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Time does not stand still and neither does the IMR brand. Although the brand continues to be a favorite of handloaders everywhere, new technology has allowed improved versions of the traditional IMR burn speeds to be introduced. These improved powders, identified by the “Enduron” sub-branding, offer improved temperature stability and an additive that removes copper bullet jacket fouling as you shoot. The Enduron powders are the first to offer all these features at the same time. The Enduron powder line continues to bring new burn rate offerings to the handloader

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