Load Specifications
Load data in caliber .300 Savage with .308 | 150gr | Lapua Mega bullet and 48 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Hodgdon H322 and Accurate 2520.
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% | 45,020 psi | 85% | 2402 fps | 99.9% |
| Accurate 2015 | <<locked>> | 96% | 45,194 psi | 85% | 2484 fps | 99.6% |
| Accurate 2460 | <<locked>> | 94% | 46,688 psi | 88% | 2530 fps | 97.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,885 psi | 73% | 2451 fps | 99.1% |
| Accurate 2520 | <<locked>> | 98% | 46,456 psi | 88% | 2562 fps | 97.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 36,230 psi | 68% | 2415 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 88% | 46,064 psi | 87% | 2415 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 88% | 46,499 psi | 88% | 2421 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 86% | 45,759 psi | 86% | 2461 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 46,485 psi | 88% | 2546 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,094 psi | 89% | 2595 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 45,963 psi | 87% | 2510 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 47,181 psi | 89% | 2467 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 47,224 psi | 89% | 2454 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 96% | 47,776 psi | 90% | 2497 fps | 96.4% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 47,326 psi | 89% | 2592 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 92% | 44,933 psi | 85% | 2520 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 92% | 45,614 psi | 86% | 2536 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 84% | 45,252 psi | 85% | 2415 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,227 psi | 61% | 1532 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,860 psi | 85% | 2579 fps | 99.3% |
| IMR 4198 | <<locked>> | 92% | 47,834 psi | 90% | 2490 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 47,355 psi | 89% | 2543 fps | 97.4% |
| Lovex D073.5 | <<locked>> | 94% | 46,731 psi | 88% | 2526 fps | 96.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 43,874 psi | 83% | 2536 fps | 96.9% |
| Lovex S053 | <<locked>> | 82% | 47,094 psi | 89% | 2385 fps | 100% |
| Norma 200 | <<locked>> | 88% | 45,992 psi | 87% | 2493 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,905 psi | 87% | 2539 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,937 psi | 60% | 1565 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 47,688 psi | 90% | 2457 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 47,674 psi | 90% | 2539 fps | 97.3% |
| Rottweil R 901 | <<locked>> | 98% | 47,355 psi | 89% | 2526 fps | 98% |
| Shooters World AR Plus | <<locked>> | 88% | 47,355 psi | 89% | 2543 fps | 97.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 43,874 psi | 83% | 2536 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 45,977 psi | 87% | 2231 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 46,847 psi | 88% | 2546 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 47,050 psi | 89% | 2520 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 46,688 psi | 88% | 2457 fps | 97.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,610 psi | 75% | 2356 fps | 97.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 47,601 psi | 90% | 2497 fps | 98.8% |
| Vihtavuori N120 | <<locked>> | 86% | 45,876 psi | 87% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 46,818 psi | 88% | 2467 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 98% | 45,818 psi | 87% | 2464 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,509 psi | 77% | 2464 fps | 99.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,453 psi | 82% | 2477 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 98% | 47,805 psi | 90% | 2533 fps | 95.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 41,829 psi | 79% | 2464 fps | 96.8% |
| Winchester 748 | <<locked>> | 98% | 45,629 psi | 86% | 2562 fps | 96.2% |
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% | 42,134 psi | 80% | 2356 fps | 99.7% |
| Accurate 2015 | <<locked>> | 80% | 27,383 psi | 52% | 2126 fps | 95.3% |
| Accurate 2460 | <<locked>> | 86% | 35,607 psi | 67% | 2329 fps | 95% |
| Accurate 2495 | <<locked>> | 88% | 26,121 psi | 49% | 2172 fps | 95.4% |
| Accurate 2520 | 36.5 gr | 92% | 37,652 psi | 71% | 2411 fps | 95.2% |
| Accurate 4064 | <<locked>> | 98% | 34,084 psi | 64% | 2369 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 36,172 psi | 68% | 2238 fps | 96.8% |
| Accurate LT-32 | <<locked>> | 82% | 38,798 psi | 73% | 2287 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 38,101 psi | 72% | 2339 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,344 psi | 63% | 2293 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 25,208 psi | 48% | 2129 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,676 psi | 60% | 2241 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,204 psi | 74% | 2336 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,229 psi | 65% | 2224 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 92% | 42,366 psi | 80% | 2405 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 98% | 44,222 psi | 84% | 2543 fps | 95.6% |
| Hodgdon H322 | 30.9 gr | 82% | 32,822 psi | 62% | 2280 fps | 95.4% |
| Hodgdon H335 | 33.8 gr | 84% | 35,099 psi | 66% | 2336 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 39,885 psi | 75% | 2320 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,873 psi | 45% | 1371 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 30,864 psi | 58% | 2290 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 33,692 psi | 64% | 2241 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 82% | 38,406 psi | 73% | 2385 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 90% | 40,741 psi | 77% | 2425 fps | 95% |
| Lovex D073.6 | <<locked>> | 96% | 38,464 psi | 73% | 2438 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 44,367 psi | 84% | 2346 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,013 psi | 68% | 2316 fps | 99.5% |
| Norma 202 | <<locked>> | 92% | 35,563 psi | 67% | 2352 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,467 psi | 44% | 1398 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,947 psi | 85% | 2418 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 39,320 psi | 74% | 2395 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 90% | 37,333 psi | 71% | 2346 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 82% | 38,406 psi | 73% | 2385 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 96% | 38,464 psi | 73% | 2438 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,104 psi | 78% | 2162 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 35,998 psi | 68% | 2349 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,401 psi | 61% | 2244 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 36,738 psi | 69% | 2283 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 33,199 psi | 63% | 2231 fps | 95.5% |
| Somchem S335 | <<locked>> | 88% | 33,228 psi | 63% | 2238 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 38,276 psi | 72% | 2303 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,661 psi | 58% | 2169 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 28,311 psi | 53% | 2119 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 88% | 27,978 psi | 53% | 2192 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 92% | 33,866 psi | 64% | 2290 fps | 95% |
| Vihtavuori N530 | <<locked>> | 96% | 44,976 psi | 85% | 2487 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 96% | 36,680 psi | 69% | 2365 fps | 95.3% |
| Winchester 748 | <<locked>> | 96% | 42,670 psi | 81% | 2510 fps | 95.4% |
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 48 powders for .300 Savage loaded with the .308 | 150gr | Lapua Mega. Alliant AR-Comp delivers the highest muzzle velocity at 2,595 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,595 fps. Accurate 2495 gives the best case fill at 100 %, and 48 of the 48 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 150.0 gr projectile in 0.308" calls for a 1:11.5 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. Hodgdon H335, Hodgdon H322, Accurate 2520 rank at the top here: for .300 Savage with the .308 | 150gr | Lapua Mega 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.