Product Overview
This magnum, extruded powder was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum, etc. Retumbo adds 40-100 fps more velocity to these cartridges when compared to other normal magnum powders.
In addition, it is an Extreme Powder, making it perfect for big game hunting under all types of conditions.
Made in Australia
Available in 1 lb. and 8 lb. containers.
Reviews
15 Reviews
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5 Retumbo
Posted by ed on Aug 26th 2023
I have used Retumbo for my 7mm and 300 Win mag with great success for years and highly recommend !! Thanks Hodgdon !!
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5 Retumbo Powder
Posted by Daniel Boyd on Aug 21st 2023
Good ES and SD under a variety of weather temps. Solid performer!!
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5 Retumbo
Posted by Joshua R Morigeau on Aug 11th 2023
Works like a hammer on my 7mm Rem Mag with 168 Bergers.
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5 Retumbo Smkeless Powder
Posted by Terry Alger on Jul 7th 2023
Retumbo is my absolute most favorite gunpowder for the big magnums. I get extra velocity and great shot repeatability.
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5 Retumbo
Posted by Jeff Redden on Jul 3rd 2023
Great powder for my 25-06. Good velocity and accuracy. Product arrived a couple days after ordering
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5 Awesome for Large Magnum
Posted by Greg on Jul 3rd 2023
Perfect for my savage 110 long range hunter chambered in 338 LM. 87.5 gr behind a 300 gr A-Tip yields a .6 MOA.
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5 Retumbo
Posted by dwight allen on Apr 25th 2022
loading .300prc,Great s
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5 Best slower burn rate powder I’ve used
Posted by Kevin H on Apr 24th 2022
This is by far the best powder in my .300 Norma improved. Might as well be fairy dust but if you can get some it’s going to work well in big .30s for sure. Very temp stable and very consistent ES. Hoping to find some more when I can!
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5 Retumbo
Posted by Steve on Apr 16th 2022
Undoubtedly the best Magnum powder out there. Use I 7mm rem mag and 270 WSM with excellent accuracy and speeds.
