.357 Mag Ammo Price History & Average Cost
How much does .357 Mag ammo cost? This page tracks the average, median, lowest and highest price per round for .357 Mag ammunition over time — aggregated every day by AmmoBin from in-stock listings across trusted online retailers with reasonable shipping. Use it to see whether .357 Mag prices are trending up or down before you buy.
- Current average
- $1.06 /rd
- Current median
- $0.93 /rd
- Cheapest now
- $0.43 /rd
- 2025–2026 low
- $0.14 /rd
.357 Mag price history
avg price per round · last 120 days
What does .357 Mag ammo cost in 2026?
As of the latest data, .357 Mag ammo averages $1.06 per round (median $0.93), with the cheapest in-stock listings around $0.43 per round when buying in bulk. Across the period from June 2025 to June 2026, the price ranged from a low of $0.14 to a high of $3.29 per round, averaging $0.85 over that span.
How .357 Mag ammo prices are tracked
Every day, AmmoBin scans new and in-stock .357 Mag listings from dozens of online retailers, normalizes each one to a true cost per round (including the round count in the box or case), and records the day's average, median, minimum, maximum and key percentiles. Plotting those points over time reveals the real .357 Mag price trend — not a single retailer's sticker price. You can break the chart down by grain weight or bullet type to compare, for example, cheap .357 Mag range ammo against premium self-defense loads.
How to get the best price on .357 Mag ammo
- Buy in bulk. Cases almost always beat single boxes on cost per round and amortize shipping.
- Compare total cost, not sticker price. Ammo is heavy; factor shipping into the per-round math — which AmmoBin does for you.
- Watch the trend. When the current price sits near the 2025–2026 low, it's usually a good time to stock up.
- Be flexible on brand and bullet type. FMJ range ammo is typically the cheapest .357 Mag option for practice.
Frequently asked questions about .357 Mag ammo prices
How much does .357 Mag ammo cost?
As of the latest update, .357 Mag ammo averages $1.06 per round, with a median price of $0.93 per round. The cheapest in-stock listings start around $0.43 per round when buying in bulk.
What is the cheapest .357 Mag ammo right now?
The lowest in-stock .357 Mag price AmmoBin is currently tracking is about $0.43 per round. Prices change daily — check the live listings for today's cheapest .357 Mag ammo with reasonable shipping.
Has .357 Mag ammo gotten cheaper or more expensive?
Over the period from June 2025 to June 2026, .357 Mag prices ranged from a low of $0.14 to a high of $3.29 per round, averaging $0.85. The current average of $1.06 per round shows where prices sit today relative to that range.
Is it cheaper to buy .357 Mag ammo in bulk?
Almost always. Buying .357 Mag by the case lowers the per-round cost and spreads shipping across more rounds, since ammo is heavy and shipping is usually a flat or weight-based fee. AmmoBin shows the cost per round for every listing so you can compare bulk cases against single boxes directly.
Ready to buy? See the cheapest .357 Mag ammo in stock right now →