![HSM .38-55 Win 240 Grain Cowboy Action RNFP - 20 Rounds (Box) [NO TAX outside Texas] FREE SHIPPING OVER $199](https://kirammo.com/wp-content/uploads/2022/08/HSM-.38-55-Win-240-Grain-Cowboy-Action-RNFP-100x100.png "HSM .38-55 Win 240 Grain Cowboy Action RNFP - 20 Rounds (Box) [NO TAX outside Texas] FREE SHIPPING OVER $199")
))/2353386.json?$BPSMkt_ProductFeeds$&extend=380,380,380,380 "HSM Cowboy .38-55 Winchester 240 Grain Action Round Nose Flat Point Handgun Ammo")
))/2353386.json "HSM Cowboy .38-55 Winchester 240 Grain Action Round Nose Flat Point Handgun Ammo")
![Black Hills Cowboy Action .38-55 Win CASE 255 Grain Flat Nose Lead - 200 Rounds (CASE) [NO TAX outside Texas] FREE SHIPPING OVER $199](https://kirammo.com/wp-content/uploads/2023/08/Black-Hills-Cowboy-Action-.38-55-Win-255-Grain-Flat-Nose-Lead-333x333.jpg "Black Hills Cowboy Action .38-55 Win CASE 255 Grain Flat Nose Lead - 200 Rounds (CASE) [NO TAX outside Texas] FREE SHIPPING OVER $199")
![Black Hills Cowboy Action .38-55 Win 255 Grain Flat Nose Lead - 20 Rounds (Box) [NO TAX outside Texas] FREE SHIPPING OVER $199](https://kirammo.com/wp-content/uploads/2023/08/Black-Hills-38-55-temp-333x333.jpg "Black Hills Cowboy Action .38-55 Win 255 Grain Flat Nose Lead - 20 Rounds (Box) [NO TAX outside Texas] FREE SHIPPING OVER $199")
38-55 Win Ammo
38-55 Win Ammo For Sale From Various Online Ammo Vendors
We created a Bulk Cheap Ammo directory to help gun owners find in-stock ammo in one place from top ammo retailers. With easy & advanced search navigation, we save you time finding cheap ammo deals.
About .38-55 Win Ammo
- Type Rifle
- Place of origin United States
- Production history
- Designer Ballard Rifle & Cartridge Company
- Designed 1884
Specifications
- Case type Rimmed straight
- Bullet diameter .3775 in (9.59 mm)
- Neck diameter .392 in (10.0 mm)
- Base diameter .421 in (10.7 mm)
- Rim diameter .506 in (12.9 mm)
- Case length 2.085 in (53.0 mm)
- Overall length 2.510 in (63.8 mm)
- Rifling twist 1 turn in 18"
- Maximum CUP 30,000 CUP
Ballistic performance
| Bullet mass/type | Velocity | Energy |
|---|---|---|
| 255 gr (17 g) 1,321 | ft/s (403 m/s) 988 | ft⋅lbf (1,340 J) |
| 255 gr (17 g) 1,593 | ft/s (486 m/s) 1,437 | ft⋅lbf (1,948 J) |
The .38-55 Winchester cartridge (actually .3775 caliber) was introduced in 1876 by Ballard. Marlin Firearms used it from 1875 on for various single-shot target rifles and their 1893 lever-action rifle.
The .38-55 is used for hunting black bear and deer at moderate ranges and in cowboy action shooting side matches.
