Cheapest .40 S&W Ammo - From $0.26/rd

Last updated May 13, 2026

Lowest

$0.26/rd

Median

$1.15/rd

Good Deal

$0.58/rd

25th percentile

Highest

$7.80/rd

158 products tracked·4 retailers·31-day coverage
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IronScout provides observed price and availability data for .40 S&W ammo prices ammunition across tracked online retailers. Data reflects historical price observations and does not include purchase recommendations.

Observed 30-Day Price Range (Per Round): median: 1.150, lowest: 0.263, highest: 7.800, sample size: 3787.

Lowest observed price in the trailing 7-day window: 0.329.

Prices last updated May 13, 2026 · 158 listings tracked across 4 retailers · 31 days with data in the 30-day window

How we calculate this

SQL PERCENTILE_CONT over daily-best per-product-per-day observed in-stock prices

  • Daily-best is MIN(price_per_round) per (caliber, product, UTC day).
  • Only in-stock observations included.
  • Coverage varies by retailer and source.

How This Page Works

IronScout monitors .40 S&W prices across 4 online retailersand updates this page daily. Prices shown are observed in-stock prices — not cached or stale data. The “lowest” price reflects the best per-round price observed in the trailing 30-day window.

This page shows aggregate pricing data. To search specific products, use the .40 S&W search in the app.

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