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Underwood Ammo, 10mm 200 Grain, Hard Cast Flat Nose, 20/Box - Nickel Plated Brass Casing


Underwood Ammo, 10mm 200 Grain, Hard Cast Flat Nose, 20/Box

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Underwood Ammo’s hard cast featuring a new “Black Cherry” coating. Equipped with new enhancements from our previous Hi-Tek coating. Our “Black Cherry” coating is a  polymer-based compound; its thermal stability allows it to handle more than any other coating today. The coating will protect against gas cutting with a high degree of wear and abrasion resistance. The “Black Cherry” coating prevents lead to bore contact, thus virtually eliminating lead fouling. All 10mm firearms can safely function with this upgraded projectile. To include polygonal rifling (Glock).

Coatings special features:

  • No plastic burning smell
  • Thermally stable
  • Resistant to weathering and chemical degradation
  • Strong mechanical and tensile strength properties
  • Self-lubricating
  • Able to withstand high pressure conditions
  • Able to withstand high heat conditions
  • High degree of wear and abrasion resistance
  • Reduced friction resistance
  • Good flame retarding properties
  • Coating prevents lead to bore contact thus virtually eliminating lead fouling
  • Shoot higher velocities without lead fouling

$28.99
Our Price
$24.49
You Save: $4.50
Price Per Round: $1.22
Financing Available
MFG: Underwood
Model: 248
Bud's Item Number: 177843
UPC: 816874020897
ADD TO CART
Retail Store Availability
In-Store Purchase Only
Lexington, KY Not in store
Greenville, KY Not in store
Sevierville, TN Not in store
10 Reviews

Underwood Ammo, 10mm 200 Grain, Hard Cast Flat Nose, 20/Box

Underwood Ammo’s hard cast featuring a new “Black Cherry” coating. Equipped with new enhancements from our previous Hi-Tek coating. Our “Black Cherry” coating is a  polymer-based compound; its thermal stability allows it to handle more than any other coating today. The coating will protect against gas cutting with a high degree of wear and abrasion resistance. The “Black Cherry” coating prevents lead to bore contact, thus virtually eliminating lead fouling. All 10mm firearms can safely function with this upgraded projectile. To include polygonal rifling (Glock).

Coatings special features:

  • No plastic burning smell
  • Thermally stable
  • Resistant to weathering and chemical degradation
  • Strong mechanical and tensile strength properties
  • Self-lubricating
  • Able to withstand high pressure conditions
  • Able to withstand high heat conditions
  • High degree of wear and abrasion resistance
  • Reduced friction resistance
  • Good flame retarding properties
  • Coating prevents lead to bore contact thus virtually eliminating lead fouling
  • Shoot higher velocities without lead fouling

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Items Like The Underwood Ammo, 10mm 200 Grain, Hard Cast Flat Nose, 20/Box

10 Reviews. 4.7 out of 5 Stars!
5 Stars
90%
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Saverio D on 04/25/2026
Rating:   5 of 5 Stars!

Happy with my purchase. Underwood always delivers

Allen G on 03/26/2026
Rating:   5 of 5 Stars!

Great ammo for dangerous animals , good price. Fast shipping .

Brian R on 10/27/2025
Rating:   5 of 5 Stars!

I purchased this for bear defense during hiking trips to the north GA mountains after doing some research. It performed flawlessly in my Kimber. Fast shipping and great communication from the seller, I’ll definitely purchase from Bud’s agin in the future!

Donald K on 08/14/2024
Rating:   5 of 5 Stars!

Just the round I needed for my upcoming elk hunt in Colorado. Bears can be a concern and this along with my new Springfield 1911 from Bud's will be my safety insurance.

Mark B on 03/28/2024
Rating:   5 of 5 Stars!

Great product, great online reviews. Tried it for myself and was thoroughly impressed with results.

Frank H on 03/29/2023
Rating:   5 of 5 Stars!

Using this ammo in my Glocks 20 and 29 you need to tie yourself to a good size tree. Haven't got any feed back from the Bear I recently shot, but I don't think he ferlt very much of anything....

John L on 03/28/2023
Rating:   5 of 5 Stars!

These rounds bring the juice! Good camp safety toothy critter round if you use a 10mm. Only negative is the geometry of these solids does not work smoothly in a 1911 platform. They do function fine in full sized Glock etc. For tent/ camp defense I place 1 solid bullet in the tube and follow up with a mag full of Underwood 200 gr expanding rounds. Underwood is the best bang for your buck in the boutique ammo industry.

Andres V on 03/28/2023
Rating:   5 of 5 Stars!

I use these as bear defense in the mountains. Would buy again

Donte F on 08/06/2020
Rating:   2 of 5 Stars!

It was miss some ammo out the box one that I got was good

George B on 06/11/2020
Rating:   5 of 5 Stars!

Bought these to test as my carry ammo for woods protection. 100% fire function in my g20 with a steel guide rod and 20# recoil spring. Recoil is very manageable with follow up shots being quick and easy with the proper recoil management techniques
and a fair skill set. Did some testing with beef leg bones and these rounds are quite impressive. I will be using these for my woods carry but as soon as I get out of the boonies I switch mags to hollow points as over penetration in soft targets would be an issue. I put 30 consecutive rnds through the OEM glock barrel very little leading, cleaned the barrel with hoppes bore cleaner and a vigorous scrubbing for a minute with a .45 steel bore brush and it as if it never happened. Good stuff.

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