Description
Winchester Supreme 780 is a versatile propellant with a burn rate categorized as slow, ideal for use in a wide range of rifle calibers. Designed specifically for handloaders seeking consistent performance in their rifle ammunition, Supreme 780 is suited for mid to large-capacity cases. Its spherical granules contribute to superior metering properties, facilitating efficient and accurate powder flow through reloading equipment. This makes it particularly user-friendly for high-volume reloading sessions. Temperature stability is a hallmark of Supreme 780, providing reliable performance across varying environmental conditions. Handloaders commonly pair this powder with popular calibers such as the .270 Winchester, .30-06 Springfield, and 7mm Remington Magnum, among others. When developing loads, users should expect smooth pressure curves and consistent velocities, which enhance downrange accuracy. The slow burn rate aids in optimizing ballistic performance, making it a preferred choice for those loading high-performance hunting or long-range target ammunition. By anchoring its reputation on performance reliability, Supreme 780 embodies Winchester's commitment to quality within the handloading community.
Specifications
Burn Rate
1.4 (Slow)
Bulk Density
0.941 g/cm³
Density
1.530 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 Supreme 780
Verified load data combinations using Winchester Supreme 780.
.22 Creedmoor
Barnes .224 | 77gr | Barnes Match Burner BT 77gr
.22 Creedmoor
Barnes .224 | 78gr | Barnes TSX BT 78gr
.22 Creedmoor
Barnes .224 | 85gr | Barnes Match Burner 85gr
.22 Creedmoor
Berger .224 | 73gr | Berger BT Target 73gr
.22 Creedmoor
Berger .224 | 75gr | Berger VLD Target 75gr
.22 Creedmoor
Berger .224 | 77gr | Berger LTB 77gr
.22 Creedmoor
Berger .224 | 77gr | Berger OTM Tactical 77gr
.22 Creedmoor
Berger .224 | 80gr | Berger VLD Target 80gr
.22 Creedmoor
Berger .224 | 80.5gr | Berger Fullbore Target 80.5gr
.22 Creedmoor
Berger .224 | 82gr | Berger LTB 82gr
.22 Creedmoor
Berger .224 | 85.5gr | Berger Long Range Hybrid Target 85.5gr
.22 Creedmoor
Berger .224 | 90gr | Berger VLD LRBT 90gr
.22 Creedmoor
Berger .224 | 90gr | Berger VLD Target 90gr
.22 Creedmoor
Hornady .224 | 75gr | Hornady ELD Match 75gr
.22 Creedmoor
Hornady .224 | 75gr | Hornady Match 75gr
.22 Creedmoor
Hornady .224 | 80gr | Hornady ELD Match 80gr
.22 Creedmoor
Hornady .224 | 80gr | Hornady ELD-X 80gr
.22 Creedmoor
Hornady .224 | 88gr | Hornady ELD Match 88gr
Subsonic Loads — Winchester Supreme 780
Verified subsonic load data combinations using Winchester Supreme 780.
.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.
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 | 200gr | Reichenberg Subsonic 200gr
.30-06 Spring.
Sierra .308 | 220gr | Sierra MatchKing 220gr
.30-06 Spring.
Styria Arms | AERO .308 | 190gr | AERO SUB,- smax:23.90 190gr
6.5 Creedmoor
Lehigh Defense .264 | 130gr | Lehigh Defense Controlled Chaos 130gr
6.5 Creedmoor
RWS .264 | 159gr | RWS TMR 159gr
7.5 x 55 Swiss
Berger .308 | 210gr | Berger VLD Target 210gr
7.5 x 55 Swiss
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
7.5 x 55 Swiss
Hornady .308 | 175gr | Hornady Sub-X 175gr
7.5 x 55 Swiss
Hornady .308 | 190gr | Hornady Sub-X 190gr
7.5 x 55 Swiss
Lapua .308 | 200gr | Lapua Subsonic 200gr
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