.357 Magnum Ammo Prices & Cost Per Round
Real-time price tracking across 5 retailers. Updated every 2 hours.
.357 Magnum by Use Case
Track .357 Magnum ammo cost per round in real time across 5 retailers. We're monitoring 311 .357 Magnum products (103 priced offers with CPR data) with box prices starting at $8.99. The typical cost per round is $0.69, with the best deal at $0.18/round. Broken down by use case: Self-Defense averages 111¢/rd, Range / FMJ averages 69¢/rd, and Hunting averages 119¢/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.
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 $0.18/round. A typical CPR across 103 tracked offers is $0.69/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 $0.69. 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 111¢/rd (best deal 61¢/rd across 48 products). Range / FMJ averages 69¢/rd (best deal 18¢/rd across 22 products). Hunting averages 119¢/rd (best deal 58¢/rd across 20 products).
Where can I find the cheapest .357 Magnum ammo?
Based on our real-time tracking across 5 retailers, the cheapest .357 Magnum ammo starting at $8.99/box. We compare prices from Bereli, Brownells, E-Commerce Arms, GrabAGun 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
All .357 Magnum Ammo — Lowest CPR First
Showing the top 100 of 311 tracked offers. Use grain and use-case filters to narrow the list while we keep this page fast.