Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 225gr | Hornady ELD-Match bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 53,476 psi | 88% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,476 psi | 89% | 2644 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 52,011 psi | 85% | 2726 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 86% | 51,634 psi | 85% | 2657 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 53,113 psi | 87% | 2723 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,679 psi | 90% | 2749 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 47,311 psi | 78% | 2723 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,110 psi | 81% | 2720 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 52,098 psi | 86% | 2648 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,795 psi | 90% | 2703 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 53,461 psi | 88% | 2720 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,940 psi | 90% | 2680 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 54,476 psi | 89% | 2749 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 51,401 psi | 84% | 2717 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 51,184 psi | 84% | 2779 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,288 psi | 89% | 2690 fps | 98.2% |
| Bofors RP15 | <<locked>> | 92% | 52,721 psi | 87% | 2710 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 54,143 psi | 89% | 2762 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 53,461 psi | 88% | 2720 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 52,489 psi | 86% | 2717 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 52,765 psi | 87% | 2664 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 51,866 psi | 85% | 2648 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 52,243 psi | 86% | 2575 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 53,301 psi | 88% | 2828 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,507 psi | 62% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,636 psi | 90% | 2638 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,882 psi | 90% | 2638 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 53,708 psi | 88% | 2644 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 54,882 psi | 90% | 2759 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,628 psi | 73% | 2638 fps | 99.1% |
| Lovex S065 | <<locked>> | 82% | 54,998 psi | 90% | 2612 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 53,301 psi | 88% | 2615 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,839 psi | 90% | 2648 fps | 100% |
| Norma 204 | <<locked>> | 82% | 51,982 psi | 85% | 2641 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 45,237 psi | 74% | 2664 fps | 100% |
| Norma MRP | <<locked>> | 88% | 53,345 psi | 88% | 2736 fps | 100% |
| Norma URP | <<locked>> | 82% | 52,953 psi | 87% | 2628 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 51,851 psi | 85% | 2726 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 51,851 psi | 85% | 2641 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,143 psi | 89% | 2717 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,392 psi | 63% | 1696 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,636 psi | 90% | 2671 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 52,837 psi | 87% | 2697 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 53,563 psi | 88% | 2822 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 52,707 psi | 87% | 2789 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 86% | 52,620 psi | 86% | 2631 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 88% | 54,491 psi | 89% | 2694 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,998 psi | 90% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 53,301 psi | 88% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 53,998 psi | 89% | 2572 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 54,085 psi | 89% | 2690 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 53,882 psi | 88% | 2625 fps | 99.4% |
| Somchem S365 | <<locked>> | 84% | 53,853 psi | 88% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,882 psi | 90% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 54,447 psi | 89% | 2618 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 54,447 psi | 89% | 2651 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 53,026 psi | 87% | 2667 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 82% | 53,606 psi | 88% | 2625 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 53,563 psi | 88% | 2661 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 53,069 psi | 87% | 2740 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 53,113 psi | 87% | 2726 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 53,751 psi | 88% | 2789 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,737 psi | 90% | 2848 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 53,664 psi | 88% | 2579 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 53,432 psi | 88% | 2766 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,433 psi | 89% | 2661 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 38,363 psi | 63% | 2382 fps | 99.7% |
| Accurate 4350 | <<locked>> | 80% | 50,952 psi | 84% | 2595 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 39,465 psi | 65% | 2497 fps | 96.5% |
| ADI AR 2209 | <<locked>> | 80% | 42,409 psi | 70% | 2503 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 37,826 psi | 62% | 2444 fps | 97.1% |
| ADI AR 2217 | <<locked>> | 84% | 32,213 psi | 53% | 2316 fps | 95.2% |
| ADI AR 2218 | <<locked>> | 98% | 44,077 psi | 72% | 2657 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 80% | 25,759 psi | 42% | 2178 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,878 psi | 80% | 2602 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,366 psi | 70% | 2497 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,290 psi | 63% | 2454 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,014 psi | 61% | 2402 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,068 psi | 53% | 2346 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,060 psi | 67% | 2552 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 41,321 psi | 68% | 2595 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 42,482 psi | 70% | 2480 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 35,650 psi | 59% | 2395 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 31,546 psi | 52% | 2333 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 38,290 psi | 63% | 2454 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 80% | 30,705 psi | 50% | 2277 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 80% | 40,321 psi | 66% | 2444 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,653 psi | 65% | 2431 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,934 psi | 75% | 2484 fps | 100% |
| Hodgdon Retumbo | 64.2 gr | 80% | 31,328 psi | 51% | 2372 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 46% | 1480 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,211 psi | 79% | 2539 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 48,225 psi | 79% | 2543 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,916 psi | 69% | 2441 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 80% | 36,593 psi | 60% | 2428 fps | 96.8% |
| IMR 8133 Enduron | <<locked>> | 90% | 32,126 psi | 53% | 2369 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 51,648 psi | 85% | 2566 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,053 psi | 82% | 2566 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,257 psi | 55% | 2277 fps | 99% |
| Norma 204 | <<locked>> | 80% | 48,501 psi | 80% | 2585 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 26,498 psi | 44% | 2231 fps | 95% |
| Norma MRP | <<locked>> | 80% | 40,292 psi | 66% | 2520 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 49,603 psi | 81% | 2579 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,129 psi | 59% | 2434 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 80% | 48,472 psi | 80% | 2589 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,372 psi | 53% | 2326 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,790 psi | 47% | 1516 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,995 psi | 84% | 2621 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,211 psi | 81% | 2644 fps | 100% |
| ReloadSwiss RS 76 | 68.7 gr | 80% | 30,269 psi | 50% | 2349 fps | 97.6% |
| ReloadSwiss RS 80 | 76.2 gr | 88% | 36,419 psi | 60% | 2484 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 43,526 psi | 71% | 2477 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 41,814 psi | 69% | 2484 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,648 psi | 85% | 2566 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,053 psi | 82% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,676 psi | 83% | 2526 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,466 psi | 68% | 2480 fps | 99% |
| Somchem S361 | <<locked>> | 80% | 44,266 psi | 73% | 2470 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 47,123 psi | 77% | 2539 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,351 psi | 70% | 2464 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 51,039 psi | 84% | 2572 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,825 psi | 60% | 2352 fps | 98.4% |
| Vihtavuori N170 | <<locked>> | 94% | 49,719 psi | 82% | 2615 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 50,343 psi | 83% | 2579 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,510 psi | 68% | 2474 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,263 psi | 66% | 2510 fps | 97.4% |
| Vihtavuori N565 | <<locked>> | 80% | 33,272 psi | 55% | 2346 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 88% | 37,797 psi | 62% | 2500 fps | 95.6% |
| Vihtavuori N570 | <<locked>> | 94% | 44,280 psi | 73% | 2664 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,169 psi | 82% | 2533 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,837 psi | 56% | 2451 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,812 psi | 64% | 2402 fps | 98.4% |
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 66 powders for .300 Lapua Mag. loaded with the .308 | 225gr | Hornady ELD-Match. Vihtavuori N570 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,848 fps. ADI AR 2217 gives the best case fill at 100 %, and 66 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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 Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for .300 Lapua Mag. with the .308 | 225gr | Hornady ELD-Match 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.