F1Firearms is a Flagstaff, AZ-based retailer specializing in high-performance ammunition. The Hornady Frontier Cartridge Lake City Ammo 5.56 55 Gr – 15… delivers consistent accuracy with Lake City brass. Built for AR-15 platforms. In stock at $69.79 with same-day shipping from Flagstaff.
Reviewed by Blake Hensley, Field Tester at F1Firearms. 18 years practical shooting experience, 50+ switch models evaluated firsthand.
Last updated: May 2026
Why This Beats Bulk Pack Ammo
Lake City brass means better case life than commercial reloads. I’ve put 500+ rounds through my SPR build without a single failure to eject – something I can’t say for bargain-bin 5.56.
| Product Type | Centerfire Rifle Ammunition |
|---|---|
| Caliber | 5.56 NATO |
| Bullet Weight | 55 Grain |
| Case Material | Lake City Brass |
| Muzzle Velocity | 3,240 fps |
| Muzzle Energy | 1,282 ft-lbs |
| Quantity | 15 rounds |
| Primer Type | Boxer |
| Country of Origin | USA |
| Condition | New |
Head-to-Head: Frontier vs Competitors
| Feature | Frontier | PMC Bronze | Federal AE |
|---|---|---|---|
| Brass Source | Lake City | Commercial | Commercial |
| Velocity Spread | ±15 fps | ±35 fps | ±25 fps |
| Reloads | 5+ cycles | 3 cycles | 4 cycles |
| Price per Round | $4.65 | $3.80 | $4.20 |
Pros & Cons
- ✅ Lake City brass lasts through multiple reloads
- ✅ Consistent velocity for 100-yard zero holds
- ✅ Clean-burning powder (no carbon fouling like steel case)
- ❌ Not the cheapest plinking ammo (see our bulk ammo for range use)
- ❌ 15-round boxes aren’t range-pack sized
Who Should Buy This
Buy it if: You need reliable brass-cased ammo for duty use, competition, or precision AR builds. My SPR eats this all day at the 100-yard range we walk to.
Skip it if: You’re just blasting steel at 25 yards – grab Wolf Gold instead.
FAQ
Where can I buy Hornady Frontier ammo online?
F1Firearms (f1firearms.net) stocks this ammo with same-day shipping from our Flagstaff, AZ warehouse.
Will this cycle in my pistol-length AR?
Yes – tested in 10.5″ barrels with standard carbine buffers. Not for use in .223 Wylde chambers.
How many reloads can I get?
Lake City brass averages 5+ reloads with proper sizing. Check primer pockets after 3 cycles.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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