Load Specifications
Load data in caliber .300 Savage with .308 | 136gr | Geco ZERO bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Alliant Reloder-10x and ADI AR 2219.
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>> | 84% | 46,035 psi | 87% | 2572 fps | 99.8% |
| Accurate 2015 | <<locked>> | 98% | 45,556 psi | 86% | 2648 fps | 99.3% |
| Accurate 2460 | <<locked>> | 96% | 47,224 psi | 89% | 2690 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,056 psi | 68% | 2549 fps | 98.1% |
| Accurate 2520ᴾ | <<locked>> | 100% | 47,065 psi | 89% | 2726 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 90% | 46,949 psi | 89% | 2579 fps | 98.5% |
| Accurate LT-32 | <<locked>> | 90% | 47,442 psi | 90% | 2589 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 88% | 46,311 psi | 87% | 2635 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 47,558 psi | 90% | 2717 fps | 98.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 45,020 psi | 85% | 2723 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 94% | 46,601 psi | 88% | 2680 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 88% | 47,877 psi | 90% | 2638 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 45,194 psi | 85% | 2572 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 94% | 45,672 psi | 86% | 2687 fps | 98.2% |
| Hodgdon H335 | <<locked>> | 94% | 46,528 psi | 88% | 2703 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 86% | 46,093 psi | 87% | 2579 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,676 psi | 60% | 1634 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 42,511 psi | 80% | 2694 fps | 98.4% |
| IMR 4198 | <<locked>> | 92% | 45,876 psi | 87% | 2621 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 46,311 psi | 87% | 2559 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 44,933 psi | 85% | 2654 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 96% | 47,485 psi | 90% | 2690 fps | 96% |
| Lovex S053 | <<locked>> | 84% | 47,805 psi | 90% | 2556 fps | 100% |
| Norma 200 | <<locked>> | 90% | 46,383 psi | 88% | 2661 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 43,323 psi | 82% | 2648 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,241 psi | 59% | 1670 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 45,876 psi | 87% | 2589 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 45,498 psi | 86% | 2657 fps | 96.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 47,442 psi | 90% | 2687 fps | 97.4% |
| Shooters World AR Plus | <<locked>> | 88% | 44,933 psi | 85% | 2654 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 46,383 psi | 88% | 2392 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 44,570 psi | 84% | 2661 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 47,514 psi | 90% | 2684 fps | 99.1% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 47,485 psi | 90% | 2621 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,826 psi | 71% | 2464 fps | 96.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,469 psi | 86% | 2615 fps | 98% |
| Vihtavuori N120 | <<locked>> | 88% | 46,528 psi | 88% | 2592 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 47,398 psi | 90% | 2631 fps | 99.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 46,485 psi | 88% | 2628 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,319 psi | 72% | 2572 fps | 98.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,060 psi | 78% | 2579 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 40,495 psi | 76% | 2474 fps | 99.2% |
| Accurate 2015 | <<locked>> | 84% | 28,979 psi | 55% | 2306 fps | 95.2% |
| Accurate 2460 | <<locked>> | 90% | 38,406 psi | 73% | 2533 fps | 95.1% |
| Accurate 2495 | <<locked>> | 92% | 27,325 psi | 52% | 2343 fps | 95% |
| Accurate 2520 | <<locked>> | 96% | 41,031 psi | 78% | 2621 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 34,606 psi | 65% | 2346 fps | 95.6% |
| Accurate LT-32 | <<locked>> | 86% | 42,119 psi | 80% | 2493 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 35,940 psi | 68% | 2451 fps | 100% |
| ADI AR 2219 | 34.7 gr | 84% | 36,274 psi | 69% | 2500 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 82% | 25,208 psi | 48% | 2264 fps | 96% |
| Alliant Reloder-10x | 30.2 gr | 80% | 29,849 psi | 56% | 2339 fps | 96.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,202 psi | 70% | 2448 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,634 psi | 62% | 2326 fps | 95.2% |
| Hodgdon H322 | 34.3 gr | 86% | 35,085 psi | 66% | 2474 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 88% | 38,101 psi | 72% | 2543 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 38,261 psi | 72% | 2434 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,206 psi | 44% | 1460 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 32,938 psi | 62% | 2484 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 32,184 psi | 61% | 2349 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 43,627 psi | 82% | 2516 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 41,669 psi | 79% | 2598 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 94% | 44,048 psi | 83% | 2635 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 42,612 psi | 80% | 2477 fps | 100% |
| Norma 200 | <<locked>> | 80% | 33,605 psi | 63% | 2418 fps | 98.6% |
| Norma 202 | <<locked>> | 96% | 37,942 psi | 72% | 2546 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,960 psi | 43% | 1493 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,975 psi | 81% | 2543 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 42,612 psi | 80% | 2605 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 94% | 39,465 psi | 75% | 2539 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 86% | 41,669 psi | 79% | 2598 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,349 psi | 74% | 2287 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 38,928 psi | 74% | 2552 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 32,619 psi | 62% | 2392 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 39,131 psi | 74% | 2474 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 35,447 psi | 67% | 2415 fps | 95.5% |
| Somchem S335 | <<locked>> | 92% | 35,563 psi | 67% | 2428 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 36,143 psi | 68% | 2418 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,732 psi | 54% | 2257 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 30,168 psi | 57% | 2303 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 92% | 29,791 psi | 56% | 2379 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 96% | 36,419 psi | 69% | 2487 fps | 95.1% |
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 41 powders for .300 Savage loaded with the .308 | 136gr | Geco ZERO. Accurate 2520 delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,726 fps. Accurate 2495 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 136.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2520, 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. Hodgdon H322, Alliant Reloder-10x, ADI AR 2219 rank at the top here: for .300 Savage with the .308 | 136gr | Geco ZERO 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.