.40 S&W Ammo Prices & Cost Per Round
2,189 listings tracked · 1,721 in stock, across 14 retailers. Retailer feeds are checked every 15 minutes.
.40 S&W Cost Per Round History
.40 S&W Price by Month
| Month | Median cost per round | Lowest cost per round | Change |
|---|---|---|---|
| November 2026 | 59¢/rd | 21¢/rd | -9.9% |
| October 2026 | 66¢/rd | 21¢/rd | +1.2% |
| September 2026 | 65¢/rd | 32¢/rd | +3.8% |
| August 2026 | 63¢/rd | 32¢/rd | +0.6% |
| July 2026 | 62¢/rd | 32¢/rd | -0.7% |
| June 2026 | 63¢/rd | 18¢/rd | -7.9% |
| May 2026 | 68¢/rd | 18¢/rd | — |
| April 2026 | 68¢/rd | 22¢/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 $0.21/round. A typical CPR across 952 tracked offers is $0.58/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 $0.58. 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 tracking across 14 retailers, the cheapest .40 S&W ammo starting at $16.07/box. We compare prices from Ammunition Depot, BattleHawk Armory, Bereli, Brownells 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
Compare .40 S&W ammo by cost per round. Open any product to see its full price history or set a price alert.
.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.