
- M1911 Manual – Page 35
- M1911 Manual – Page 36
- M1911 Manual – Page 37
- M1911 Manual – Page 38
- M1911 Manual – Page 39
- M1911 Manual – Page 4
- M1911 Manual – Page 40
- M1911 Manual – Page 41
- M1911 Manual – Page 42
- M1911 Manual – Page 43
- M1911 Manual – Page 44
- M1911 Manual – Page 45
- M1911 Manual – Page 46
- M1911 Manual – Page 47
- M1911 Manual – Page 48
- M1911 Manual – Page 49
- M1911 Manual – Page 5
- M1911 Manual – Page 50
- M1911 Manual – Page 51
- M1911 Manual – Page 52
- M1911 Manual – Page 53
- M1911 Manual – Page 54
- M1911 Manual – Page 55
- M1911 Manual – Page 56
- M1911 Manual – Page 57
- M1911 Manual – Page 58
- M1911 Manual – Page 59
- M1911 Manual – Page 6
- M1911 Manual – Page 60
- M1911 Manual – Page 61
- M1911 Manual – Page 62
- M1911 Manual – Page 63
- M1911 Manual – Page 64
- M1911 Manual – Page 7
- M1911 Manual – Page 8
- M1911 Manual – Page 9
- M1911 Manual – Page 65
- M1911 Manual – Page 66
- M1911 Manual – Page 67
- M1911 Manual – Page 68