Will this weapon fire 380ACP +p ammunition, such as Underwood Ammo or Buffalo Bore?

Name: Old West Big Bore, Derringer, 380 ACP, 3.5 Black, Pearl Grips
Brand: Old West Firearms
SKU: 714028666
Availability: OutOfStock

Hi Phil and welcome. You can fire +P in moderation. A point that many miss is +P = more powder which recommends a minimum of 4 inch barrel for the powder to be fully burned. In a short barreled derringer, you only get more muzzle flash, boom and nowhere near the performance you think due to said unburnt powder. Stick with standard pressure ammo in derringers for faster follow up shots. That extra +P performance out of a 4 inch plus barrel shrinks down dramatically in a derringers barrel. You are better off with ammunition optimized for shorter barrels. Cheers, stay safe and enjoy!

Per the owners manual - No, because: "(+P) Plus P ammunition generates pressures in excess of standard ammunition and are unsafe for the Derringer design. DO NOT use (+P) load in any OLD WEST manufactured Derringer." That being said, these guns are all the same frame with different barrels and the company makes 9mm models which should still generate higher pressure than even the hottest 380.

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Old West Big Bore, Derringer, 380 ACP, 3.5 Black, Pearl Grips - 3.5" Barrel, 2 Rounds, Ivory/Pearl Grips, Iron Sights

Reviews| 3 Questions & Answers

Model: BBG380BPOWF

Condition: Factory New

Bud's Item Number: 714028666

UPC: 850051445059

MFG: Old West Firearms

Questions & Answers (3) Reviews 0 out of 5

Old West Big Bore, Derringer, 380 ACP, 3.5 Black, Pearl Grips

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Old West Big Bore, Derringer, 380 ACP, 3.5" Barrel, Alloy Frame, Matte Finish, Black, Pearl Grips, Fixed Sights, 2 Rounds BBG380BP

Product Information

Type

Derringer

Caliber

380 ACP

Barrel Length

3.5

Capacity

Grips

Ivory/Pearl

Sights

Iron Sights

OUT OF STOCK

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Questions & Answers

Q: Will this weapon fire 380ACP +p ammunition, such as Underwood Ammo or Buffalo Bore?
Answered

Asked 04/06/2024 19:04 by phil s

A:

Hi Phil and welcome. You can fire +P in moderation. A point that many miss is +P = more powder which recommends a minimum of 4 inch barrel for the powder to be fully burned. In a short barreled derringer, you only get more muzzle flash, boom and nowhere near the performance you think due to said unburnt powder. Stick with standard pressure ammo in derringers for faster follow up shots. That extra +P performance out of a 4 inch plus barrel shrinks down dramatically in a derringers barrel. You are better off with ammunition optimized for shorter barrels. Cheers, stay safe and enjoy!
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