The Kalashnikov assault rifle is a legendary weapon, known throughout the world for its reliability and simplicity. However, even experienced owners sometimes have questions about the compatibility of cartridges with different modifications of AKs. 7.62×39 or 5.45×39? Can an AK-74 be fired with AK-47 cartridges? Why do civilian Saiga and Vepr carbines require a special approach to the selection of ammunition? In this article we will look at all the nuances - from historical calibers to modern standards, and also focus on legal aspects cartridge ownership in Russia in 2026.

Many people mistakenly believe that all Kalashnikovs fire the same cartridges. In fact, over the 75 years of the platform’s existence, more than a dozen modifications for different ammunition have appeared - from the classic 7.62×39 mm up to experimental calibers like 5.45×39 mm or even 5.56x45mm NATO. In this case, an error in choosing a cartridge can lead not only to weapon failure, but also to serious damage or injuries. Next is a detailed analysis of each caliber, their features and rules of use.

In order not to get confused in modifications, remember a simple rule: The caliber of the cartridge is always indicated on the barrel of the weapon (for example, "7.62" or "5.45"). If there are no markings, this is a reason to be wary and check the model with the seller or in the documentation. It is also important to consider that civilian semi-automatic carbines (e.g. Saiga-3 or Vepr-Hunter) may have restrictions on the type of cartridges due to design features or legal regulations.

1. Classic caliber 7.62×39 mm: cartridges for AK-47 and its modifications

Cartridge 7.62×39 mm (designation GRAU - 57-N-231) became a symbol of the Kalashnikov assault rifle. Developed in 1943, it remains one of the most common in the world. It was for this caliber that the first production AK-47s were created, and later - AKM, AKMS, RPK and many other models.

Modern cartridges 7.62×39 mm are available in several versions:

  • 🔹 Ordinary (with steel core, designation 57-N-231) is a standard ammunition for military use.
  • 🔹 Tracers (57-T-231) - leave a luminous trail when flying, used to adjust fire.
  • 🔹 Armor-piercing incendiary (57-BZ-231) - penetrate light armor and set fire to flammable materials.
  • 🔹 Reduced velocity projectile (57-N-231U) - for silent shooting (used with PBS).

Important: cartridges 7.62×39 mm Soviet and Russian production may differ in powder gas pressure. For example, AK-47 ammunition has a higher pressure than AKM ammunition. Firing AK-47 ammunition from an AKM can accelerate wear on the weapon and, in some cases, cause the shell to rupture.

⚠️ Attention: Ammo 7.62×39 mm not compatible with weapons of caliber 7.62x51mm NATO (for example, with M14 or FN FAL rifles). Trying to use them may cause the bolt to jam or the barrel to burst!

For civilian carbines (for example, Saiga or Boar) cartridges with soft core (for example, hunting Bi-M or Extra), since they wear out the barrel less when shooting at targets. However, for self-defense or hunting large game, it is better to choose ammunition with an armor-piercing or semi-shell core.

📊 Which Kalashnikov caliber are you most interested in?
7.62×39 mm (AK-47/AKM)
5.45×39 mm (AK-74)
5.56×45 mm (AK-101/102)
Other caliber

2. Caliber 5.45×39 mm: cartridges for AK-74 and modern modifications

Cartridge 5.45×39 mm (7N6) was developed in the 1970s as a response to NATO's move to small caliber ammunition (5.56×45 mm). Its key advantages:

  • 🎯 Flatter bullet flight trajectory (better accuracy at long distances).
  • 💥 Less return compared to 7.62×39 mm, which simplifies automatic fire.
  • 🛡️ High penetration ability due to a long and narrow bullet.

Standard cartridge 7N6 has a steel core and a lead jacket. However, modernized versions appeared in the 1990s:

  • 🔥 7N10 - with enhanced armor-piercing effect (pierces class 3 body armor).
  • 💀 7N22 - “reinforced” version with improved accuracy and residual energy.
  • 🌑 7N24 — a cartridge with a tracer composition for night shooting.

Important nuance: cartridges 5.45×39 mm not compatible with weapons under 7.62×39 mm and vice versa! Trying to load an AK-74 with an AK-47 cartridge will result in the bolt jamming and, in the worst case, the barrel breaking.

⚠️ Attention: Ammo 7N6 and 7N10 have different ballistics. Shooting 7N10 from a barrel designed for 7N6, can reduce weapon life by 20–30% due to increased pressure.

For civilian carbines (for example, Saiga-5.45) often use "soft" lead core cartridges (e.g. Bi-5.45), since they wear out the barrel bore less. However, for hunting medium-sized animals (boar, elk), it is better to choose ammunition with a semi-jacketed bullet (Extra or SP-5).

Chuck type Designation Purpose Pressure, MPa
Ordinary (7N6) 57-N-231P Standard ammunition for AK-74 290–310
Reinforced (7N10) 7N10 Increased armor-piercing effect 320–340
Tracer 7T3 Fire adjustment at distances up to 800 m 300–320
Okhotnichiy (Bi-5.45) Bi-5.45 Lead core, for civilian weapons 270–290

3. Caliber 5.56×45 mm NATO: AK-101, AK-102 and export modifications

In the 1990s, modifications chambered for the AK-74 were created. 5.56x45mm NATO — AK-101 (with a bayonet) and AK-102 (shortened version). These assault rifles are intended for export to countries where NATO ammunition is standard.

Features of the cartridge 5.56×45 mm:

  • 🌍 Compatible with NATO weapons (M16, AR-15, G36, etc.).
  • 📉 Less return compared to 7.62×39 mm, but a higher muzzle velocity.
  • 🔄 There are two main types: SS109 (with steel core) and M193 (with lead).

Important: AK-101/102 are not compatible with 5.45x39 mm cartridges! Despite the external similarity, the difference in the diameter of the cartridge case and the pressure of the powder gases makes their interchangeability impossible.

⚠️ Attention: Ammo SS109 (NATO) have higher pressure than M193. Shooting SS109 from a barrel designed for M193, may cause accelerated wear or breakage of the valve.

In Russia, civilian carbines are under 5.56×45 mm are rare due to legal restrictions. However, some models (for example, Saiga MK-5.56) are legally sold with a weapons permit. For these, soft core cartridges are recommended (for example, Bi-5.56), since they wear out the barrel less.

💡

When purchasing ammo 5.56×45 mm pay attention to the markings: SS109 (green tip) and M193 (without painting) have different ballistics. Better suited for AK-101 SS109, as it complies with NATO standards.

4. Other Kalashnikov calibers: 7.62×54 mm R, 9×39 mm and experimental options

In addition to the main calibers, the Kalashnikov platform was adapted for other ammunition:

  • 🔫 7.62×54 mm R - used in RMB (Kalashnikov machine gun) and sniper rifles SVD. Not compatible with AK!
  • 🕵️ 9×39 mm - silent cartridge for AS "Val" and VSS "Vintorez" (used with integral muffler).
  • 🔬 6.5×39 mm - experimental caliber for AK-12 and AK-15 (did not go into series).
  • 💥 12.7×55 mm - for large-caliber AK-308 (analogue .338 Lapua).

Civil modifications for these calibers are extremely rare. For example, carabiners 9×39 mm (for example, Vepr-9) require special permission, as they relate to weapons of limited destruction (LDW) or service weapons.

Interesting fact: in the 2010s, a cartridge was developed 6.5×39 mm for a promising machine AK-12, but it is not widely used due to the high cost and complexity of production.

What is the danger of shooting with non-standard cartridges?

Using cartridges not intended for a specific Kalashnikov model may result in:

1. Bursting of the cartridge case and jamming of the bolt (for example, when firing 7.62×51 NATO from an AK-47).

2. Accelerated barrel wear (for example, 7N10 cartridges in a barrel designed for 7N6).

3. Loss of accuracy and accuracy due to the discrepancy between the rifling of the barrel and the diameter of the bullet.

4. Explosion of the barrel when the permissible pressure is exceeded (for example, when using “hot” loads in old AKMs).

5. Compatibility of cartridges with civilian carbines (Saiga, Vepr, Tiger)

Civilian semi-automatic carbines based on Kalashnikov (Saiga, Boar, Tiger) have a number of limitations:

  • 📜 Requires permission to store and carry (in Russia - a license for smooth-bore or rifled weapons).
  • 🔧 Often modified for “soft” cartridges (for example, with a lead core).
  • 🚫 Conversion for automatic fire is prohibited (criminal liability under Article 222 of the Criminal Code of the Russian Federation).

Recommendations for choosing cartridges for civilian carbines:

  • 🎯 For Saiga-3 (7.62×39 mm) - hunting cartridges Bi-M or Extra.
  • 🦌 For Vepr-Hunter (5.45×39 mm) — SP-5 or Bi-5.45.
  • 🛡️ For self-defense - cartridges with a semi-sheathed bullet (PSO or LPS).
⚠️ Attention: Use of live ammunition (e.g. 7N6 or 57-N-231) in civilian weapons can be regarded as a violation of the law “On Weapons” (Article 20.8 of the Code of Administrative Offenses of the Russian Federation). Always check the markings of the cartridges and their compliance with the permit!

When purchasing ammunition for a civilian carbine, pay attention to:

  • 📄 Availability of a certificate of conformity (patron.ru or Rostest website).
  • 🔍 Marking on the cartridge case (must match the caliber of the weapon).
  • 📅 Production date (cartridges older than 10 years may lose ballistic properties).

Check the caliber of the cartridge with the markings on the barrel of the weapon

Check the integrity of the sleeve (for cracks or corrosion)

Make sure that the cartridge is not “overgrade” (for example, 7.62×51 instead of 7.62×39)

Look at the release date (optimally - no older than 5 years)

-->

6. How to determine the appropriate cartridge for your Kalashnikov?

To avoid making a mistake when choosing cartridges, follow this algorithm:

  1. 🔍 Look at the markings on the barrel of the weapon (for example, “7.62” or “5.45”).
  2. 📖 Check the weapon passport - the recommended type of ammunition is indicated there.
  3. 🛒 When purchasing cartridges, check the designation on the package with the compatibility table (see below).
  4. 🎯 If in doubt, buy 1-2 cartridges and check whether they fit freely into the chamber.

Compatibility table for Kalashnikov cartridges and models:

Weapon model Caliber Recommended Ammo Prohibited cartridges
AK-47, AKM, AKMS 7.62×39 mm 57-N-231, Bi-M, Extra 7.62×51 NATO, 5.45×39 mm
AK-74, AK-74M 5.45×39 mm 7N6, 7N10, Bi-5.45 5.56×45 mm, 7.62×39 mm
AK-101, AK-102 5.56×45 mm SS109, M193 7.62×39 mm, 5.45×39 mm
Saiga-3 (civilian) 7.62×39 mm Bi-M, SP-3 57-BZ-231 (armor-piercing)

If you purchased a weapon secondhand or inherited it, necessarily Check cartridge compatibility at a gunsmith shop. For example, some early models Saiga have barrels that are not designed for the high pressure of modern live ammunition.

💡

Never use cartridges marked "US" (reduced velocity) in a standard weapon - they are intended only for silent shooting with the PBS and can jam the bolt.

In Russia, the circulation of ammunition is strictly regulated by the Law “On Weapons” (FZ-150) and government regulations. key rules:

  • 📋 Ammo can only be purchased if available weapons permits (licenses).
  • 🔫 The number of cartridges that can be stored at home is limited (usually up to 1000 pieces per weapon).
  • 🚫 It is prohibited to store live ammunition without weapons (Article 20.8 of the Code of Administrative Offenses of the Russian Federation - fine up to 50,000 ₽).
  • 📅 The shelf life of cartridges is up to 10 years (after expiration they must be disposed of).

To purchase cartridges you need:

  1. Show your passport and weapons license at the store.
  2. Fill in account card (form 002-O/u).
  3. Receive a receipt indicating the series and license number.
⚠️ Attention: Storing cartridges without a weapon or exceeding the limit is considered an administrative offense (fine up to RUB 5,000). If cartridges are found during a search without documents, this can be classified as illegal storage of ammunition (Article 222 of the Criminal Code of the Russian Federation, up to 2 years in prison).

Since 2023, new rules for recording cartridges have been in force in Russia:

  • 📊 Gun owners are required to cartridge log book (when purchasing and spending).
  • 🔄 When selling a weapon, the cartridges must be transferred to the new owner or handed over to the police.
  • 🗑️ Ammo can only be disposed of through licensed organizations (for example, Rosatom or Rostec).

8. Common mistakes when choosing cartridges and how to avoid them

Even experienced shooters sometimes make mistakes. Let's look at the most common ones:

Error 1: Confused 7.62×39 mm and 7.62x51mm NATO.

  • 🔹 7.62×39 mm - short cartridge case, used in AK-47.
  • 🔹 7.62×51 mm - long sleeve, used in M14, FN FAL.

Consequences: jamming of the bolt or rupture of the barrel.

Error 2: Use expired cartridges.

  • 🔹 Cartridges older than 10 years can lose up to 30% of the initial bullet speed.
  • 🔹 Risk of misfire or rupture of the sleeve.

Error 3: They shoot “hot” cartridges (for example, 7N10) from a barrel designed for 7N6.

  • 🔹 Increased pressure accelerates weapon wear.
  • 🔹 Damage to the shutter or trigger mechanism is possible.

Error 4: Store cartridges in a damp place.

  • 🔹 Humidity leads to corrosion of cartridges and capsules.
  • 🔹 Risk of massive misfires when shooting.
💡

To check the cartridge for suitability, inspect the cartridge case for a green coating (corrosion) and tap the primer on a hard surface - if you hear a dull sound, the powder is damp.

FAQ: Answers to frequently asked questions about Kalashnikov cartridges

❓ Is it possible to shoot 7.62×39 mm cartridges from an AK-74?

No, this is physically impossible. The AK-74 chamber is designed for 5.45×39 mm, and the sleeve 7.62×39 mm wider and longer. An attempt to load such a cartridge will result in the bolt jamming.

❓ What is the difference between 7N6 and 7N10 cartridges?

Cartridge 7N6 - standard ammunition for AK-74 with a steel core. 7N10 — a modernized version with enhanced armor-piercing effect (pierces class 3 body armor). However 7N10 has a higher pressure, so is not recommended for shooting from older AK-74s.

❓ Which cartridges are best for Saiga hunting?

For hunting medium-sized animals (boar, elk), cartridges with a semi-jacketed bullet are suitable:

  • 🔹 For Saiga-3 (7.62×39 mm) — SP-3 or Extra.
  • 🔹 For Saiga-5.45 — SP-5 or Bi-5.45.

Avoid live ammo with a steel core - they have poorer stopping power.

❓ How many cartridges can you legally store at home?

According to Decree of the Government of the Russian Federation No. 963, the owner of a weapon is allowed to store up to 1000 rounds for each copy. Exceeding the limit is considered an administrative offense (fine up to RUB 5,000).

❓ Is it possible to transport cartridges in a car?

Yes, but subject to the rules:

  • 🔹 Ammo must be packed in factory packaging or a special case.
  • 🔹 Transportation is permitted only if you have a weapons license.
  • 🔹 It is prohibited to store cartridges in the glove compartment or interior - only in the trunk.

Violation of transportation rules entails a fine under Art. 20.8 Code of Administrative Offenses of the Russian Federation (up to 2,000 ₽).