Description
IMR 8208 XBR is a rifle powder renowned among handloaders for its medium burn rate, making it highly versatile across a range of cartridge applications. Its granular form allows for precise metering, reducing variability in charge weights. Notably, 8208 XBR is celebrated for its remarkable temperature stability, providing consistent performance across varying environmental conditions, which is critical for precision shooting disciplines. This propellant excels in calibers such as .223 Remington, .308 Winchester, and 6.5mm Grendel, where accuracy and reliability are paramount. During load development, 8208 XBR's forgiving nature fosters ease in finding accurate and efficient load combinations, benefitting seasoned reloaders and newcomers alike. IMR's standing in the handloading community is reinforced by the powder's consistent batch quality, supporting confidence with each purchase. Handloaders favor this powder for competitive shooting scenarios and applications where repeatable shot-to-shot consistency is crucial, enhancing its reputation as a top choice for high-performance loads.
Specifications
Burn Rate
4.8 (Medium)
Bulk Density
0.920 g/cm³
Density
1.620 g/cm³
Temperature Sensitivity
Low
Suitable Substitutes
Powders with a similar burn rate that may be suitable alternatives (also see burn rate chart):
Standard Loads — IMR 8208 XBR
Verified load data combinations using IMR 8208 XBR.
.17 Rem.
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem.
Hornady .172 | 25gr | Hornady V-MAX 25gr
.20 BR
Berger .204 | 35gr | Berger FB Varmint 35gr
.20 BR
Berger .204 | 40gr | Berger Varmint 40gr
.20 BR
Berger .204 | 55gr | Berger Varmint 55gr
.20 BR
Hornady .204 | 32gr | Hornady V-MAX 32gr
.20 BR
Hornady .204 | 40gr | Hornady V-MAX 40gr
.20 BR
Hornady .204 | 45gr | Hornady SP 45gr
.20 BR
Nosler .204 | 32gr | Nosler Varmageddon HP 32gr
.20 BR
Nosler .204 | 32gr | Nosler Ballistic Tip Varmint 32gr
.20 BR
Nosler .204 | 32gr | Nosler Varmageddon 32gr
.20 BR
Nosler .204 | 32gr | Nosler Ballistic Tip Lead Free 32gr
.20 BR
Nosler .204 | 32gr | Nosler CT Ballistic Silvertip RN 32gr
.20 BR
Nosler .204 | 40gr | Nosler Ballistic Tip Varmint 40gr
.20 BR
Peregrine .204 | 34gr | Peregrine VLR-4 34gr
.20 BR
Peregrine .204 | 36gr | Peregrine VLR-5 36gr
.20 BR
Sierra .204 | 32gr | Sierra BlitzKing 32gr
.20 BR
Sierra .204 | 36gr | Sierra Spitzer (SPT) 36gr
Subsonic Loads — IMR 8208 XBR
Verified subsonic load data combinations using IMR 8208 XBR.
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid OTM Tactical 230gr
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid Target 230gr
.30-06 Spring.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.30-06 Spring.
Hornady .308 | 175gr | Hornady Sub-X 175gr
.30-06 Spring.
Hornady .308 | 190gr | Hornady Sub-X 190gr
.30-06 Spring.
Lapua .308 | 200gr | Lapua Subsonic 200gr
.30-06 Spring.
MAKER .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 200gr
.30-06 Spring.
MAKER .308 | 220gr | MAKER 300 blackout 220gr
.30-06 Spring.
Peregrine .308 | 155gr | Peregrine Subsonic 155gr
.30-06 Spring.
Reichenberg .308 | 154gr | Reichenberg HDB Subsonic 154gr
.30-06 Spring.
Reichenberg .308 | 200gr | Reichenberg Subsonic 200gr
.30-06 Spring.
Sierra .308 | 220gr | Sierra MatchKing 220gr
.30-06 Spring.
Styria Arms | AERO .308 | 95gr | AERO SUB-I,- smax:11.30 95gr
.30-06 Spring.
Styria Arms | AERO .308 | 115gr | AERO SUB,- smax:11.40 115gr
.30-06 Spring.
Styria Arms | AERO .308 | 190gr | AERO SUB,- smax:23.90 190gr
.308 Win.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.308 Win.
Hornady .308 | 175gr | Hornady Sub-X 175gr
.308 Win.
Hornady .308 | 190gr | Hornady Sub-X 190gr
Community Loads — IMR 8208 XBR
Sample load data calculated with IMR 8208 XBR.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .204 | 55gr | Berger Varmint | 24.0 | 28.0 | 2.20 | 37.5 | 55,274 (94%) | 3232 | |
| .224 | 80gr | Hornady ELD-Match | 22.0 | ••.• | 2.25 | 34.0 | 51,445 (99%) | 2779 | |
| .224 | 70gr | Hornady CX | 18.0 | 26.1 | 2.25 | 34.6 | 46,224 (89%) | 2749 | |
| .224 | 75gr | Hornady ELD-Match | 18.0 | ••.• | 2.26 | 34.6 | 51,329 (99%) | 2749 | |
| .224 | 80gr | Hornady ELD-Match | 22.0 | ••.• | 2.24 | 34.0 | 49,023 (94%) | 2736 | |
| .224 | 85.5gr | Berger Long Range Hybrid Target | 20.0 | 24.9 | 2.26 | 34.6 | 51,937 (100%) | 2657 | |
| .222 | 60gr | Hornady V-MAX | 20.0 | ••.• | 2.10 | 34.6 | 60,244 (97%) | 3258 | |
| .222 | 60gr | Hornady V-MAX | 20.0 | ••.• | 2.10 | 34.6 | 57,151 (92%) | 3212 | |
| .224 | 62gr | Hornady ELD-VT | 20.0 | ••.• | 2.26 | 34.6 | 58,769 (95%) | 3186 | |
| .224 | 75gr | Hornady ELD-Match | 22.0 | ••.• | 2.60 | 50.0 | 57,421 (88%) | 3136 | |
| .224 | 53gr | Nosler Varmageddon | 24.0 | ••.• | 2.31 | 43.5 | 51,503 (88%) | 3497 | |
| .224 | 60gr | Sierra VarmintKing | 23.0 | ••.• | 2.40 | 45.1 | 57,741 (98%) | 3442 | |
| .224 | 53gr | Hornady Match | 23.9 | ••.• | 2.26 | 30.0 | 54,704 (99%) | 3274 | |
| .224 | 53gr | Hornady Match | 23.9 | ••.• | 2.26 | 30.0 | 50,260 (91%) | 3199 | |
| .224 | 53gr | Hornady Match | 23.9 | ••.• | 2.26 | 30.0 | 47,781 (87%) | 3153 | |
| .224 | 53gr | Hornady Match | 23.9 | ••.• | 2.26 | 30.0 | 45,482 (83%) | 3107 | |
| .224 | 53gr | Hornady Match | 23.9 | ••.• | 2.26 | 30.0 | 43,780 (80%) | 3074 | |
| .224 | 75gr | Prvi Partizan HP BT | 24.0 | ••.• | 2.23 | 30.0 | 54,082 (98%) | 2795 |
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