.40 S&W Ammo Prices & Cost Per Round

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

Real-time price tracking across 4 retailers. Updated every 2 hours.

Products Tracked

$0.66/rd

Best CPR →

$0.85/rd

Median CPR

$13.99

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 4 retailers. We're monitoring 17 .40 S&W products (6 priced offers with CPR data) with box prices starting at $13.99. The typical cost per round is $0.85, with the best deal at $0.66/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: $0.85 across 6 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 $0.66/round. A typical CPR across 6 tracked offers is $0.85/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 $0.85. 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 4 retailers, the cheapest .40 S&W ammo starting at $13.99/box. We compare prices from Bereli, 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

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