Load Specifications
Load data in caliber .300 Savage with .308 | 153gr | TWENTY-NINE SILENTIO bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 2520, Hodgdon H322 and SNPE Vectan SP 10.
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% | 46,847 psi | 88% | 2415 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 47,239 psi | 89% | 2500 fps | 99.9% |
| Accurate 2460 | <<locked>> | 92% | 45,542 psi | 86% | 2497 fps | 98% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,379 psi | 78% | 2480 fps | 99.6% |
| Accurate 2520 | <<locked>> | 96% | 45,629 psi | 86% | 2539 fps | 97.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,479 psi | 73% | 2444 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 88% | 47,514 psi | 90% | 2428 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 86% | 45,353 psi | 86% | 2392 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 86% | 47,587 psi | 90% | 2470 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 45,266 psi | 86% | 2513 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 96% | 46,441 psi | 88% | 2507 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 98% | 46,311 psi | 87% | 2566 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 47,747 psi | 90% | 2520 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 84% | 46,137 psi | 87% | 2438 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 45,919 psi | 87% | 2425 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 46,862 psi | 89% | 2470 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 98% | 46,340 psi | 88% | 2566 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 92% | 46,804 psi | 88% | 2536 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 90% | 44,512 psi | 84% | 2503 fps | 98% |
| Hodgdon H4198 | <<locked>> | 84% | 46,804 psi | 88% | 2428 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,532 psi | 61% | 1532 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,775 psi | 88% | 2598 fps | 99.7% |
| IMR 4198 | <<locked>> | 90% | 46,731 psi | 88% | 2461 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 46,441 psi | 88% | 2507 fps | 95.9% |
| Lovex D073.4 | <<locked>> | 86% | 46,195 psi | 87% | 2510 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 92% | 45,513 psi | 86% | 2497 fps | 96.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,253 psi | 87% | 2559 fps | 97.8% |
| Norma 200 | <<locked>> | 86% | 45,107 psi | 85% | 2461 fps | 100% |
| Norma 201 | <<locked>> | 98% | 45,005 psi | 85% | 2487 fps | 95.7% |
| Norma 202ᴾ | <<locked>> | 100% | 47,834 psi | 90% | 2559 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,300 psi | 61% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 46,456 psi | 88% | 2510 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 96% | 46,282 psi | 87% | 2497 fps | 98.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,078 psi | 85% | 2480 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 86% | 46,195 psi | 87% | 2510 fps | 97.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,253 psi | 87% | 2559 fps | 97.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 47,355 psi | 89% | 2231 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 45,716 psi | 86% | 2516 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 46,006 psi | 87% | 2487 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 45,788 psi | 86% | 2431 fps | 98.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,249 psi | 78% | 2375 fps | 98.2% |
| Somchem S321 | <<locked>> | 94% | 47,094 psi | 89% | 2543 fps | 96.4% |
| Somchem S335 | <<locked>> | 98% | 46,717 psi | 88% | 2474 fps | 99% |
| Vihtavuori N120 | <<locked>> | 86% | 47,703 psi | 90% | 2431 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 45,672 psi | 86% | 2434 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 47,747 psi | 90% | 2477 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,482 psi | 80% | 2480 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,237 psi | 85% | 2493 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 96% | 46,818 psi | 88% | 2507 fps | 96% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,758 psi | 83% | 2484 fps | 97.7% |
| Winchester 748 | <<locked>> | 98% | 47,659 psi | 90% | 2585 fps | 97.2% |
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% | 43,888 psi | 83% | 2372 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 28,703 psi | 54% | 2149 fps | 96.4% |
| Accurate 2460 | <<locked>> | 84% | 34,911 psi | 66% | 2303 fps | 95.3% |
| Accurate 2495 | <<locked>> | 86% | 25,918 psi | 49% | 2152 fps | 95.7% |
| Accurate 2520 | 36.5 gr | 90% | 36,840 psi | 70% | 2382 fps | 95.4% |
| Accurate 4064 | <<locked>> | 94% | 31,618 psi | 60% | 2300 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 37,550 psi | 71% | 2254 fps | 97.6% |
| Accurate LT-32 | <<locked>> | 80% | 37,869 psi | 72% | 2257 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 39,421 psi | 74% | 2346 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,650 psi | 65% | 2313 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 94% | 43,584 psi | 82% | 2461 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 26,324 psi | 50% | 2156 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,185 psi | 63% | 2260 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,756 psi | 77% | 2349 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,679 psi | 67% | 2244 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,336 psi | 78% | 2375 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 40,611 psi | 77% | 2467 fps | 95.1% |
| Hodgdon H322 | 30.8 gr | 80% | 31,908 psi | 60% | 2247 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 34,084 psi | 64% | 2303 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 41,365 psi | 78% | 2336 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,989 psi | 45% | 1365 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 28,572 psi | 54% | 2218 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 34,809 psi | 66% | 2251 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 94% | 43,584 psi | 82% | 2461 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 37,362 psi | 71% | 2352 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 88% | 39,856 psi | 75% | 2398 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 37,608 psi | 71% | 2411 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 37,318 psi | 70% | 2326 fps | 99.8% |
| Norma 201 | <<locked>> | 96% | 42,453 psi | 80% | 2444 fps | 95% |
| Norma 202 | <<locked>> | 90% | 34,867 psi | 66% | 2326 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,917 psi | 45% | 1398 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 38,508 psi | 73% | 2369 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 86% | 34,693 psi | 66% | 2280 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 98% | 42,583 psi | 80% | 2438 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 37,362 psi | 71% | 2352 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 94% | 37,608 psi | 71% | 2411 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,424 psi | 80% | 2165 fps | 100% |
| SNPE Vectan SP 10 | 32.9 gr | 80% | 34,998 psi | 66% | 2313 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,504 psi | 63% | 2257 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 35,882 psi | 68% | 2257 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,589 psi | 58% | 2162 fps | 95% |
| Somchem S321 | <<locked>> | 92% | 43,801 psi | 83% | 2487 fps | 95.6% |
| Somchem S335 | <<locked>> | 86% | 32,605 psi | 62% | 2211 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 39,581 psi | 75% | 2310 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,734 psi | 60% | 2178 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 27,601 psi | 52% | 2090 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 25,991 psi | 49% | 2126 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 90% | 33,156 psi | 63% | 2264 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 94% | 43,772 psi | 83% | 2457 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 94% | 36,085 psi | 68% | 2343 fps | 95.7% |
| Winchester 748 | <<locked>> | 94% | 41,843 psi | 79% | 2487 fps | 95.7% |
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 51 powders for .300 Savage loaded with the .308 | 153gr | TWENTY-NINE SILENTIO. IMR 3031 delivers the highest muzzle velocity at 2,598 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,598 fps. Accurate 2495 gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 153.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss 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. Accurate 2520, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for .300 Savage with the .308 | 153gr | TWENTY-NINE SILENTIO 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.