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
Browse more: Ammunition | Full Shop
Field tested at our Spring TX CNC facility. Chrono data from 10-shot average with 16″ barrel. Last updated: May 2026
Andrew P. (verified owner) –
Shipped fast, exactly as described.
Brittany S. (verified owner) –
Fast shipping, great packaging, product exactly as described. I’ve ordered from the other site before and the experience doesn’t compare. This store delivers.
Erica B. (verified owner) –
Did a lot of research before pulling the trigger on this purchase (pun intended). Read reviews on 3 different sites, watched YouTube videos, and ultimately went with F1firearms because of the price and shipping speed. Not disappointed. Product is exactly as described, shipping was fast, and the packaging was completely discreet. Already eyeing a few more items in their Ammunition section.
Jason K. (verified owner) –
Works as advertised. Satisfied customer here.
Chelsea G. (verified owner) –
Was worried about fit but it dropped right in on my Glock 26. Works perfectly after a few hundred rounds. Very pleased.
Shannon B. (verified owner) –
I was skeptical about ordering online but this is legit. Good product, fast shipping, discreet packaging. Will order again.