The Underwood Ammo 297 is 10mm Auto ammunition loaded with 180‑grain full metal jacket bullets for general-purpose and range use. Rounds are produced as new‑production, non‑corrosive, boxer‑primed, reloadable brass‑case ammunition. Listed ballistics include a muzzle velocity of 1250 feet per second and a muzzle energy of 625 ft·lbs. Each retail box contains 50 loaded rounds and case quantities are achieved by ordering the required number of boxes.
Key Specifications
- The cartridge caliber is 10mm Auto.
- The bullet weight is 180 grains.
- The bullet type is Full Metal Jacket (FMJ).
- The listed muzzle velocity is 1250 feet per second.
- The listed muzzle energy is 625 ft·lbs.
- The cases are described as boxer‑primed, reloadable brass.
- The product is described as new production, non‑corrosive.
- The bullet is reported to contain lead.
- Each retail box contains 50 rounds.
- The product description states it is safe to use in a suppressor.
This load provides consistent, reloadable brass cases and predictable listed ballistics for range training and general‑purpose use. The combination of 180‑grain FMJ bullets and the listed velocity profile makes it a practical option where full metal jacket performance and brass cases are preferred.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




