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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Christina M. (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 Rifles section.
Allison T. (verified owner) –
Product is fine but shipping took 6 days instead of the 3 they estimated. Not a huge deal but worth mentioning.
Emily R. (verified owner) –
Can't beat this price anywhere else I looked.