Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 170gr | Winchester FN Silv.Tip 30-30 bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD 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>> | 92% | 51,517 psi | 85% | 2982 fps | 99.9% |
| Accurate 4350 | <<locked>> | 84% | 52,649 psi | 86% | 3022 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,621 psi | 88% | 3133 fps | 97.5% |
| ADI AR 2209 | <<locked>> | 90% | 53,548 psi | 88% | 3077 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 94% | 54,911 psi | 90% | 3140 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,284 psi | 81% | 3025 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,019 psi | 72% | 2986 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,606 psi | 88% | 3081 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,520 psi | 90% | 3094 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,142 psi | 87% | 3064 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,940 psi | 90% | 3136 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,649 psi | 86% | 3054 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,866 psi | 85% | 3110 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,721 psi | 87% | 3140 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 54,128 psi | 89% | 3120 fps | 99.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,532 psi | 85% | 3104 fps | 98.6% |
| Bofors RP5 | <<locked>> | 94% | 54,940 psi | 90% | 3136 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 55,042 psi | 90% | 3022 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,491 psi | 89% | 3123 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 84% | 54,389 psi | 89% | 3074 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 53,388 psi | 88% | 3028 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 92% | 54,998 psi | 90% | 3077 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,795 psi | 88% | 3058 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,853 psi | 88% | 2999 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,462 psi | 89% | 3245 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 54,694 psi | 90% | 3110 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,130 psi | 61% | 1942 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,243 psi | 87% | 3005 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,214 psi | 87% | 2992 fps | 99.7% |
| IMR 4831 | <<locked>> | 86% | 53,127 psi | 87% | 3015 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,562 psi | 86% | 3002 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 94% | 52,866 psi | 87% | 3114 fps | 98.3% |
| Lovex S065 | <<locked>> | 84% | 53,795 psi | 88% | 2989 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 51,996 psi | 85% | 2982 fps | 99.8% |
| Lovex S071 | <<locked>> | 98% | 52,678 psi | 86% | 3002 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,969 psi | 89% | 3061 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 39,552 psi | 65% | 2904 fps | 97.7% |
| Norma MRP | <<locked>> | 92% | 54,810 psi | 90% | 3156 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 54,824 psi | 90% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,301 psi | 88% | 3133 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 86% | 53,577 psi | 88% | 3061 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,764 psi | 85% | 3064 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,811 psi | 62% | 1985 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,634 psi | 86% | 3041 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,781 psi | 90% | 3130 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 51,329 psi | 84% | 3169 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,096 psi | 82% | 3114 fps | 97% |
| Rottweil R 904 | <<locked>> | 90% | 54,810 psi | 90% | 3048 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 90% | 52,620 psi | 86% | 3054 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 84% | 55,042 psi | 90% | 3022 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,795 psi | 88% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 51,996 psi | 85% | 2982 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,953 psi | 87% | 2940 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,199 psi | 86% | 3048 fps | 99.1% |
| Somchem S361 | <<locked>> | 88% | 52,794 psi | 87% | 2976 fps | 97.6% |
| Somchem S365 | <<locked>> | 86% | 51,634 psi | 85% | 3009 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,171 psi | 87% | 3025 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 53,751 psi | 88% | 2933 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,953 psi | 87% | 2995 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,678 psi | 86% | 3002 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 84% | 52,330 psi | 86% | 3002 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,839 psi | 90% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,665 psi | 90% | 3150 fps | 98.2% |
| Vihtavuori N565 | <<locked>> | 98% | 54,578 psi | 90% | 3130 fps | 98.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,256 psi | 84% | 3120 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,431 psi | 86% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,592 psi | 90% | 3077 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,882 psi | 88% | 3192 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,924 psi | 87% | 3018 fps | 99.1% |
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% | 34,272 psi | 56% | 2631 fps | 97.1% |
| Accurate 4350 | <<locked>> | 80% | 45,890 psi | 75% | 2904 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 46,572 psi | 76% | 2999 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 38,218 psi | 63% | 2762 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 86% | 41,916 psi | 69% | 2881 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 94% | 40,350 psi | 66% | 2835 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 92% | 33,924 psi | 56% | 2730 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,034 psi | 72% | 2910 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,952 psi | 84% | 3035 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,276 psi | 63% | 2759 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,535 psi | 60% | 2756 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,938 psi | 54% | 2664 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,645 psi | 47% | 2559 fps | 95.2% |
| Alliant Reloder-26 | 77.2 gr | 80% | 35,969 psi | 59% | 2805 fps | 98.9% |
| Bofors RP15 | <<locked>> | 86% | 38,899 psi | 64% | 2812 fps | 95.9% |
| Bofors RP30 | <<locked>> | 92% | 39,117 psi | 64% | 2848 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 36,535 psi | 60% | 2756 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,559 psi | 80% | 2907 fps | 99% |
| Hodgdon H1000 | <<locked>> | 90% | 38,580 psi | 63% | 2795 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 47,529 psi | 78% | 2953 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 50,053 psi | 82% | 2969 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 44,802 psi | 74% | 2887 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,961 psi | 72% | 2867 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,481 psi | 68% | 2785 fps | 100% |
| Hodgdon Retumbo | 79.5 gr | 88% | 36,477 psi | 60% | 2838 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 47,094 psi | 77% | 2976 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,746 psi | 46% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,976 psi | 72% | 2831 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,951 psi | 82% | 2933 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 43,743 psi | 72% | 2844 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,439 psi | 71% | 2822 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 40,292 psi | 66% | 2851 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,558 psi | 78% | 2881 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,919 psi | 75% | 2871 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 29,515 psi | 48% | 2500 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 44,092 psi | 72% | 2874 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 34,635 psi | 57% | 2776 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 35,795 psi | 59% | 2766 fps | 96.4% |
| Norma URP | <<locked>> | 80% | 45,107 psi | 74% | 2890 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 39,943 psi | 66% | 2861 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 43,932 psi | 72% | 2884 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 35,650 psi | 59% | 2730 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,413 psi | 47% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,934 psi | 75% | 2923 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,034 psi | 72% | 2940 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,257 psi | 55% | 2736 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,485 psi | 76% | 3041 fps | 96% |
| Rottweil R 904 | <<locked>> | 82% | 42,351 psi | 70% | 2808 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 37,652 psi | 62% | 2746 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 48,559 psi | 80% | 2907 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,558 psi | 78% | 2881 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,919 psi | 75% | 2871 fps | 99.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,528 psi | 76% | 2825 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,318 psi | 61% | 2740 fps | 95.5% |
| Somchem S361 | <<locked>> | 82% | 43,120 psi | 71% | 2792 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 41,989 psi | 69% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,232 psi | 63% | 2730 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,502 psi | 83% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,398 psi | 76% | 2881 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,346 psi | 58% | 2651 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 45,861 psi | 75% | 2887 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,883 psi | 61% | 2743 fps | 99.4% |
| Vihtavuori N560 | <<locked>> | 86% | 44,367 psi | 73% | 2953 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 90% | 41,481 psi | 68% | 2874 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 47,688 psi | 78% | 3051 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,571 psi | 75% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,718 psi | 78% | 2956 fps | 99.3% |
| Winchester StaBALL HD | 74.2 gr | 80% | 29,283 psi | 48% | 2674 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,391 psi | 61% | 2707 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 75 powders for .300 Lapua Mag. loaded with the .308 | 170gr | Winchester FN Silv.Tip 30-30. Hodgdon Retumbo delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,245 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 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 170.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Alliant Reloder-26, Winchester StaBALL HD, Hodgdon Retumbo rank at the top here: for .300 Lapua Mag. with the .308 | 170gr | Winchester FN Silv.Tip 30-30 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.