Brand: St. Marks Powder · SKU: WC297 · MPN: WC297 · Category: Components
WC297 is a double-based, spherical smokeless powder designed for small rifle and magnum handgun loads. It is also suitable for some shotshell applications. It is recognized as being the same powder as FS-11 and W296. Recommended uses include .30 Carbine, .375 Super Mag, .44 Mag, .357 Mag, .41 Mag, .45 Colt, .281 Bee, .22-250, .223 Rem, and .243. It is also listed as a propellant for 300 AAC Blackout (supersonic), 357 Magnum, 44 Rem Mag, and 410 bore applications. St. Marks Powder, a division of General Dynamics Ordnance and Tactical Systems, manufactures this powder. The ideal storage condition is at 21°C (70°F) with 50% relative humidity, and it can withstand temperatures from -40°C (-40°F) to +50°C (+122°F). It is classified as explosive and carries hazards including fire, blast, or projection. It is harmful if swallowed, causes serious eye irritation, and may cause an allergic skin reaction. Prolonged or repeated exposure may damage organs such as the circulatory system, blood, kidn
| Base | Double |
|---|---|
| Type | Spherical |
| Application | Small rifle & magnum handgun loads, Shotshell |
| Burning Rate | Fast |
| Calibers (Rifle) | 300 AAC Blackout (Supersonic), 22-250 Rem, 223 Rem, 243 Win, 30 Carbine |
| Calibers (Handgun) | 357 Magnum, 41 Magnum, 44 Magnum, 45 Colt, 375 Super Mag, 281 Bee, 38 Super, 357 Sig, 40 S&W |
| Equivalent Powders | FS-11, W296 |
| Calibers (Shotshell) | 410 bore |
| Warranty | Not Available |
| Weight | Not Available |
| Dimensions | Not Available |
WC297 is a double-based, spherical smokeless powder suitable for a variety of firearm applications, including small rifle cartridges, magnum handgun loads, and some shotshell applications. It is known for its fast burn rate and is equivalent to FS-11 and W296 powders. It is manufactured by St. Marks Powder and is designed for use in sporting and recreational shooting.
Yes, this WC297 (WC297) is 100% genuine St. Marks Powder hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This WC297 includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the WC297.