Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 200gr | Speer Hot-Cor bullet and 65 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 Winchester StaBALL HD.
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% | 52,475 psi | 86% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,301 psi | 88% | 2802 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 54,708 psi | 90% | 2936 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 88% | 54,201 psi | 89% | 2867 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 51,938 psi | 85% | 2874 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,751 psi | 88% | 2900 fps | 99.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,240 psi | 79% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,520 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 53,795 psi | 88% | 2858 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 52,301 psi | 86% | 2871 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 53,809 psi | 88% | 2841 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,214 psi | 87% | 2904 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,099 psi | 89% | 2927 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 50,343 psi | 83% | 2917 fps | 96.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,447 psi | 88% | 2835 fps | 97.2% |
| Bofors RP15 | <<locked>> | 92% | 51,764 psi | 85% | 2861 fps | 99.7% |
| Bofors RP30 | <<locked>> | 98% | 53,026 psi | 87% | 2913 fps | 99.6% |
| Bofors RP5 | <<locked>> | 90% | 52,301 psi | 86% | 2871 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 96% | 51,619 psi | 85% | 2867 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 82% | 54,926 psi | 90% | 2858 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 51,808 psi | 85% | 2808 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,259 psi | 89% | 2851 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,752 psi | 90% | 2782 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 52,170 psi | 86% | 2982 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,362 psi | 61% | 1781 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,693 psi | 88% | 2792 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 53,853 psi | 88% | 2795 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 52,924 psi | 87% | 2795 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 92% | 53,882 psi | 88% | 2913 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,656 psi | 72% | 2772 fps | 98.2% |
| Lovex S065 | <<locked>> | 82% | 54,027 psi | 89% | 2769 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 52,446 psi | 86% | 2769 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 53,853 psi | 88% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,447 psi | 89% | 2848 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 44,077 psi | 72% | 2799 fps | 99.7% |
| Norma MRP | <<locked>> | 88% | 52,228 psi | 86% | 2890 fps | 100% |
| Norma URP | <<locked>> | 82% | 51,982 psi | 85% | 2785 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 54,607 psi | 90% | 2936 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 54,201 psi | 89% | 2844 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 52,823 psi | 87% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,319 psi | 63% | 1824 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,388 psi | 88% | 2825 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 51,634 psi | 85% | 2851 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 52,431 psi | 86% | 2972 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 51,605 psi | 85% | 2930 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 88% | 55,114 psi | 90% | 2835 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 88% | 53,359 psi | 88% | 2844 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,027 psi | 89% | 2769 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 52,446 psi | 86% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 53,011 psi | 87% | 2723 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 52,953 psi | 87% | 2841 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 52,982 psi | 87% | 2772 fps | 98.8% |
| Somchem S365 | <<locked>> | 84% | 52,678 psi | 86% | 2792 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 53,795 psi | 88% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 53,374 psi | 88% | 2776 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,432 psi | 88% | 2802 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 52,779 psi | 87% | 2785 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 52,460 psi | 86% | 2815 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 51,953 psi | 85% | 2887 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 94% | 52,054 psi | 85% | 2874 fps | 99.1% |
| Vihtavuori N568 | <<locked>> | 98% | 52,721 psi | 87% | 2933 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 53,374 psi | 88% | 2989 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 52,721 psi | 87% | 2733 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 52,040 psi | 85% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 53,577 psi | 88% | 2815 fps | 99.8% |
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% | 37,492 psi | 62% | 2513 fps | 99.2% |
| Accurate 4350 | <<locked>> | 80% | 49,879 psi | 82% | 2749 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 38,522 psi | 63% | 2625 fps | 95% |
| ADI AR 2209 | <<locked>> | 80% | 41,582 psi | 68% | 2641 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 80% | 37,101 psi | 61% | 2572 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 88% | 35,984 psi | 59% | 2546 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 84% | 28,631 psi | 47% | 2395 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,688 psi | 78% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,495 psi | 68% | 2635 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,449 psi | 61% | 2582 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,100 psi | 59% | 2536 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,372 psi | 52% | 2464 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,045 psi | 66% | 2690 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 46,688 psi | 77% | 2851 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,253 psi | 78% | 2723 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 34,882 psi | 57% | 2520 fps | 96.3% |
| Bofors RP30 | <<locked>> | 86% | 35,288 psi | 58% | 2562 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 37,449 psi | 61% | 2582 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 84% | 34,316 psi | 56% | 2507 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 51,358 psi | 84% | 2802 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,523 psi | 65% | 2579 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,899 psi | 64% | 2566 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,049 psi | 74% | 2635 fps | 100% |
| Hodgdon Retumbo | 69 gr | 80% | 30,560 psi | 50% | 2480 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 46% | 1591 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,340 psi | 78% | 2690 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 47,340 psi | 78% | 2694 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,176 psi | 68% | 2579 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 80% | 35,723 psi | 59% | 2549 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,795 psi | 59% | 2598 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 50,763 psi | 83% | 2720 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,255 psi | 81% | 2720 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,401 psi | 53% | 2395 fps | 98% |
| Norma 204 | <<locked>> | 80% | 47,659 psi | 78% | 2733 fps | 99.1% |
| Norma 217 | <<locked>> | 88% | 29,370 psi | 48% | 2448 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 39,305 psi | 65% | 2651 fps | 98.9% |
| Norma URP | <<locked>> | 80% | 48,747 psi | 80% | 2736 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,331 psi | 58% | 2556 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 47,601 psi | 78% | 2740 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,502 psi | 52% | 2438 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,761 psi | 47% | 1631 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,879 psi | 82% | 2772 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,095 psi | 79% | 2795 fps | 100% |
| ReloadSwiss RS 76 | 73.9 gr | 80% | 29,602 psi | 49% | 2454 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 38,261 psi | 63% | 2667 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 42,801 psi | 70% | 2618 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 40,959 psi | 67% | 2621 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,763 psi | 83% | 2720 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,255 psi | 81% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,763 psi | 82% | 2674 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,611 psi | 67% | 2618 fps | 98.1% |
| Somchem S361 | <<locked>> | 80% | 43,424 psi | 71% | 2605 fps | 97% |
| Somchem S365 | <<locked>> | 80% | 46,079 psi | 76% | 2690 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,524 psi | 68% | 2602 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 50,067 psi | 82% | 2726 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,027 psi | 59% | 2480 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 80% | 49,385 psi | 81% | 2730 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,509 psi | 67% | 2612 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,320 psi | 65% | 2641 fps | 96% |
| Vihtavuori N565 | <<locked>> | 84% | 37,130 psi | 61% | 2579 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 90% | 39,682 psi | 65% | 2684 fps | 95% |
| Vihtavuori N570 | <<locked>> | 96% | 46,267 psi | 76% | 2858 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,327 psi | 81% | 2684 fps | 100% |
| Winchester StaBALL HD | 70.9 gr | 80% | 32,735 psi | 54% | 2579 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,000 psi | 62% | 2530 fps | 97.3% |
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 71 powders for .300 Lapua Mag. loaded with the .308 | 200gr | Speer Hot-Cor. Vihtavuori N570 delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,781 fps to 2,989 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:13.5 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, Winchester StaBALL HD rank at the top here: for .300 Lapua Mag. with the .308 | 200gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-50, IMR 7977 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.