Underwood Xtreme Defender 10mm Auto 115gr Solid Monolithic Copper Ammo, 20rds
Price History (90 Days)
Is This a Good Price?
Above Average14% above its 90-day average. It has been cheaper.
Want it cheaper? We will watch it for you.
How This Compares to the 10mm Auto Market
Live across the 207 in-stock 10mm Auto listings we track.
Underwood Xtreme Defender 10mm Auto 115gr Solid Monolithic Copper Ammo, 20rds Overview
This is a 20-round pack of Underwood Ammo 10mm Auto in 115gr. At the current price that works out to $1.950 per round, or $1,950.00 per 1,000.
It is currently $38.99. The lowest we have recorded is $31.49, so it is 24% above its floor. Over the last 90 days it has ranged from $31.49 to $38.99.
At $1.950 per round it sits 57% above the $1.239 average across the 207 10mm Auto listings we track. The cheapest credible 10mm Auto we track right now is $0.440 per round.
Figures above are generated from our own price tracking and refresh automatically. Last checked Sep 26, 2026.
Specifications
| Brand | Underwood Ammo |
|---|---|
| Caliber | 10mm Auto |
| Bullet Weight | 115 gr |
| Rounds per Pack | 20 |
| Cost per Round | $1.950 |
| Category | Ammunition |
| UPC | 816874020095 |
| SKU | 51655194917 |
Cheaper 10mm Auto Options
Lower cost per round than this listing, in stock right now.
| Product | Pack | Price | Per Round |
|---|---|---|---|
| Sellier & Bellot Centerfire Handgun Brass 10mm 180-… | 50 | $21.19 | $0.424 |
| WINCHESTER USA 10mm Auto 180 gr Full Metal Jacket F… | 50 | $21.71 | $0.434 |
| SELLIER BELLOT 10mm 180 JHP 50rd | 50 | $21.99 | $0.440 |
| MAGTECH 10mm 180Gr JHP 50rd | 50 | $21.99 | $0.440 |
Questions About This Deal
Is this a good price right now? +
It is currently $38.99, against a recorded low of $31.49. Its 90-day average is $34.26. Set a price alert and we will email you if it drops.
How does this compare to other 10mm Auto ammo? +
It works out to $1.950 per round. The average across the 207 10mm Auto listings we track is $1.239 per round, and the cheapest credible listing is $0.440. Cost per round is the only fair way to compare ammunition, because pack sizes are not standardised.
How much does shipping add to the cost? +
Ammunition ships by ground and is priced by weight, so it matters. Work out the landed cost: add shipping to the box price, then divide by 20 rounds. A pack that is a dollar cheaper but ships for more is not cheaper.
How often is this price updated? +
We re-check every retailer daily and record a new entry whenever the price moves. We have 89 days of price history on this product and have logged 89 price changes in the last 90 days.
Before You Buy
Our guides on how to price and choose this kind of product.
