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J&M Spec. Inert Cartridges

Where you get absolutely no “bang” for your buck!

Makers of the finest, most realistic dummy cartridges available.

Over 200,000 dummy rounds sold!

All of our nearly 250 calibers and gauges of dummy rounds / snap caps are completely INERT and are safe for function checking, dry-fire training, reenacting, film props, or display.

J&M Spec. is a group of veterans, reenactors, and competitive marksmen dedicated to making the finest, most realistic INERT display or “dummy” ammunition available. Also known as snap caps or fake ammo, our products are prefect for safely function checking a firearm, for film props, reenactors, or displays. We specialize in military cartridges of the 20th century and Western / Cowboy calibers as well. All of our dummy ammo is made using REAL cartridge cases and REAL bullets, giving them the most realistic weight and feel, but NO powder or live primers.


Order more, SAVE More!

Order 2 sets – Save 5%
3 sets – Save 7%
4 or more – Save 10%


Our Products

We offer dummy ammo for nearly 250 different calibers and gauges. Our “snap caps” are used for a wide variety of purposes including reenacting, museum quality displays, gunsmithing, and even props in the film industry. Don’t risk the safety of your display, use our realistic “fake bullets” for all your firearms displays or training.

We have categorized our snap caps / dummy cartridges in multiple ways to assist you in finding what you are looking for. Most calibers are listed in more than one category. Don’t hesitate to use the search function either!

  • Calibers by Country – look for the cartridges you want by the nation that made and/or used them.
  • Rifle Calibers & Pistol Calibers – subdivided if there are multiple options for a specific caliber.
  • Commercial calibers – those designed for and used in modern, commercially available firearms, and not used by any nation’s military.
  • Western Cartridges – For all the Cowboys out there. The perfect addition to your “Wild West” collection.

WWI Complete Cartridge Collection Dummy Fake Bullets
World War One Complete Collection

Now offering “Cartridge Collections” from WWI, WWII, the Korean War, the Vietnam War Desert Storm, and many others. As well as, collections by country. The set pictured is our World War One Complete Collection. It consists of every standard rifle and pistol caliber from all major combatant nations of the “War to End All Wars”. Three-three calibers in all!


“CUPRO-NICKEL” Bullets

30-40 Krag M1898 Cupronickel

We now offer many of our snap caps with simulated “cupronickel” (copper nickel) bullets to replicate what was used by many nations from the beginning of jacketed bullets through WWII. These “fake bullets” are slightly lighter than the originals and also make identifying them as dummy rounds easier and faster.


Please contact us!

If you don’t see the caliber you are looking for on our website, please let us know. We are constantly expanding our inventory and are always open to new ideas.


Thank you for visiting!

To reiterate, all of our products are inert, and known by many names such as snap caps, fake ammo, fake ammunition, fake bullets, dummy rounds, dummy cartridges, inert ammo, etc. Please note that as our slogan states, you get “absolutely no “bang” for your buck”. Our snap caps are the perfect solution for your gunsmith function checking, reenacting, film making, or display needs!

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