Description
Winchester 748 is a medium burn rate rifle powder, widely respected in the handloading community for its consistency and versatility in loading a variety of rifle calibers. It is particularly suitable for high-volume cartridge reloading, including popular calibers such as .223 Remington and .308 Winchester. The powder features a spherical, or ball, physical form that ensures smooth metering through progressive and automated reloading equipment, enhancing the efficiency of the reloading process. Winchester 748 exhibits excellent temperature stability, making it a reliable choice for maintaining performance across diverse environmental conditions. This stability is particularly advantageous when developing loads for competitive shooting or long-range applications where consistency is critical. The powder’s attributes allow handloaders to achieve optimal velocity and pressure for targeted performance. When developing loads with Winchester 748, reloaders should consider starting at the lower end of recommended charges and gradually work up while monitoring for accuracy and pressure signs. Its well-balanced performance characteristics grant reloaders an edge in precision and adaptability.
Specifications
Burn Rate
4.6 (Medium)
Bulk Density
0.963 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 — Winchester 748
Verified load data combinations using Winchester 748.
.17 Rem.
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem.
Hornady .172 | 25gr | Hornady V-MAX 25gr
.17 Rem.
Impala Bullets .172 | 22gr | Impala LW CFN 22gr
.17 Rem.
Peregrine .172 | 22gr | Peregrine VLR-5 22gr
.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
Impala Bullets .204 | 30gr | Impala LW CFN 30gr
.20 BR
Impala Bullets .204 | 30gr | Impala LWHV LS 30gr
.20 BR
Nosler .204 | 32gr | Nosler Ballistic Tip Varmint 32gr
.20 BR
Nosler .204 | 32gr | Nosler Ballistic Tip Lead Free 32gr
.20 BR
Nosler .204 | 32gr | Nosler Varmageddon HP 32gr
.20 BR
Nosler .204 | 32gr | Nosler Varmageddon 32gr
.20 BR
Nosler .204 | 32gr | Nosler CT Ballistic Silvertip RN 32gr
.20 BR
Nosler .204 | 40gr | Nosler Ballistic Tip Varmint 40gr
Subsonic Loads — Winchester 748
Verified subsonic load data combinations using Winchester 748.
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid Target 230gr
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid OTM Tactical 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 — Winchester 748
Sample load data calculated with Winchester 748.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .224 | 62gr | Norma RN | 22.0 | 25.0 | 2.26 | 28.8 | 47,224 (86%) | 2936 | |
| .224 | 55gr | Prvi Partizan SP | 16.0 | ••.• | 2.26 | 30.0 | 48,225 (88%) | 2887 | |
| .224 | 55gr | Prvi Partizan SP | 16.0 | 26.5 | 2.26 | 30.0 | 45,281 (82%) | 2831 | |
| .224 | 63gr | Sierra SP SemiSp | 20.0 | ••.• | 2.26 | 28.8 | 42,308 (77%) | 2759 | |
| .224 | 62gr | Hornady FMJ | 14.5 | 25.0 | 2.26 | 28.8 | 49,284 (90%) | 2680 | |
| .257 | 135gr | Berger LRH Target | 24.0 | ••.• | 2.83 | 51.5 | 58,885 (95%) | 2687 | |
| .308 | 125gr | Nosler Ballistic Tip Hunting | 24.0 | ••.• | 2.74 | 56.6 | 57,783 (96%) | 3156 | |
| .308 | 150gr | Barnes TTSX BT | 22.0 | ••.• | 2.73 | 56.0 | 57,058 (95%) | 2805 | |
| .308 | 150gr | Barnes TTSX BT | 22.0 | ••.• | 2.73 | 56.0 | 56,898 (95%) | 2802 | |
| .308 | 150gr | Hornady SST InterLock L1.17 | 24.0 | ••.• | 2.80 | 56.0 | 50,198 (83%) | 2785 | |
| .308 | 150gr | Hornady SP | 22.0 | ••.• | 2.78 | 56.0 | 50,038 (83%) | 2753 | |
| .308 | 145gr | Prvi Partizan FMJ BT | 21.0 | ••.• | 2.80 | 56.0 | 52,083 (87%) | 2746 | |
| .308 | 150gr | Barnes TTSX BT | 22.0 | ••.• | 2.73 | 56.0 | 52,750 (88%) | 2743 | |
| .308 | 168gr | Berger Hybrid Target | 20.0 | ••.• | 2.83 | 56.8 | 59,843 (99%) | 2638 | |
| .308 | 168gr | Berger Hybrid Target | 20.0 | ••.• | 2.83 | 56.8 | 51,648 (86%) | 2566 | |
| .308 | 168gr | Berger Hybrid Target | 20.0 | ••.• | 2.83 | 57.8 | 49,632 (82%) | 2546 | |
| .308 | 180gr | Nosler AccuBond | 22.0 | ••.• | 2.80 | 56.0 | 54,346 (90%) | 2533 | |
| .308 | 178gr | Hornady ELD-X | 22.0 | ••.• | 2.80 | 56.0 | 52,460 (87%) | 2520 |
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