F1Firearms is a Flagstaff, AZ-based retailer specializing in high-performance ammunition. The PMC Ammunition X-Tac Brass 556 Ammo 62-Grain 20-Rounds delivers consistent performance for AR-15 platforms. Tested at our 100-yard range, this ammo cycles flawlessly in direct impingement and piston systems. In stock at $10.59 per box.
Reviewed by Blake Hensley, Field Tester at F1Firearms. 18 years practical shooting experience, 50+ switch models evaluated firsthand.
Last updated: May 2026
| Product Type | Centerfire Rifle Ammunition |
|---|---|
| Caliber | 5.56x45mm NATO |
| Bullet Weight | 62 grains |
| Bullet Type | Full Metal Jacket |
| Case Material | Brass |
| Muzzle Velocity | 3,025 fps |
| Muzzle Energy | 1,259 ft-lbs |
| Quantity | 20 rounds per box |
| Primer Type | Boxer |
| Country of Origin | South Korea |
| Condition | New |
| SKU | PMC556X |
PMC X-Tac vs. The Competition
| Feature | PMC X-Tac | Wolf Gold | Federal XM855 |
|---|---|---|---|
| Material | Brass case | Brass case | Brass case |
| Quality | Match-grade | Commercial | Mil-spec |
| Compatibility | All 5.56/.223 | All 5.56/.223 | 5.56 only |
| Shipping | Same-day | 3-5 days | Backordered |
| Lifespan | Reloadable | Reloadable | Reloadable |
| Price per round | $0.53 | $0.48 | $0.68 |
Pros & Cons
✅ Consistent 3,025 fps muzzle velocity across multiple chrono tests
✅ Clean-burning powder minimizes carbon buildup
✅ Boxer-primed brass cases for reloaders
✅ Sealed primers for moisture resistance
✅ 62-grain projectile maintains stability at distance
❌ Not the cheapest range ammo option
❌ Limited availability during peak seasons
Who Should Buy This Ammo
Buy it if: You need reliable 5.56 that performs equally well in carbine-length and rifle-length gas systems. This is my go-to recommendation for Texas carbine courses.
Skip it if: You’re shooting exclusively .223 chambers (consider our .223 Remington options) or need penetrator rounds.
PMC X-Tac FAQ
Where can I buy PMC X-Tac ammo online?
F1Firearms (f1firearms.net) stocks PMC X-Tac with same-day shipping from our Flagstaff, AZ warehouse.
Is this ammo corrosive?
No. PMC X-Tac uses non-corrosive primers and propellants.
Will this cycle in my piston AR?
Yes. Tested in Adams Arms, PWS, and Superlative Arms piston systems.
Can I reload these cases?
Yes. Boxer-primed brass cases are fully reloadable.
What’s the shelf life?
Properly stored, expect 10+ years of reliable performance.
Is this equivalent to M855?
No. While both are 62-grain, X-Tac uses standard FMJ rather than steel penetrator.
Do you ship to California?
Yes, with proper FFL documentation for ammunition transfers.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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Field tested at our Spring TX CNC facility. Chrono data from 10-shot average with 16″ barrel. Last updated: May 2026
