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IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges.
The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly.
This propellant performs comparably to Hodgdon Varget but charge weights are materially different.
IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data.
Available in 1-LB and 8-LB containers.
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
39.9 | 2,895 | 49,200 PSI | 44.7 | 3,133 | 60,300 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
33.2 | 2,812 | 49,300 PSI | 37.4 | 3,056 | 60,900 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
34.8 | 2,867 | 50,700 PSI | 39.0 | 3,101 | 62,100 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
33.1 | 2,819 | 49,100 PSI | 37.3 | 3,063 | 61,000 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
35.4 | 2,819 | 46,600 PSI | 39.8 | 3,103 | 59,800 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
35.1 | 2,847 | 47,300 PSI | 39.5 | 3,116 | 60,400 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
39.7 | 2,893 | 47,100 PSI | 44.5 | 3,163 | 60,400 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
39.7 | 2,893 | 47,100 PSI | 44.5 | 3,163 | 60,400 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
37.3 | 2,870 | 49,300 PSI | 41.0 | 3,131 | 59,900 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
44.1 | 2,981 | 46,700 PSI | 48.0 | 3,256 | 60,300 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
28.0 | 2,588 | 42,000 PSI | 30.0C | 2,755 | 51,200 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
27.0 | 2,502 | 37,700 PSI | 30.0C | 2,803 | 52,300 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
24.0 | 2,542 | 40,500 PSI | 26.5 | 2,791 | 52,900 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
23.0 | 2,525 | 40,500 PSI | 25.3C | 2,755 | 52,400 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
20.0 | 2,431 | 46,800 PSI | 22.9 | 2,643 | 53,000 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
38.0 | 2,981 | 50,700 PSI | 41.0 | 3,171 | 59,900 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
37.0 | 2,804 | 50,700 PSI | 40.5 | 3,002 | 59,100 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
33.0 | 2,685 | 50,300 PSI | 36.0 | 2,878 | 58,400 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
41.0 | 2,860 | 52,000 PSI | 43.5 | 3,004 | 58,200 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
43.0 | 2,929 | 50,600 PSI | 46.0 | 3,101 | 58,000 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
42.0 | 2,946 | 52,900 PSI | 45.0 | 3,077 | 58,200 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
46.0 | 2,925 | 52,800 PSI | 48.8C | 3,055 | 58,600 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
35.0 | 2,810 | 51,300 PSI | 38.0 | 2,974 | 58,800 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
36.5 | 2,861 | 52,000 PSI | 39.5 | 3,027 | 58,900 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
29.0 | 2,194 | 38,800 CUP | 32.0C | 2,510 | 50,100 CUP | |||
29.0 | 2,439 | 38,800 CUP | 32.0C | 2,719 | 50,100 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
29.0 | 2,248 | 37,700 CUP | 31.5C | 2,516 | 49,800 CUP | |||
29.0 | 2,516 | 37,700 CUP | 31.5C | 2,738 | 49,800 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
29.0 | 2,113 | 41,100 CUP | 32.0 | 2,369 | 50,700 CUP | |||
29.0 | 2,476 | 41,000 CUP | 32.0 | 2,694 | 50,700 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
26.0 | 2,334 | 36,600 CUP | 28.5 | 2,569 | 49,900 CUP | |||
26.0 | 2,524 | 36,600 CUP | 28.5 | 2,743 | 49,900 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
31.0 | 2,309 | 40,900 CUP | 33.0C | 2,486 | 45,300 CUP | |||
31.0 | 2,582 | 40,900 CUP | 33.0C | 2,706 | 45,300 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
40.0 | 2,655 | 41,400 CUP | 42.5 | 2,827 | 49,600 CUP | |||
40.0 | 2,968 | 41,400 CUP | 42.5 | 3,144 | 49,600 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
43.0 | 2,689 | 44,600 CUP | 46.5 | 2,873 | 50,000 CUP | |||
43.0 | 3,109 | 44,600 CUP | 46.5 | 3,231 | 50,000 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
39.0 | 2,622 | 44,600 CUP | 41.2 | 2,752 | 49,700 CUP | |||
39.0 | 2,977 | 44,600 CUP | 41.2 | 3,123 | 49,700 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
47.0 | 2,657 | 42,100 CUP | 49.0 | 2,786 | 46,300 CUP | |||
47.0 | 3,080 | 42,100 CUP | 49.0 | 3,171 | 46,300 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
41.0 | 2,585 | 41,000 CUP | 45.0 | 2,942 | 49,900 CUP | |||
41.0 | 3,037 | 41,000 CUP | 45.0 | 3,286 | 49,900 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
42.0 | 2,636 | 40,800 CUP | 45.7 | 2,931 | 49,600 CUP | |||
42.0 | 3,060 | 40,800 CUP | 45.7 | 3,277 | 49,600 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
37.5 | 2,917 | 40,300 CUP | 40.0 | 3,105 | 49,000 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
47.0 | 3,041 | 44,900 CUP | 49.5 | 3,157 | 50,100 CUP |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
65.0 | 3,388 | 51,800 PSI | 70.0 | 3,647 | 63,200 PSI |
Grs. | Vel. | Pressure | Grs. | Vel. | Pressure | |||
---|---|---|---|---|---|---|---|---|
63.0 | 3,408 | 53,000 PSI | 68.0 | 3,628 | 61,900 PSI |
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