Load Specifications
Load data in caliber .307 Win. with .308 | 100gr | Lapua OT Cutting Edge bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, Alliant Reloder-7 and ADI AR 2207.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 92% | 51,837 psi | 86% | 3025 fps | 98.3% |
| Accurate LT-30 | <<locked>> | 98% | 51,880 psi | 86% | 3012 fps | 95.9% |
| Accurate No. 11 FS | <<locked>> | 82% | 53,621 psi | 89% | 3048 fps | 100% |
| ADI AR 2205 | <<locked>> | 86% | 54,462 psi | 90% | 2976 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 52,852 psi | 88% | 3140 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 37,333 psi | 62% | 2900 fps | 96.2% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 46,644 psi | 77% | 3054 fps | 97.6% |
| Alliant Reloder-7 | <<locked>> | 96% | 52,083 psi | 87% | 3084 fps | 98.9% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 53,069 psi | 88% | 3041 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,226 psi | 50% | 1893 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 49,327 psi | 82% | 3058 fps | 98.8% |
| IMR 4227 | <<locked>> | 92% | 53,983 psi | 90% | 3074 fps | 99.9% |
| Lovex D060 | <<locked>> | 84% | 51,358 psi | 85% | 3064 fps | 98.9% |
| Lovex S053 | <<locked>> | 92% | 51,953 psi | 86% | 3028 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 52,939 psi | 88% | 3150 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,892 psi | 50% | 1936 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 53,461 psi | 89% | 3104 fps | 99.8% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 51,358 psi | 85% | 3064 fps | 98.9% |
| Shooters World SOCOM | <<locked>> | 84% | 52,330 psi | 87% | 3031 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 52,678 psi | 88% | 2884 fps | 100% |
| Vihtavuori N110 | <<locked>> | 88% | 54,244 psi | 90% | 2986 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 52,968 psi | 88% | 3094 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 44,860 psi | 75% | 2946 fps | 96.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 39,682 psi | 66% | 2792 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 96% | 48,559 psi | 81% | 2953 fps | 95.1% |
| Accurate No. 11 FS | <<locked>> | 80% | 50,212 psi | 83% | 2995 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 45,208 psi | 75% | 2828 fps | 100% |
| ADI AR 2207 | 32 gr | 80% | 30,066 psi | 50% | 2657 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 98% | 34,896 psi | 58% | 2835 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 94% | 38,479 psi | 64% | 2881 fps | 95.5% |
| Alliant Reloder-7 | 34.8 gr | 84% | 36,158 psi | 60% | 2762 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 46,818 psi | 78% | 2933 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,075 psi | 37% | 1690 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 35,056 psi | 58% | 2743 fps | 95.2% |
| IMR 4227 | <<locked>> | 80% | 37,507 psi | 62% | 2756 fps | 97.7% |
| Lovex D060 | <<locked>> | 80% | 45,600 psi | 76% | 2949 fps | 98% |
| Lovex S053 | <<locked>> | 80% | 36,709 psi | 61% | 2736 fps | 99.6% |
| Norma 200 | <<locked>> | 88% | 36,201 psi | 60% | 2815 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,959 psi | 36% | 1736 fps | 100% |
| ReloadSwiss RS 36 | 33.3 gr | 80% | 36,695 psi | 61% | 2772 fps | 97.3% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 45,600 psi | 76% | 2949 fps | 98% |
| Shooters World SOCOM | <<locked>> | 80% | 45,788 psi | 76% | 2917 fps | 98.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,432 psi | 57% | 2572 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 43,105 psi | 72% | 2812 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 30,298 psi | 50% | 2635 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 96% | 39,798 psi | 66% | 2841 fps | 95.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 23 powders for .307 Win. loaded with the .308 | 100gr | Lapua OT Cutting Edge. Norma 200 delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,150 fps. Alliant AR-Comp gives the best case fill at 100 %, and 23 of the 23 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. Alliant AR-Comp, Alliant Reloder-10x, Baschieri & Pellagri 106 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 36, Alliant Reloder-7, ADI AR 2207 rank at the top here: for .307 Win. with the .308 | 100gr | Lapua OT Cutting Edge they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.