IMR Enduron 8133 Powder - 1lb
$68.78
IMR Enduron 8133 is the slowest burn rate in the Enduron family, yielding outstanding performance in magnum rifle cartridges.
Out of stock
IMR Enduron 8133 is the slowest burn rate in the Enduron family. Loading density is perfect for magnums contributing to superb uniformity. This is a true magnum propellant yielding outstanding performance in 6.5-300 Weatherby 264 Win Mag 28 Nosler and 300 Rem Ultra Mag among other cartridges. Loading density is perfect for magnums nicely filling the case at maximum charges contributing to superb uniformity and accuracy.
The main features of the Enduron series are copper fouling eliminator insensitivity to temperature changes ideal loading density and being environmentally friendly.
IMR 8133 performs comparably to Hodgdon Retumbo but charge weights are materially different.
Made in Canada.
| Weight | 1.140 lbs |
|---|---|
| Dimensions | 6.350 × 3.450 × 3.350 in |
| Manufacturer | Dupont – IMR Powder |
| Finish | Environmentally friendly |
| Weight | 1lb |
| Material | Rifle Powder |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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