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If you run a .44 Magnum and you're looking for something that doesn't mess around, this is the ammunition you want on hand. Grizzly loaded the GC44M+P1 to be a workhorse for hunting and serious field applications. The 355-grain bullet is about as heavy as they come for the caliber, which means downrange energy that doesn't quit and penetration that goes deep through whatever's in front of it.
That wide long nose gas check bullet profile is what sets this round apart. The gas check keeps the hard cast bullet from leading up your barrel, and the long nose gives you a sleek profile that cuts through the air and doesn't deform on impact the way a soft bullet would. This is purpose-built ammunition that respects what the .44 Magnum is supposed to do.
The +P+ rating is the key to the performance here. Grizzly pushed this load to maximum safe pressure levels, which is how they squeezed out 1350 fps and 1436 ft-lbs of energy from a .44 Magnum platform. That's serious power, and it's the kind of ballistics you'll want in a revolver designed to handle the extra pressure. Make sure your firearm is rated for +P+ before loading it up.
This ammunition comes in the standard commercial 20-round box format, which gives you a good working quantity without committing to a case at a time. Grizzly is made in the USA and built with the kind of quality control that's expected from ammunition designed for hunting situations where a second chance isn't guaranteed. Each round is manufactured to the same standard so you can trust the performance from shot to shot.
No. The +P+ pressure rating makes this load hotter than standard .44 Magnum ammunition. You need a revolver that's specifically rated for +P+ pressure. Modern Ruger Super Blackhawks and similar heavy-frame revolvers will handle it fine, but if you're unsure about your firearm, check the manufacturer's specifications or talk to a gunsmith before firing this ammunition.
This is a solid choice for deer, hog, and bear depending on your area and your revolver. The heavy bullet and deep penetration are what you're paying for. The wide long nose gas check design means the bullet holds together on impact instead of fragmenting, which is critical for hunting applications where you need reliable performance on living animals.
Grizzly loads the GC44M+P1 to standard SAAMI dimensions, so it will feed in lever action rifles that accept standard .44 Magnum ammunition. However, check your rifle's manual before shooting +P+ loads. Some lever actions are rated for standard pressure only. Ruger lever actions and similar modern designs usually handle it without issue, but older rifles might not be safe with the elevated pressure.
The gas check is a small cup at the base of the hard cast bullet that prevents lead fouling in your barrel. When you're pushing a 355-grain hard cast bullet at +P+ velocities, you need that gas check to keep the bullet from stripping and leading up the bore. It also helps the bullet hold together better under the stresses of the higher velocity.
| Caliber/Gauge | .44 Magnum |
|---|---|
| Cost per Round | 1.90 |
| Grains | 355 gr |
| Manufacturer | |
| Manufacturer Part Number | GC44M+P1 |
| Units per Box | 20 |
| UPC | 815152013811 |
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