Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 200gr | Sierra Hollow Point Boat Tail bullet and 70 powders. The key underlying parameters are shown in the table above.
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>> | 92% | 54,331 psi | 89% | 2805 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 51,721 psi | 85% | 2772 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 51,967 psi | 85% | 2897 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 90% | 52,721 psi | 87% | 2900 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 88% | 52,475 psi | 86% | 2835 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 53,925 psi | 89% | 2897 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,764 psi | 85% | 2861 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,383 psi | 76% | 2828 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,750 psi | 87% | 2831 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,910 psi | 87% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 52,156 psi | 86% | 2825 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,099 psi | 89% | 2894 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 51,996 psi | 85% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,752 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 51,808 psi | 85% | 2894 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,054 psi | 85% | 2802 fps | 96.7% |
| Bofors RP15 | <<locked>> | 94% | 53,316 psi | 88% | 2884 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,418 psi | 89% | 2930 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 54,099 psi | 89% | 2894 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 53,998 psi | 89% | 2776 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 53,447 psi | 88% | 2890 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 53,301 psi | 88% | 2828 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 53,722 psi | 88% | 2835 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,692 psi | 87% | 2818 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,011 psi | 87% | 2753 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,693 psi | 88% | 3002 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,563 psi | 88% | 2864 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,318 psi | 61% | 1768 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 52,185 psi | 86% | 2762 fps | 99.9% |
| IMR 4831 | <<locked>> | 84% | 52,373 psi | 86% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,766 psi | 90% | 2818 fps | 99% |
| IMR 7828 SSC | <<locked>> | 92% | 51,982 psi | 85% | 2877 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,901 psi | 69% | 2736 fps | 97.7% |
| Lovex S065 | <<locked>> | 82% | 52,823 psi | 87% | 2746 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,215 psi | 89% | 2792 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 52,185 psi | 86% | 2772 fps | 100% |
| Norma 204 | <<locked>> | 84% | 52,968 psi | 87% | 2818 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 42,206 psi | 69% | 2762 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 54,012 psi | 89% | 2917 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,766 psi | 88% | 2808 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,446 psi | 86% | 2894 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 52,692 psi | 87% | 2818 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,665 psi | 90% | 2887 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 63% | 1811 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 51,764 psi | 85% | 2799 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,766 psi | 88% | 2881 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,302 psi | 89% | 2999 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,243 psi | 87% | 2956 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 88% | 53,693 psi | 88% | 2805 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 88% | 51,793 psi | 85% | 2815 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 53,998 psi | 89% | 2776 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,823 psi | 87% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,215 psi | 89% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 51,793 psi | 85% | 2700 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,752 psi | 90% | 2864 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 54,984 psi | 90% | 2799 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 54,476 psi | 89% | 2812 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 52,170 psi | 86% | 2789 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 82% | 51,938 psi | 85% | 2749 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 51,880 psi | 85% | 2772 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 54,621 psi | 90% | 2808 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,128 psi | 89% | 2835 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,795 psi | 88% | 2913 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 53,780 psi | 88% | 2897 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,244 psi | 89% | 2956 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,343 psi | 84% | 2949 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,752 psi | 90% | 2756 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,519 psi | 88% | 2828 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 53,534 psi | 88% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 51,808 psi | 85% | 2782 fps | 99.6% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 36,347 psi | 60% | 2487 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 48,486 psi | 80% | 2723 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 39,436 psi | 65% | 2651 fps | 96.6% |
| Accurate MAGPRO | <<locked>> | 82% | 39,755 psi | 65% | 2648 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 40,263 psi | 66% | 2608 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 80% | 35,984 psi | 59% | 2539 fps | 95% |
| ADI AR 2217 | <<locked>> | 90% | 37,202 psi | 61% | 2569 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 29,544 psi | 49% | 2418 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,741 psi | 67% | 2612 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,267 psi | 76% | 2726 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,379 psi | 66% | 2605 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,201 psi | 59% | 2552 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,882 psi | 57% | 2510 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,284 psi | 50% | 2431 fps | 97.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,464 psi | 63% | 2657 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,050 psi | 76% | 2690 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 33,634 psi | 55% | 2487 fps | 95.6% |
| Bofors RP30 | <<locked>> | 86% | 33,982 psi | 56% | 2530 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 36,201 psi | 59% | 2552 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 50,604 psi | 83% | 2720 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 35,534 psi | 58% | 2533 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 49,893 psi | 82% | 2772 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 80% | 38,305 psi | 63% | 2546 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 37,681 psi | 62% | 2533 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,714 psi | 72% | 2608 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 82% | 31,575 psi | 52% | 2510 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 49,690 psi | 82% | 2802 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 46% | 1581 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,064 psi | 76% | 2657 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 45,876 psi | 75% | 2667 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,030 psi | 66% | 2546 fps | 96% |
| IMR 7828 SSC | <<locked>> | 82% | 37,028 psi | 61% | 2579 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 94% | 34,374 psi | 56% | 2559 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 49,545 psi | 81% | 2694 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,892 psi | 79% | 2687 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,401 psi | 52% | 2369 fps | 97.6% |
| Norma 204 | <<locked>> | 80% | 46,180 psi | 76% | 2700 fps | 98.8% |
| Norma 217 | <<locked>> | 90% | 30,269 psi | 50% | 2470 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 37,985 psi | 62% | 2621 fps | 98.5% |
| Norma URP | <<locked>> | 80% | 47,224 psi | 78% | 2707 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,666 psi | 60% | 2585 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 46,079 psi | 76% | 2710 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 30,487 psi | 50% | 2408 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,631 psi | 47% | 1617 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,457 psi | 80% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,470 psi | 76% | 2766 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 30,530 psi | 50% | 2480 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,450 psi | 65% | 2690 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 41,539 psi | 68% | 2585 fps | 97% |
| Rottweil R 905 | <<locked>> | 80% | 39,784 psi | 65% | 2592 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 80% | 50,604 psi | 83% | 2720 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,545 psi | 81% | 2694 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,892 psi | 79% | 2687 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,501 psi | 80% | 2644 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,450 psi | 65% | 2589 fps | 97.7% |
| Somchem S361 | <<locked>> | 80% | 42,250 psi | 69% | 2575 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 44,512 psi | 73% | 2664 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,263 psi | 66% | 2572 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 80% | 48,805 psi | 80% | 2700 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,983 psi | 57% | 2451 fps | 96.9% |
| Vihtavuori N550 | <<locked>> | 80% | 48,037 psi | 79% | 2703 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,218 psi | 64% | 2585 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,072 psi | 63% | 2608 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 86% | 38,334 psi | 63% | 2605 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 92% | 40,843 psi | 67% | 2707 fps | 95.2% |
| Vihtavuori N570 | <<locked>> | 98% | 47,703 psi | 78% | 2881 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,732 psi | 78% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,096 psi | 82% | 2776 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,053 psi | 51% | 2543 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,811 psi | 60% | 2500 fps | 96.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 70 powders for .300 Lapua Mag. loaded with the .308 | 200gr | Sierra Hollow Point Boat Tail. Hodgdon Retumbo delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,002 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 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 1:11.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.