Accurate Magpro Powder 1LB – AMAGPRO1 is a high-energy, double-base rifle powder developed specifically for large magnum rifle calibers that require maximum velocity and performance. With a very slow burn rate, Magpro is optimized for heavy bullets and large-capacity cases, making it an ideal choice for long-range shooters and big game hunters.
This powder performs exceptionally well in cartridges such as .270 Winchester Short Magnum, 7mm Remington Magnum, .300 Winchester Magnum, and .338 Lapua Magnum, offering uniform ignition, flat pressure curves, and excellent ballistic efficiency.
Its spherical grain structure allows for smooth metering and easy use in progressive or high-volume loading setups, and its temperature stability ensures consistent results across a variety of shooting environments.
Key Features:
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Slow-burning spherical rifle powder
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Optimized for magnum rifle calibers with heavy bullets
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Great for .270 WSM, 7mm Rem Mag, .300 Win Mag, and .338 Lapua
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Temperature stable for long-range consistency
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Excellent metering in progressive reloading setups
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Clean-burning, double-base formula
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Made in the USA
Manufacturer Specifications:
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Powder Type: Double-base spherical
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Burn Rate: Very slow
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Intended Use: Magnum rifle cartridges
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Compatible Calibers: .270 WSM, 7mm RM, .300 WM, .338 Lapua
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Container Size: 1 pound
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Country of Origin: United States (Western Powders / Accurate Powders)
FAQ
Q: What calibers is Accurate Magpro ideal for?
A: It’s perfect for magnum rifle cartridges such as .270 WSM, 7mm Rem Mag, .300 Win Mag, and .338 Lapua Magnum.
Q: Is Accurate Magpro suitable for long-range shooting?
A: Yes. Its consistent ignition, clean burn, and temperature stability make it a top choice for precision long-range applications.
Q: How well does Magpro meter in reloading equipment?
A: It meters exceptionally well due to its spherical grain structure, making it ideal for progressive presses.
Q: Is this powder good for hunting loads?
A: Absolutely. Magpro provides the high energy and case fill needed for serious big game hunting cartridges.
Q: Is it temperature stable?
A: Yes. Magpro is designed to perform consistently across varying temperatures.
Brought to you by Black Bayou Armory.






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