Description
This Grizzly Ammo load brings real hunting capability to the 45 Colt in a practical, do-it-all package. The 265-grain wide flat nose bullet with gas check is cast from virgin alloy and heat-treated for durability that won't fragment or break apart on contact. The wide, flat profile creates serious wound channels that drop game quickly, especially valuable in wooded terrain where brush deflection matters. The gas check seated on the bullet base seals propellant gases for cleaner burning and more efficient energy delivery, keeping lead buildup minimal and letting you shoot longer without worrying about fouling.
About the Grizzly 45 Colt Load
Muzzle velocity runs 950 feet per second with 531 foot-pounds of muzzle energy, making it standard pressure ammunition suitable for the full range of 45 Colt firearms from SAA clones to modern revolvers. This isn't a max-power load, which means less wear on vintage guns and a more pleasant shooting experience. The ballistics flatten out nicely to around 50 yards before gravity takes its toll, which is perfectly realistic for the caliber. Each box contains 20 rounds with brass cases and reloadable Boxer primers.
Grizzly's Cast Performance Approach
Grizzly manufactures their ammunition domestically and uses cast performance bullets throughout their handgun lineup. The combination of virgin alloy, heat treatment, and the gas check means you're getting bullets designed to penetrate deep and hit hard without the premium pricing of jacketed options. These rounds shoot consistently and feedback from folks using them in Henry carbines and Ruger revolvers points to accuracy that's genuinely impressive for the price point.
Key Specifications
- Caliber: .45 Colt
- Bullet Weight: 265 grains
- Bullet Type: Lead Wide Flat Nose Gas Check
- Muzzle Velocity: 950 fps
- Muzzle Energy: 531 ft-lbs
- Rounds per Box: 20
- Case Type: Brass
- Primer Type: Boxer (reloadable)
- Pressure Level: Standard
- Manufacturer: Grizzly Cartridge
- Manufacturer Part Number: GC45C4
- UPC: 815152010155
- Country of Origin: USA
- Recommended Uses: Hunting (deer), target shooting, sport shooting
What’s Included
- 20 rounds of 45 Colt ammunition
Frequently Asked Questions
What's the gas check on these bullets for?
The gas check is a small copper cup on the bullet's base that seals propellant gases behind the projectile, promoting more complete and efficient ignition. This reduces fouling and helps maintain accuracy, especially important with cast lead bullets fired at the velocities Grizzly loads them to.
Will Grizzly's 45 Colt ammo work in my older Colt SAA or Winchester rifle?
Yes, this is standard pressure ammunition designed to function safely across the full spectrum of 45 Colt firearms. Whether you're shooting a Colt Single Action Army, Ruger revolver, Henry lever rifle, or Model 1892 Winchester, this load falls well within safe operating parameters for all of them.
What makes the wide flat nose design better for hunting than round nose bullets?
The wide, flat meplat (nose) creates a larger impact surface that transmits energy more effectively and crushes tissue rather than punching a small hole. This translates to wider wound channels, better energy transfer to the target, and more reliable performance on game.
Are these brass cases reloadable?
Yes, the ammunition comes with Boxer-primed brass cases that are fully reloadable. You can reload these cases the same way you would other 45 Colt brass once you've fired them.




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