Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 203gr | Peregrine Plainsmaster (VLR-4) bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Alliant Reloder-26 and Hodgdon Retumbo.
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>> | 94% | 54,940 psi | 90% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,547 psi | 86% | 2762 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 52,852 psi | 87% | 2887 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 92% | 53,577 psi | 88% | 2890 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 90% | 53,577 psi | 88% | 2828 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 55,100 psi | 90% | 2894 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,182 psi | 81% | 2795 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,700 psi | 72% | 2756 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,780 psi | 88% | 2825 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,867 psi | 88% | 2822 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,737 psi | 90% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,156 psi | 87% | 2815 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,027 psi | 90% | 2887 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,620 psi | 86% | 2799 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 52,011 psi | 85% | 2864 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,649 psi | 86% | 2887 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,403 psi | 88% | 2802 fps | 96.9% |
| Bofors RP15 | <<locked>> | 96% | 53,983 psi | 89% | 2871 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,430 psi | 84% | 2864 fps | 99.4% |
| Bofors RP5 | <<locked>> | 94% | 55,027 psi | 90% | 2887 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 51,837 psi | 85% | 2717 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,433 psi | 89% | 2881 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 54,549 psi | 90% | 2822 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,577 psi | 88% | 2779 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 54,897 psi | 90% | 2828 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,969 psi | 89% | 2815 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 54,027 psi | 89% | 2743 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,389 psi | 89% | 2989 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,940 psi | 90% | 2861 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 61% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,301 psi | 88% | 2756 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,272 psi | 87% | 2740 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 53,229 psi | 87% | 2762 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,518 psi | 86% | 2756 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 52,953 psi | 87% | 2871 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,131 psi | 64% | 2657 fps | 96.8% |
| Lovex S065 | <<locked>> | 84% | 53,708 psi | 88% | 2736 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,040 psi | 85% | 2736 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 52,431 psi | 86% | 2756 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,259 psi | 89% | 2815 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 39,305 psi | 65% | 2684 fps | 98.9% |
| Norma MRP | <<locked>> | 92% | 54,911 psi | 90% | 2907 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,955 psi | 90% | 2802 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,490 psi | 88% | 2887 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 53,780 psi | 88% | 2812 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,706 psi | 85% | 2822 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,782 psi | 62% | 1781 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,605 psi | 86% | 2789 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,795 psi | 90% | 2871 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,085 psi | 90% | 2989 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,777 psi | 82% | 2877 fps | 98.2% |
| Rottweil R 904 | <<locked>> | 90% | 54,853 psi | 90% | 2799 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 52,663 psi | 86% | 2805 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 51,837 psi | 85% | 2717 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,708 psi | 88% | 2736 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,040 psi | 85% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,982 psi | 87% | 2694 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,243 psi | 86% | 2802 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 52,779 psi | 87% | 2740 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 51,590 psi | 85% | 2753 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,997 psi | 87% | 2779 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 53,838 psi | 88% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,084 psi | 87% | 2743 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,765 psi | 87% | 2762 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 52,286 psi | 86% | 2749 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,708 psi | 90% | 2825 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,795 psi | 90% | 2907 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 98% | 54,259 psi | 89% | 2884 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,995 psi | 84% | 2881 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,562 psi | 86% | 2703 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,549 psi | 90% | 2822 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,027 psi | 89% | 2933 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,808 psi | 87% | 2776 fps | 99.7% |
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% | 33,895 psi | 56% | 2415 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 45,788 psi | 75% | 2657 fps | 100% |
| Accurate High Country | 67.2 gr | 80% | 36,985 psi | 61% | 2579 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 84% | 40,306 psi | 66% | 2644 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 38,218 psi | 63% | 2546 fps | 97.2% |
| ADI AR 2213 | <<locked>> | 82% | 36,463 psi | 60% | 2533 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 92% | 37,507 psi | 62% | 2556 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 88% | 29,443 psi | 48% | 2402 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,682 psi | 64% | 2546 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,121 psi | 72% | 2667 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,952 psi | 84% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,319 psi | 63% | 2543 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,040 psi | 56% | 2484 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,764 psi | 54% | 2448 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,355 psi | 47% | 2359 fps | 97.1% |
| Alliant Reloder-26 | 69.2 gr | 80% | 35,795 psi | 59% | 2585 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 47,123 psi | 77% | 2687 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 33,910 psi | 56% | 2480 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 33,866 psi | 56% | 2510 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 34,040 psi | 56% | 2484 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 48,573 psi | 80% | 2664 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 88% | 35,839 psi | 59% | 2523 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 47,703 psi | 78% | 2713 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 50,285 psi | 83% | 2726 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 38,914 psi | 64% | 2539 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 38,247 psi | 63% | 2526 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,539 psi | 68% | 2552 fps | 100% |
| Hodgdon Retumbo | 68 gr | 84% | 31,705 psi | 52% | 2497 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 47,282 psi | 78% | 2740 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 46% | 1555 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,019 psi | 72% | 2602 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,024 psi | 82% | 2687 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 43,685 psi | 72% | 2608 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 38,145 psi | 63% | 2487 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 84% | 37,536 psi | 62% | 2572 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,738 psi | 60% | 2602 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 47,485 psi | 78% | 2638 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,774 psi | 75% | 2631 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 29,080 psi | 48% | 2297 fps | 96.7% |
| Norma 204 | <<locked>> | 80% | 44,106 psi | 72% | 2641 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 29,878 psi | 49% | 2444 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 35,592 psi | 58% | 2549 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 45,092 psi | 74% | 2648 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,144 psi | 61% | 2579 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,918 psi | 72% | 2648 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 30,632 psi | 50% | 2398 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,311 psi | 46% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,890 psi | 75% | 2684 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,164 psi | 73% | 2703 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,719 psi | 50% | 2470 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 39,624 psi | 65% | 2680 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 39,682 psi | 65% | 2526 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 80% | 37,565 psi | 62% | 2526 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 48,573 psi | 80% | 2664 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,485 psi | 78% | 2638 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,774 psi | 75% | 2631 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,369 psi | 76% | 2585 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,246 psi | 61% | 2523 fps | 97.1% |
| Somchem S361 | <<locked>> | 80% | 40,248 psi | 66% | 2513 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 41,959 psi | 69% | 2602 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,043 psi | 62% | 2510 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 50,473 psi | 83% | 2631 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,528 psi | 76% | 2641 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,924 psi | 54% | 2385 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 45,818 psi | 75% | 2644 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,666 psi | 60% | 2516 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 38,522 psi | 63% | 2602 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 88% | 38,508 psi | 63% | 2592 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 94% | 41,205 psi | 68% | 2697 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,614 psi | 75% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,703 psi | 78% | 2713 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,935 psi | 48% | 2467 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,780 psi | 57% | 2438 fps | 96.1% |
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 73 powders for .300 Lapua Mag. loaded with the .308 | 203gr | Peregrine Plainsmaster (VLR-4). Hodgdon Retumbo delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,989 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 203.0 gr projectile in 0.308" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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 High Country, Alliant Reloder-26, Hodgdon Retumbo rank at the top here: for .300 Lapua Mag. with the .308 | 203gr | Peregrine Plainsmaster (VLR-4) 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.