Load Specifications
Load data in caliber .300 Lapua Mag. with .306 | 160gr | AERO SB,- smax:17.9 bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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>> | 98% | 54,360 psi | 89% | 3104 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,563 psi | 90% | 3031 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,330 psi | 86% | 3094 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 51,953 psi | 85% | 3192 fps | 97.4% |
| Accurate MAGPRO | <<locked>> | 96% | 52,982 psi | 87% | 3192 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 54,824 psi | 90% | 3071 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,519 psi | 88% | 3146 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 55,085 psi | 90% | 3205 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,579 psi | 62% | 2884 fps | 96.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,838 psi | 88% | 3143 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,344 psi | 86% | 3041 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,461 psi | 88% | 3159 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,723 psi | 90% | 3179 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,142 psi | 87% | 3133 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,404 psi | 89% | 3199 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,998 psi | 90% | 3176 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,572 psi | 78% | 3110 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,213 psi | 84% | 3202 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,127 psi | 87% | 3176 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 52,997 psi | 87% | 3054 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,404 psi | 89% | 3199 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 52,359 psi | 86% | 3041 fps | 98.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,137 psi | 77% | 3045 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 82% | 53,214 psi | 87% | 3071 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,549 psi | 90% | 3153 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 54,172 psi | 89% | 3110 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 51,503 psi | 85% | 3081 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,027 psi | 89% | 3123 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,664 psi | 88% | 3074 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,514 psi | 76% | 3153 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 88% | 55,085 psi | 90% | 3192 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 60% | 1965 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,259 psi | 89% | 3051 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,838 psi | 88% | 3084 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,114 psi | 89% | 3074 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 53,011 psi | 87% | 3087 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,895 psi | 87% | 3068 fps | 96.8% |
| IMR 7828 SSC | <<locked>> | 98% | 52,431 psi | 86% | 3169 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 54,331 psi | 89% | 3041 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,331 psi | 89% | 3071 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 52,315 psi | 86% | 3058 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,240 psi | 79% | 3002 fps | 99.4% |
| Norma 204 | <<locked>> | 90% | 54,621 psi | 90% | 3140 fps | 98.5% |
| Norma MRP | <<locked>> | 96% | 53,969 psi | 89% | 3222 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 54,911 psi | 90% | 3140 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,026 psi | 87% | 3192 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 90% | 53,766 psi | 88% | 3140 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,111 psi | 84% | 3123 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,144 psi | 61% | 2011 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,200 psi | 87% | 3058 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,085 psi | 89% | 3169 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,518 psi | 86% | 3120 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,795 psi | 90% | 3212 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,789 psi | 77% | 3146 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 84% | 53,055 psi | 87% | 3051 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,071 psi | 90% | 3114 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 52,373 psi | 86% | 3120 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 86% | 52,359 psi | 86% | 3041 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,331 psi | 89% | 3071 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 54,331 psi | 89% | 3041 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,315 psi | 86% | 3058 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,839 psi | 90% | 3114 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,896 psi | 88% | 2930 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,679 psi | 88% | 3015 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,924 psi | 85% | 3114 fps | 98.3% |
| Somchem S355 | <<locked>> | 84% | 52,997 psi | 87% | 3048 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,330 psi | 88% | 3048 fps | 96.7% |
| Somchem S365 | <<locked>> | 92% | 54,636 psi | 90% | 3140 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,779 psi | 87% | 3091 fps | 99% |
| Vihtavuori N150 | <<locked>> | 86% | 54,418 psi | 89% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,272 psi | 87% | 3077 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,446 psi | 86% | 3068 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 88% | 52,373 psi | 86% | 3081 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,737 psi | 88% | 3146 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,143 psi | 89% | 3212 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,690 psi | 82% | 3114 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,953 psi | 87% | 3035 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,766 psi | 90% | 3156 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,227 psi | 84% | 3251 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,924 psi | 87% | 3084 fps | 98.3% |
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>> | 84% | 33,185 psi | 54% | 2674 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 51,053 psi | 84% | 2976 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,392 psi | 65% | 2844 fps | 99% |
| Accurate High Country | 79.6 gr | 90% | 45,049 psi | 74% | 3058 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 94% | 49,240 psi | 81% | 3123 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 48,327 psi | 79% | 2963 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,944 psi | 67% | 2890 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 44,686 psi | 73% | 3002 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 98% | 35,186 psi | 58% | 2815 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 41,147 psi | 68% | 2894 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,979 psi | 80% | 2986 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,232 psi | 63% | 2858 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,859 psi | 72% | 2992 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,727 psi | 67% | 2884 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,162 psi | 68% | 2940 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,920 psi | 46% | 2585 fps | 97.1% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,952 psi | 52% | 2723 fps | 95.7% |
| Alliant Reloder-26 | 72.9 gr | 80% | 30,081 psi | 49% | 2707 fps | 95.6% |
| Bofors RP15 | <<locked>> | 92% | 40,596 psi | 67% | 2923 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 49,342 psi | 81% | 2995 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,162 psi | 68% | 2940 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 43,308 psi | 71% | 2864 fps | 97.2% |
| Hodgdon H1000 | <<locked>> | 98% | 43,961 psi | 72% | 2976 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 49,806 psi | 82% | 3012 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,568 psi | 68% | 2900 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 80% | 44,338 psi | 73% | 2920 fps | 96.8% |
| Hodgdon H4831 | <<locked>> | 92% | 47,863 psi | 79% | 3012 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,920 psi | 77% | 2992 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,839 psi | 59% | 2740 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,640 psi | 67% | 3009 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 40,625 psi | 67% | 2913 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 45% | 1755 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,792 psi | 83% | 2995 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,841 psi | 64% | 2785 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,759 psi | 73% | 2897 fps | 97.9% |
| IMR 4831 | <<locked>> | 80% | 37,898 psi | 62% | 2795 fps | 98.7% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,659 psi | 77% | 2949 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 45,716 psi | 75% | 3038 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 51,097 psi | 84% | 2992 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,061 psi | 69% | 2841 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 40,393 psi | 66% | 2822 fps | 97.2% |
| Lovex S071 | <<locked>> | 88% | 32,213 psi | 53% | 2648 fps | 95.2% |
| Norma 204 | <<locked>> | 82% | 41,336 psi | 68% | 2877 fps | 95.3% |
| Norma MRP | 76.1 gr | 86% | 37,623 psi | 62% | 2887 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 39,233 psi | 64% | 2841 fps | 98.9% |
| Ramshot Grand | <<locked>> | 94% | 45,556 psi | 75% | 3048 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 38,087 psi | 63% | 2828 fps | 97.2% |
| Ramshot Magnum | <<locked>> | 92% | 37,666 psi | 62% | 2841 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,731 psi | 46% | 1801 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,690 psi | 82% | 2995 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,644 psi | 77% | 3048 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,305 psi | 65% | 2864 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,072 psi | 63% | 2877 fps | 98.3% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,478 psi | 62% | 2917 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 46,557 psi | 76% | 2940 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,266 psi | 74% | 2930 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 39,711 psi | 65% | 2864 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 43,308 psi | 71% | 2864 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,061 psi | 69% | 2841 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 51,097 psi | 84% | 2992 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,393 psi | 66% | 2822 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,906 psi | 79% | 2999 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,529 psi | 78% | 2835 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,292 psi | 68% | 2782 fps | 97.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,349 psi | 65% | 2854 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 46,615 psi | 77% | 2936 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,557 psi | 76% | 2920 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 35,650 psi | 59% | 2789 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 37,768 psi | 62% | 2785 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 44,701 psi | 73% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,611 psi | 67% | 2841 fps | 99.1% |
| Vihtavuori N165 | <<locked>> | 88% | 37,289 psi | 61% | 2766 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 40,059 psi | 66% | 2841 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 80% | 31,082 psi | 51% | 2671 fps | 97.2% |
| Vihtavuori N560 | <<locked>> | 92% | 47,065 psi | 77% | 3077 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 98% | 46,195 psi | 76% | 3045 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,871 psi | 65% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,568 psi | 68% | 2900 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,584 psi | 40% | 2549 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,827 psi | 65% | 2828 fps | 95.1% |
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 80 powders for .300 Lapua Mag. loaded with the .306 | 160gr | AERO SB,- smax:17.9. Winchester StaBALL HD delivers the highest muzzle velocity at 3,251 fps; across all powders the maximum-charge window runs from 1,965 fps to 3,251 fps. ADI AR 2225 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.306" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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, Accurate High Country, Norma MRP rank at the top here: for .300 Lapua Mag. with the .306 | 160gr | AERO SB,- smax:17.9 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.