.357 Magnum Ammo Price Tracker

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

160

Products Tracked

$0.44/rd

Best CPR →

$0.71/rd

Range CPR

$11.99

Cheapest Box →

150

In Stock

2026-05-16

Last Updated

Filter by grain weight: All 50gr 80gr 100gr 105gr 110gr 120gr 125gr 130gr 135gr 140gr 142gr 145gr 148gr 150gr 154gr 158gr 165gr 170gr 180gr 200gr

.357 Magnum by Use Case

Self-Defense

105¢/rd

best: 59¢/rd
43 in-stock products

Range / FMJ

71¢/rd

best: 57¢/rd
20 in-stock products

Hunting

145¢/rd

best: 61¢/rd
17 in-stock products

Track .357 Magnum ammo cost per round in real time across 4 retailers. We're monitoring 160 .357 Magnum products (97 priced offers with CPR data) with box prices starting at $11.99. The typical cost per round is $0.71, with the best deal at $0.44/round. Broken down by use case: Self-Defense averages 105¢/rd, Range / FMJ averages 71¢/rd, and Hunting averages 145¢/rd. Prices are updated every 2 hours. Click any product to see its full price history and set a price drop alert.

.357 Magnum Ammo Buying Context

.357 Magnum ammo searches usually compare magnum revolver loads, defensive ammunition, and range-friendly options. This tracker keeps live .357 Magnum prices, cost per round, and in-stock status together so shoppers can judge value without mixing it up with .38 Special.

Use this page to compare .357 Magnum ammunition across retailers, then follow related handgun and revolver hubs when benchmarking magnum ammo against .38 Special, 10mm, or .44 Magnum.

.357 Magnum Median Cost Per Round

Frequently Asked Questions

What is a good cost per round for .357 Magnum?

The best cost per round we're currently tracking for .357 Magnum is $0.44/round. A typical CPR across 97 tracked offers is $0.71/round. Prices vary by brand, grain weight, and retailer.

Is .357 Magnum ammo cheap right now?

The typical cost per round for .357 Magnum is $0.71. 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.

How do .357 Magnum prices vary by use case?

.357 Magnum ammo falls into different price tiers depending on intended use. Self-Defense averages 105¢/rd (best deal 59¢/rd across 43 products). Range / FMJ averages 71¢/rd (best deal 57¢/rd across 20 products). Hunting averages 145¢/rd (best deal 61¢/rd across 17 products).

Where can I find the cheapest .357 Magnum ammo?

Based on our real-time tracking across 4 retailers, the cheapest .357 Magnum ammo starting at $11.99/box. We compare prices from Bereli, Brownells, GrabAGun, Palmetto State Armory and more.

What should I compare when shopping for .357 Magnum ammo?

Compare .357 Magnum ammo by cost per round, bullet type, intended use, and stock status. Magnum defensive or hunting loads often price higher than basic range ammunition.

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 ACP 10mm 12 Gauge 20 Gauge 28 Gauge 30-06 300 Blackout 5.56 / .223 5.7x28mm 6.5 Creedmoor 6.5 Grendel 7.62x39 7.62x51 NATO 7mm Rem Mag 9mm