Grizzly Ammo Gc357M12 357Mag 180Gr Wide Flat Nose Gas Check 20 Per Box/10 C

Grizzly Ammo 357 Magnum 180-grain Wide Flat Nose rounds with gas checks deliver the straight-shooting reliability that handloaders and reloaders depend on for both target work and hunting. Built on a proven wide flat nose profile, these gas-checked bullets are engineered to chamber reliably and pattern consistently through lever-action rifles and revolvers alike—a configuration that matters when you're working up loads for precision or volume shooting.

The gas check is a small copper cup seated on the bullet's base. It protects the lead core from the high-pressure gases escaping past the projectile during firing, enabling hotter loads and cleaner performance than plain-base designs in many applications. For handloaders pushing heavier bullets in magnum loads, or for anyone running reduced loads in rifles or pistols, that extra margin helps maintain velocity and accuracy without leading issues.

You get 20 rounds per box, and a full case contains 10 boxes—perfect for stocking up if you're actively reloading or maintaining consistent ammunition for a favorite wheelgun or lever action. Whether you reload for hunting, sport shooting, or casual range work, Grizzly's gas-checked 357 Mag projectiles are a practical foundation for custom ammunition that shoots the way you want it to.

Key Features

• 180-grain weight optimized for .357 Magnum performance
• Wide flat nose profile for reliable feeding and terminal performance
• Gas check design protects lead core and supports hotter loads
• Convenient 20-round box packaging; case of 10 boxes
• Suitable for handloading in revolvers and lever-action rifles

Specifications

Frequently Asked Questions

What firearms can I use these bullets in?

These .357 Magnum projectiles are designed for handloading into ammunition for .357 Magnum revolvers and lever-action rifles chambered in .357 Magnum or compatible calibers. As with all reloading components, verify your specific firearm's specifications and follow proper reloading data.

Why does the gas check matter for my loads?

The gas check cup prevents hot propellant gases from escaping around the bullet's base and leading the bore. This is especially useful if you're pushing heavier or magnum-level loads, or if you intend to use reduced powder charges in rifles.

How many rounds do I get per case?

Each case contains 10 boxes, with 20 rounds (20 bullets) per box, for a total of 200 projectiles per case.

Is this ammo factory-loaded or reloading components?

These are reloading components—individual bullets for handloaders to assemble into finished ammunition using their own powder, primers, and brass cases.