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Since 2009, Bishop Ammunition & Firearms has manufactured its Cowboy Ammunition to exacting standards. Using only US made components, the cleanest burning powder to replicate black powder loadings, we bring to our customers full quality control over every stage of the manufacturing process as well as the final product.

Our goal is to market the best cowboy action ammunition in the industry. Each cartridge is assembled using the highest quality components for absolute reliability. Developed specifically for Cowboy Action Shooting competition, Bishop Ammunition & Firearms Cowboy Action pistol ammunition features flat nose lead bullets that are manufactured by X-Treme Bullets, to assure accuracy and knockdown power for steel plate competition. Cowboy Action Ammunition from Bishop Ammunition & Firearms use only the highest quality components and are manufactured to exacting standards to comply with the rules and requirements of cowboy action shooting. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.

Cowboy action shooting, CAS, is also known as western action shooting, single action shooting, or cowboy 3-gun. This is a competitive shooting sport that is now practiced in many places throughout the World. There are multiple sanctioning organizations including but not limited to:
- Single Action Shooting Society (SASS),
- Western Action Shootists Association (WASA), and
- National Congress of Old West Shooters (NCOWS), as well as others in the United States as well as other countries.

Cowboy action shooting is a type of 3 gun match utilizing a combination of pistol or pistols, rifle, and/or shotgun in a varying "old west themed" courses. Matches are scored for time and accuracy. It is required that all participants dress in appropriate theme or era "costume", and their gear and accessories must be period correct and are mandated by sanctioning group rules. CAS competitors must use firearms typical of the mid-to-late 19th century:
- single-action revolvers,
- lever-action rifles chambered in pistol calibers, and
- side-by-side double-barreled shotguns, commonly called Coach Guns

Rules also allow Winchester 1887 lever-action shotguns and Colt Lightning slide-action rifles to be used in competition. Cowboy action shooters may use original or reproduction guns, however all handguns must be "single-action".

The standard for ammunition used in all smokeless categories in all SASS, must have a power of at least 60 and no velocity may be less than 400 fps. The maximum velocity for revolvers is 1000 fps. The maximum velocity for rifles is 1400 fps. Of interesting note is that pocket pistols, derringers, and long-range rifles are exempt from the power factor and velocity requirements. To calculate a power factor, multiply the bullet weight times the velocity and then the resulting number is divided by 1000. For example, a 250 gr bullet traveling at 710 fps has a power factor of 177.5 (250x710)/1000=177.5 Shooters have to be concerned about "bounce back", "splash" and damage caused to a target or injury to personnel due to inappropriate ammunition. This is a major safety violation is grounds instant disqualification and ejection from a match. Additionally, revolver and rifle ammunition may not be jacketed, semi-jacketed, plated, gas checked, or copper washed. ALL cowboy ammunition must be lead, however, molydisulfide, polymer coated bullets are acceptable. All revolver and rifle ammunition must be of single projectile design. The ammunition cannot be recessed below the case mouth. Propellants containing nitrocellulose are prohibited as black powder substitutes. Any combination of smokeless and black powder, called duplex loads, are not only inherently unsafe, are specifically prohibited in ANY category.
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.45 Colt Reload Service: You send us brass to be cleaned and reloaded, Cowboy Action Load, 250g RNFP Lead, 50 Rounds per bag NEW  Bishop 38-55 Winchester Cowboy Action Ammunition  240g RNFP - Made in the U.S.A. Per 20 NEW MADE 45 Colt Ammo, Cowboy Action Load, 200g RNFP Lead, New Brass - 50 Rounds per box -  Made in the U.S.A. with U.S. Components.
California Proposition 65 WARNING: This product can expose you to one or more chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

AS OF JAN 1 2018, THIS ITEM CANNOT BE ORDERED AND SHIPPED DIRECTLY TO CALIFORNIA RESIDENTIAL ADDRESSES. THIS ITEM CAN ONLY BE SHIPPED TO LICENSED AMMUNITION VENDORS IN CALIFORNIA. CALIFORNIA LICENSED GUN DEALERS ARE AUTOMATICALLY CONSIDERED LICENSED AMMUNITION VENDORS.
As soon as I tell UPS I'm shipping ammunition to a California address, they require me to show them a copy of the destination FFL or ammunition vendor license.

This is a reloading service we provide for people who already have brass they want reloaded. Sending us this brass to be reloaded is a requirement of this service. Do not order this service if you do not have brass you want cleaned and reloaded.

Price is per 50 rounds of 45 Long Colt Cowboy Action. *Please contact us BEFORE* placing an order for this to verify you will be sending us brass to reload. This is NOT already reloaded cartridges!

*Customer-supplied brass* is reloaded at our facility in North Highlands, California. All cases are deprimed, stainless steel media cleaned inside and out, primer pocket swaged, and full length resized. Cases are then loaded on commercial-grade presses with the same quality components as our new brass cartridges and each cartridge is hand inspected.
  • Each bag contains 50 cartridges, double-struck hardcast bullets and American made primers.
  • Match-Grade
  • Top Quality, Position and Temperature Insensitive Powder
  • 1/10th Grain Consistency = Increased Accuracy = Better Performance
  • We use Trail Boss, manufactured in Australia by Australian Defense Industries. (Also repackaged in the U.S. by Hodgdon).
  • Power Factor: 150
  • Velocity: 710 fps


Please see our updated return policy concerning ammunition returns. MUST BE 21 OR OVER TO PURCHASE.
Shipped UPS Ground, Adult Signature Required.
Bishop Ammunition New Manufactured Cowboy Action Loaded 38-55 cartridges are made in the U.S.A at our plant in North Highlands, California. All components used in this cartridge are sourced to companies in the U.S.A. This cartridge is loaded on commercial-grade presses, and each cartridge is personally hand inspected and hand packed in the box. CANNOT BE USED FOR HUNTING IN CALIFORNIA.

  • Each box contains 20 cartridges using brand new Starline Brass.
  • Oregon Trail 240 gr 0.380" dia bullet
  • Match-Grade
  • Top Quality, Position and Temperature Insensative Powder
  • 1/10th Grain Consistency = Increased Accuracy = Better Performance.
  • All cartridges are packed in standard trays.
  • Each box will contain all new Starline brass cases
  • Muzzle velocity approximately 1250fps.
The 38-55 is not an obsolete cartridge. Several manufacturers still offer the 38-55 in their rifles, both single shot and lever action. The 38-55 is also still considered the preferred thin skin game taking cartridge there is. Millions of rifles have been chambered in this cartridge and loaded properly is effective on brown and black bear.

By purchasing this product, you certify that you are at least 21 years of age and you are legally allowed by your local, state and/or federal laws to posses and/or purchase / receive this item.
Bishop Ammunition New Manufactured Cowboy Action Loaded 45 Colt cartridges are made in the U.S.A at our plant in North Highlands, California by U.S. Citizens. All components used in this cartridge are sourced to companies in the U.S.A. This cartridge is loaded on commercial-grade presses, and each cartridge is personally hand inspected and hand packed in the box.
  • Each box contains 50 cartridges using brand new Starline Brass, swaged hardcast bullets and American made primers.
  • Match-Grade
  • Top Quality, Position and Temperature Insensitive Powder
  • 1/10th Grain Consistency = Increased Accuracy = Better Performance.
  • All cartridges are packed in standard trays.

  • Power Factor: 160
  • Velocity: 800 fps
BISHOP AMMO 45 COLT COWBOY 250gr RNFP 50/bx
California Proposition 65 WARNING: This product can expose you to one or more chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

AS OF JAN 1 2018, THIS ITEM CANNOT BE ORDERED AND SHIPPED DIRECTLY TO CALIFORNIA RESIDENTIAL ADDRESSES. THIS ITEM CAN ONLY BE SHIPPED TO LICENSED AMMUNITION VENDORS OR FIREARMS DEALERS IN CALIFORNIA.

CONTAINS LEAD. NOT TO BE USED FOR HUNTING WITHIN CALIFORNIA.

Bishop Ammunition New Manufactured Cowboy Action Loaded 45 Colt cartridges are made in the U.S.A at our plant in Pocatello, Idaho. All components used in this cartridge are sourced to companies in the U.S.A. This cartridge is loaded on commercial-grade presses, and each cartridge is hand inspected and hand packed in the box.

  • Each box contains 50 cartridges using brand new Starline Brass, swaged hardcast Rimrock bullets and American made primers.
  • Cowboy Action Ammunition
  • Top Quality, Position and Temperature Insensitive Powder
  • 1/10th Grain Consistency = Increased Accuracy = Better Performance.
  • All cartridges are packed in standard trays.

  • Power Factor: 150
  • Velocity: 710 fps


Please see our updated return policy concerning ammunition returns. MUST BE 21 OR OVER TO PURCHASE.

By purchasing this product, you certify that you are at least 21 years of age and you are legally allowed by your local, state and/or federal laws to posses and/or purchase / receive this item.