Load Specifications
Load data in caliber .300 Savage with .308 | 140gr | Merlin Virtus bullet and 47 powders. The key underlying parameters are shown in the table above.
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: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 44,686 psi | 84% | 2523 fps | 99.8% |
| Accurate 2015 | <<locked>> | 98% | 47,863 psi | 90% | 2654 fps | 99.8% |
| Accurate 2460 | <<locked>> | 94% | 46,354 psi | 88% | 2651 fps | 97.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,305 psi | 72% | 2562 fps | 98.9% |
| Accurate 2520 | <<locked>> | 98% | 46,485 psi | 88% | 2694 fps | 97.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 35,708 psi | 67% | 2523 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 88% | 45,963 psi | 87% | 2539 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 88% | 46,383 psi | 88% | 2546 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 86% | 45,266 psi | 86% | 2585 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 46,557 psi | 88% | 2677 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,224 psi | 89% | 2730 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 45,832 psi | 87% | 2638 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 86% | 47,007 psi | 89% | 2595 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 46,992 psi | 89% | 2575 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 47,659 psi | 90% | 2621 fps | 96.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 47,514 psi | 90% | 2723 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 94% | 47,761 psi | 90% | 2694 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 92% | 45,571 psi | 86% | 2661 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 86% | 47,688 psi | 90% | 2582 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,821 psi | 60% | 1621 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,933 psi | 85% | 2710 fps | 99.2% |
| IMR 4198 | <<locked>> | 92% | 47,601 psi | 90% | 2621 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 47,152 psi | 89% | 2667 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 94% | 46,514 psi | 88% | 2651 fps | 96.4% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 43,961 psi | 83% | 2661 fps | 96.7% |
| Lovex S053 | <<locked>> | 82% | 46,572 psi | 88% | 2507 fps | 100% |
| Norma 200 | <<locked>> | 88% | 45,672 psi | 86% | 2618 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,730 psi | 86% | 2664 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,734 psi | 60% | 1660 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 47,674 psi | 90% | 2589 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 47,471 psi | 90% | 2667 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 98% | 46,557 psi | 88% | 2648 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 88% | 47,152 psi | 89% | 2667 fps | 97.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 43,961 psi | 83% | 2661 fps | 96.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 47,805 psi | 90% | 2379 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 46,963 psi | 89% | 2677 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 46,688 psi | 88% | 2641 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 46,354 psi | 88% | 2579 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,450 psi | 75% | 2474 fps | 97.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 47,413 psi | 90% | 2621 fps | 98.7% |
| Vihtavuori N120 | <<locked>> | 86% | 45,382 psi | 86% | 2543 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 46,499 psi | 88% | 2589 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 98% | 45,585 psi | 86% | 2585 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,321 psi | 76% | 2582 fps | 99.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,294 psi | 82% | 2595 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 41,582 psi | 79% | 2579 fps | 96.6% |
| Winchester 748 | <<locked>> | 98% | 45,818 psi | 87% | 2694 fps | 96.1% |
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 41,959 psi | 79% | 2477 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 28,456 psi | 54% | 2267 fps | 95.6% |
| Accurate 2460 | <<locked>> | 88% | 37,521 psi | 71% | 2490 fps | 95.4% |
| Accurate 2495 | <<locked>> | 90% | 27,238 psi | 51% | 2313 fps | 95.6% |
| Accurate 2520 | <<locked>> | 94% | 40,364 psi | 76% | 2585 fps | 95.8% |
| Accurate 4064 | <<locked>> | 98% | 33,359 psi | 63% | 2474 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 35,984 psi | 68% | 2352 fps | 96.6% |
| Accurate LT-32 | <<locked>> | 82% | 38,725 psi | 73% | 2405 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 37,666 psi | 71% | 2454 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 32,895 psi | 62% | 2402 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 24,700 psi | 47% | 2228 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,096 psi | 59% | 2346 fps | 97.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,812 psi | 73% | 2451 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,098 psi | 64% | 2336 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 44,875 psi | 85% | 2572 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 98% | 44,179 psi | 83% | 2667 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 82% | 32,387 psi | 61% | 2388 fps | 95% |
| Hodgdon H335 | <<locked>> | 86% | 37,144 psi | 70% | 2500 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 39,769 psi | 75% | 2441 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,453 psi | 44% | 1447 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 30,414 psi | 57% | 2395 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 33,330 psi | 63% | 2352 fps | 99% |
| Lovex D073.4 | <<locked>> | 84% | 41,002 psi | 77% | 2559 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 92% | 43,221 psi | 82% | 2595 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 96% | 38,101 psi | 72% | 2552 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 44,034 psi | 83% | 2467 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,273 psi | 67% | 2425 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 35,317 psi | 67% | 2464 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,235 psi | 44% | 1483 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,715 psi | 84% | 2543 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 41,814 psi | 79% | 2566 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 90% | 36,521 psi | 69% | 2454 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 84% | 41,002 psi | 77% | 2559 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 96% | 38,101 psi | 72% | 2552 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,698 psi | 77% | 2277 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 38,319 psi | 72% | 2516 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,908 psi | 60% | 2349 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 36,303 psi | 69% | 2395 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 32,793 psi | 62% | 2336 fps | 95.1% |
| Somchem S335 | <<locked>> | 88% | 32,895 psi | 62% | 2346 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 37,855 psi | 72% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,110 psi | 57% | 2267 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 82% | 27,891 psi | 53% | 2221 fps | 95% |
| Vihtavuori N135 | <<locked>> | 88% | 27,572 psi | 52% | 2293 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 94% | 35,781 psi | 68% | 2451 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 96% | 36,448 psi | 69% | 2477 fps | 95.1% |
| Winchester 748 | <<locked>> | 96% | 42,670 psi | 81% | 2635 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 47 powders for .300 Savage loaded with the .308 | 140gr | Merlin Virtus. Alliant AR-Comp delivers the highest muzzle velocity at 2,730 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,730 fps. Accurate 2495 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant AR-Comp 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.