Description
Accurate 1680 is a fast-burning propellant powder specifically engineered for small rifle and magnum pistol cartridges. Esteemed for its consistent performance, 1680 is particularly well-suited for cartridges like the 7.62x39mm, .22 Hornet, and .30 Carbine. The powder exhibits excellent metering characteristics due to its fine granulation, supporting precise load development and uniformity. It stands out for its temperature stability, providing reliable performance across a wide range of environmental conditions, which is essential for maintaining accuracy and velocity consistency. As a relatively fast-burn rate powder with a rating of 3.6, it excels in applications requiring rapid pressure build-up for efficient cartridge ignition and bullet propulsion. For handloaders, Accurate 1680 offers advantages such as ease of use in progressive reloading machinery and compatibility with a variety of bullet weights, facilitating versatile load configurations. Further, the powder's formulation ensures clean-burning properties, minimizing residue and helping maintain firearm cleanliness and functionality over extended shooting sessions.
Specifications
Burn Rate
5.8 (Medium)
Bulk Density
0.960 g/cm³
Density
1.550 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 — Accurate 1680
Verified load data combinations using Accurate 1680.
.17 Rem.
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem.
Hornady .172 | 15.5gr | Hornady NTX 15.5gr
.17 Rem.
Hornady .172 | 17gr | Hornady V-MAX 17gr
.17 Rem.
Hornady .172 | 20gr | Hornady V-MAX 20gr
.17 Rem.
Hornady .172 | 25gr | Hornady V-MAX 25gr
.17 Rem.
Impala Bullets .172 | 20gr | Impala LWHV LS 20gr
.17 Rem.
Impala Bullets .172 | 22gr | Impala LW CFN 22gr
.17 Rem.
Lehigh Defense .172 | 18gr | Lehigh Defense Controlled Chaos 18gr
.17 Rem.
Lehigh Defense .172 | 20gr | Lehigh Defense Controlled Chaos 20gr
.17 Rem.
Nosler .172 | 20gr | Nosler Varmageddon 20gr
.17 Rem.
Nosler .172 | 20gr | Nosler Varmageddon BTip 20gr
.17 Rem.
Peregrine .172 | 21gr | Peregrine VLR-4 21gr
.17 Rem.
Peregrine .172 | 22gr | Peregrine VLR-5 22gr
.17 Rem.
Styria Arms | AERO .172 | 19gr | AERO SOLR-SR,- smax:6.90 19gr
.17 Rem.
Styria Arms | AERO .172 | 19gr | AERO SB-SR,- smax:7.00 19gr
.17 Rem. Fireball
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem. Fireball
Hornady .172 | 15.5gr | Hornady NTX 15.5gr
.17 Rem. Fireball
Hornady .172 | 17gr | Hornady V-MAX 17gr
Subsonic Loads — Accurate 1680
Verified subsonic load data combinations using Accurate 1680.
.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
.300 AAC Blackout
Ferrobull Europe .308 | 180gr | Ferrobull Tripple Expand Jagd 180gr
.300 AAC Blackout
Hornady .308 | 190gr | Hornady Sub-X 190gr
.300 AAC Blackout
Lapua .308 | 200gr | Lapua Subsonic 200gr
Community Loads — Accurate 1680
Sample load data calculated with Accurate 1680.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .224 | 46gr | Winchester Hollow Point | 22.0 | 20.3 | 2.10 | 27.9 | 49,269 (92%) | 3091 | |
| .224 | 55gr | Hornady FMJ BT | 16.0 | 19.8 | 2.10 | 27.9 | 47,282 (88%) | 2749 | |
| .338 | 160gr | Barnes TTSX BT | 16.5 | ••.• | 2.26 | 33.5 | 50,256 (97%) | 2195 | |
| .338 | 160gr | Barnes TTSX BT | 16.5 | 28.0 | 2.26 | 33.5 | 45,426 (87%) | 2126 | |
| .338 | 225gr | Sierra Pro-Hunter | 16.5 | ••.• | 2.26 | 33.5 | 43,076 (83%) | 1693 | |
| .338 | 270gr | Hornady ELD-X | 16.0 | ••.• | 2.26 | 33.5 | 43,120 (83%) | 1289 | |
| .357 | 180gr | Hornady XTP | 24.0 | ••.• | 2.30 | 37.0 | 37,217 (83%) | 2054 | |
| .358 | 200gr | Hornady FTX | 20.0 | ••.• | 2.50 | 44.2 | 42,656 (85%) | 2047 | |
| .375 | 410gr | Berger Long Range Hybrid Target | 26.0 | ••.• | 4.51 | 161.0 | 206,998 (324%) | 3107 | |
| .458 | 325gr | Hornady FTX | 22.0 | ••.• | 2.52 | 79.0 | 27,805 (87%) | 1798 | |
| .308 | 125gr | Speer TNT | 11.0 | ••.• | 2.19 | 35.6 | 45,643 (89%) | 2067 | |
| .308 | 125gr | Speer TNT | 11.0 | ••.• | 2.19 | 35.6 | 45,556 (88%) | 2064 | |
| .310 | 123gr | Hornady SP | 20.0 | ••.• | 2.19 | 35.5 | 44,019 (85%) | 2382 | |
| .31 | 123gr | Prvi Partizan FMJ | 16.0 | ••.• | 2.19 | 35.5 | 50,850 (99%) | 2362 | |
| .310 | 123gr | Hornady SST | 16.0 | ••.• | 2.19 | 35.5 | 48,791 (95%) | 2313 | |
| .31 | 123gr | Prvi Partizan FMJ | 16.0 | ••.• | 2.19 | 35.5 | 45,353 (88%) | 2280 | |
| .31 | 123gr | Prvi Partizan FMJ | 16.0 | ••.• | 2.19 | 35.5 | 44,802 (87%) | 2274 | |
| .31 | 123gr | Prvi Partizan FMJ | 16.0 | ••.• | 2.19 | 35.5 | 40,030 (78%) | 2195 |
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