Name your gun or describe the ammo. We'll compare prices across retailers.
Ask in plain English. We'll show you how we read it.
Name a spec
Brand, grain, bullet, casing, bulk and price limits are filters — we hold you to them.
Name the gun
We work out the caliber and show you what we assumed — one click undoes it.
Ammo price tracker: set your price once
Save a caliber, the price per round you'll pay, and a minimum box size. IronScout checks prices daily and emails you when a tracked retailer lists a match.
Examples
Instead of opening a tab for each store, see one product's in-stock prices at every tracked retailer, side by side.
Hornady Critical Defense 9mm Luger Ammo 115 Grain Hornady FTX Polymer Tip Box of 25
In stock at 11 tracked retailers, from $0.92 to $1.28 per round. Observed Nov 12, 2026.
| Retailer | Per round | Box price |
|---|---|---|
| Ammunition Store | $0.92 | $22.99 |
| Armored Defense LLC | $1.00 | $24.99 |
| Outdoor Limited | $1.08 | $26.99 |
| Brownells | $1.16 | $28.99 |
| Midsouth Shooters Supply | $1.16 | $28.99 |
| Open Season Defense | $1.16 | $28.99 |
Prices before shipping, from tracked retailers only. Coverage does not represent the entire market.
See every listing →Type the spec. IronScout applies caliber, brand, grain, bullet type, case material and price limits as filters. Name a gun instead and it works out the caliber and marks it as assumed. A stated use changes the order, not which results you see.
Try it in the search box above.
IronScout matches the same product across the retailers it tracks, lists their prices side by side with price per round, and keeps a price history of what was recorded and when.
Each caliber page shows its price history.
Watch one product for a price drop or a restock, or save a rule for a whole caliber. Saved-search alerts arrive by email. Product alerts can also arrive as a phone notification, if you opt in.
You set the rule. IronScout never sends a deal score.
Your Gun Locker
Add your firearms once. Switch on “Gun Locker calibers only” to limit a search to the calibers in your locker, and get price-drop and back-in-stock alerts.
IronScout does not sell ammunition, score deals, or tell you what to buy. When something is promoted or paid, it is labeled. You buy direct from the retailer.
Compare prices across retailers by caliber and category.
Every caliber page shows current price ranges, popular product lines, and price history, so you can compare today's prices with what was recorded before.
Ammunition fundamentals, caliber comparisons, and use-case context — written by shooters, backed by data.
Velocity, energy, and bullet drop for 115gr, 124gr, and 147gr loads.
BallisticsVelocity, energy, and drop tables for M193, M855, and 77gr OTM loads.
Buying GuideLive cost-per-round comparison across rimfire, handgun, and rifle calibers.
Market ReportLive look at the 2026 market — calibers tightening, calibers softening, and what prices tell us.
From a search to the retailer's checkout
Type what you need in plain English. IronScout filters to the specifics you state, and labels a product whose record lacks one instead of dropping it.
Watch a product or save a search rule. IronScout checks prices daily and emails you when your rule is met.
Click through to the retailer’s product page. IronScout never handles checkout, payment, or shipping.
Everything you need to know about searching and comparing ammo prices.
IronScout is a free ammo search engine and price tracker that compares prices across multiple online retailers. It checks prices and availability daily, and records price history and price per round for 23 calibers — from 9mm and 5.56 NATO to .308 Winchester and 12 gauge. Think of it as a flight search engine, but for ammo.
IronScout indexes product listings from tracked online ammunition retailers. IronScout checks prices, availability and product details once a day, so you can compare observed prices without visiting each store.
Yes. Searching and comparing ammo prices is free with no account required. A free account unlocks the Gun Locker and alerts. There is no paid plan.
No. IronScout is a search and comparison tool, not a retailer. When you find what you're looking for, you click through to the retailer's site to purchase directly. We never handle payment, shipping, or inventory.
IronScout reads a plain-English sentence: name your rifle or pistol and it works out the caliber, pulls brand, grain, bullet type, case material and bulk out of the same sentence and enforces those as filters, and takes a stated use — range, home defense — as a reordering rather than a filter. It then shows you exactly what it understood, marks anything it assumed rather than read, and lets you drop any assumption. Tracked price history shows how today’s price compares with what we have recorded, so you can judge it yourself.
IronScout currently tracks 23 calibers: 9mm Luger, .45 ACP, .380 ACP, .40 S&W, 10mm Auto, .357 Magnum, .38 Special, .44 Magnum, 5.56 NATO, .223 Remington, .308 Winchester, 6.5 Creedmoor, 7.62x39, .300 Blackout, .30-06 Springfield, .243 Winchester, .270 Winchester, .30-30 Winchester, .22 LR, .17 HMR, 12 Gauge, 20 Gauge, and .410 Bore. More calibers are added based on demand.
There are two kinds. For a product, choose a price-drop alert on any drop or on a minimum drop in percent, and a back-in-stock alert for a restock. For a search, save a caliber with the price per round you state and a minimum box size, and IronScout emails you when a listing meets it. Prices are checked daily. A free account is required. Alerts on a saved product can also arrive as a phone push notification if you opt in. On iPhone, add IronScout to your home screen first (iOS 16.4 or later), then allow notifications. Saved-search alerts are sent by email only.
IronScout checks prices and availability at tracked retailers once a day, in nightly batches.
Free to use, no account required to search.