20 Gauge Ammo Prices & Cost Per Round

Real-time price tracking across 1 retailer. Updated every 2 hours.

2
Products Tracked
$1.94/rd
Best CPR →
$9.69
Cheapest Box →
2
In Stock
2026-09-24
Last Updated
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Filter by grain weight: All 22gr 150gr 250gr 260gr 275gr 308gr Showing 2 308gr products

Track 20 Gauge ammo cost per round in real time across 1 retailer. We're monitoring 2 20 Gauge products (2 priced offers with CPR data) with box prices starting at $9.69. Prices are updated every 2 hours. Click any product to see its full price history and set a price drop alert.

20 Gauge Cost Per Round History

20 Gauge Price by Month

Month Median CPR Lowest CPR Change
September 2026 82.8¢/rd 32.0¢/rd +3.5%
August 2026 80.0¢/rd 32.0¢/rd
July 2026 80.0¢/rd 32.0¢/rd +3.7%
June 2026 77.1¢/rd 32.0¢/rd +1.0%
May 2026 76.4¢/rd 28.0¢/rd -0.3%
April 2026 76.6¢/rd 36.0¢/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

Where can I find the cheapest 20 Gauge ammo?

Based on our real-time tracking across 1 retailer, the cheapest 20 Gauge ammo starting at $9.69/box. We compare prices from GrabAGun and more.