Winchester Big Bore is handgun ammunition intended for personal defense and hunting applications. It is provided in retail boxes intended for civilian sale and range use. Packaging is available by the box for retail purchase and by the case for bulk orders.
Box: This product is sold per box containing the retail quantity of cartridges (20 rounds per box). Case: This product can be ordered by the case, which is fulfilled by shipping the required number of individual boxes to complete the case quantity (10 boxes = 200 rounds per case).
Key Specifications
- The brand is Winchester.
- The model is Big Bore.
- The cartridge is .357 Magnum.
- Each box contains 20 rounds.
- A full case contains 10 boxes (200 rounds).
- The cartridge cases are made of brass.
- The listed muzzle velocity is 1460 ft/s.
- The listed muzzle energy is 748 ft lbs.
- Reloadable: Yes.
Winchester Big Bore ammunition provides a straightforward, reliable option for shooters who need brass-cased .357 Magnum cartridges in standard retail boxes. Its packaging options make it convenient for both single-box purchasers and those buying in bulk, and the listed performance figures support typical hunting and personal-defense load expectations.
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.




