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M193 Ammo Overview
The M193 cartridge was introduced by the U.S. military in 1963 as a standard 5.56x45mm round. Designed for reliable performance and effective range, it became iconic in early AR-15 and M16 rifles. Though largely replaced by newer rounds, M193 remains popular among civilian shooters for its proven ballistics and affordability.
Why M193 Ammo is a Top Choice
- Reliable 55-grain full metal jacket bullet
- Effective up to 500 meters with consistent accuracy
- Widely available and budget-friendly
- Compatible with many AR-15 style platforms
- Proven military heritage and ballistics
Key Variants
M193 55gr FMJ
Standard full metal jacket round favored for general range and training use.
M193 Brass Cased
Reloadable brass casing variant, popular among handloaders and enthusiasts.
M193 Tracer
Tracer rounds used for training and target identification during low-light operations.
Competitor Comparison Table
| Feature | M193 Ammo | M855 Ammo | SS109 Ammo |
|---|---|---|---|
| MSRP | $0.30–$0.40 per round | $0.35–$0.45 per round | $0.35–$0.50 per round |
| Bullet Weight | 55 grains | 62 grains | 62 grains |
| Velocity (fps) | 3,250 | 3,100 | 3,100 |
| Penetration | Standard FMJ, moderate | Enhanced steel core | Steel core, NATO standard |
| Use Case | Target, training | Military, duty | Military, NATO |
| Notable Pro | Affordable and reliable | Better penetration | NATO standard compliance |
Best Use Cases for M193 Ammo
- Range practice and plinking
- General target shooting
- Training with AR-15 style rifles
- Budget-friendly self-defense option (where legal)
- Collection and historical interest
Frequently Asked Questions
Can I use M193 ammo in any AR-15?
M193 ammo is safe and reliable in standard AR-15 rifles with 1:12 twist barrels but may not stabilize heavier bullets or different twist rates.
What is the difference between M193 and M855 ammo?
M193 uses a 55-grain FMJ bullet; M855 has a 62-grain penetrator tip for improved penetration and is the NATO standard round.
How does M193 perform at longer ranges?
M193 is effective up to approximately 500 meters, with good accuracy and consistent velocity for mid-range engagements.
