.40 S&W Ammo Prices & Cost Per Round

Name: .40 S&W ammunition price history
Creator: Firearm Data Lab

Real-time price tracking across 3 retailers. Updated every 2 hours.

Products Tracked

$0.99/rd

Best CPR →

$1.11/rd

Median CPR

$19.79

Cheapest Box →

In Stock

2026-09-24

Last Updated

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Track .40 S&W ammo cost per round in real time across 3 retailers. We're monitoring 13 .40 S&W products (5 priced offers with CPR data) with box prices starting at $19.79. The typical cost per round is $1.11, with the best deal at $0.99/round. Prices are updated every 2 hours. Click any product to see its full price history and set a price drop alert.

Median .40 S&W cost per round on September 24, 2026: $1.11 across 5 in-stock listings tracked by Firearm Data Lab.

.40 S&W Ammo Buying Context

.40 S&W ammo searches often mix range FMJ, law-enforcement style defensive loads, and bulk handgun-ammo offers. This tracker focuses on live .40 S&W prices, cost per round, and stock status so shoppers can separate a real deal from a high-priced specialty load.

Use this page to compare .40 caliber ammo prices across retailers, then move through the related handgun hubs to benchmark .40 S&W against 9mm, .45, and 10mm.

.40 S&W Search Questions We Track

.40 S&W Ammo Prices

Compare current .40 S&W ammo listings by cost per round, stock status, and box size. This helps separate range FMJ pricing from defensive ammunition.

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.40 ammo prices
40 caliber ammunition

.40 S&W Cost Per Round History

.40 S&W Price by Month

Month	Median CPR	Lowest CPR	Change
September 2026	70.0¢/rd	18.4¢/rd	—
August 2026	70.0¢/rd	18.4¢/rd	—
July 2026	70.0¢/rd	18.4¢/rd	-4.1%
June 2026	73.0¢/rd	18.0¢/rd	+4.3%
May 2026	70.0¢/rd	18.0¢/rd	+1.5%
April 2026	69.0¢/rd	36.5¢/rd	—

Median and lowest observed cost per round per calendar month, from in-stock listings tracked across supported retailers.

Want the whole market instead of one caliber? The Ammo Price Index chains these monthly medians across a fixed 12-caliber basket into a single month-over-month benchmark.

Frequently Asked Questions

What is a good cost per round for .40 S&W?

The best cost per round we're currently tracking for .40 S&W is $0.99/round. A typical CPR across 5 tracked offers is $1.11/round. Prices vary by brand, grain weight, and retailer.

Is .40 S&W ammo cheap right now?

The typical cost per round for .40 S&W is $1.11. Check our CPR trend chart above to see if current prices are above or below the 30-day average. Set a price alert to get notified when prices drop.

Where can I find the cheapest .40 S&W ammo?

Based on our real-time tracking across 3 retailers, the cheapest .40 S&W ammo starting at $19.79/box. We compare prices from E-Commerce Arms, GrabAGun, Palmetto State Armory and more.

What makes .40 S&W ammo a good deal?

A good .40 S&W ammo deal depends on CPR, round count, bullet type, and stock status. Range ammunition and defensive hollow points should not be judged by box price alone.

Other Calibers

.17 HMR .22 LR .22 WMR .243 Win .270 Win .300 Win Mag .308 Winchester .338 Lapua .350 Legend .357 Magnum .38 Special .380 ACP .40 S&W .410 Bore .44 Magnum .45 10mm 12 Gauge 20 Gauge 28 Gauge 30-06 300 Blackout 5.56 / .223 5.7x28mm 6.5 Grendel 6.5mm Creedmoor (6.5x48mm) 7.62x39 7.62x51 NATO 7mm Rem Mag 9mm