Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 159gr | IBEX TRD bullet and 71 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 IMR 7828 SSC.
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% | 52,866 psi | 87% | 3068 fps | 99.7% |
| Accurate 4350 | <<locked>> | 86% | 54,389 psi | 89% | 3114 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 54,186 psi | 89% | 3205 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 82% | 55,042 psi | 90% | 3064 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,041 psi | 89% | 3146 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 94% | 51,938 psi | 85% | 3140 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,003 psi | 69% | 2986 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,592 psi | 90% | 3146 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,070 psi | 89% | 3163 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 51,735 psi | 85% | 3123 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,925 psi | 89% | 3140 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 51,895 psi | 85% | 3146 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,910 psi | 87% | 3136 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,141 psi | 86% | 3182 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,794 psi | 87% | 3219 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,317 psi | 89% | 3189 fps | 98.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,283 psi | 79% | 3107 fps | 97% |
| Bofors RP5 | <<locked>> | 94% | 51,895 psi | 85% | 3146 fps | 98.3% |
| Bofors RP7 | <<locked>> | 84% | 53,243 psi | 87% | 3045 fps | 99% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,416 psi | 84% | 3120 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 84% | 51,938 psi | 85% | 3097 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 84% | 54,447 psi | 89% | 3104 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 92% | 52,040 psi | 85% | 3077 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,418 psi | 89% | 3120 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,795 psi | 90% | 3084 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,097 psi | 84% | 3238 fps | 99% |
| Hodgdon Superformance | <<locked>> | 84% | 51,648 psi | 85% | 3123 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,144 psi | 61% | 1975 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,360 psi | 89% | 3084 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,346 psi | 89% | 3068 fps | 99.4% |
| IMR 4831 | <<locked>> | 88% | 54,433 psi | 89% | 3100 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,403 psi | 88% | 3068 fps | 96.8% |
| IMR 7828 SSC | <<locked>> | 96% | 53,243 psi | 87% | 3176 fps | 97.4% |
| Lovex S065 | <<locked>> | 84% | 52,170 psi | 86% | 3022 fps | 99.8% |
| Lovex S070 | <<locked>> | 86% | 53,621 psi | 88% | 3068 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,896 psi | 88% | 3081 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 55,042 psi | 90% | 3136 fps | 98.5% |
| Norma MRP | <<locked>> | 94% | 55,027 psi | 90% | 3232 fps | 99.6% |
| Norma URP | <<locked>> | 86% | 52,489 psi | 86% | 3087 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,795 psi | 88% | 3196 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 88% | 54,505 psi | 89% | 3143 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 98% | 52,214 psi | 86% | 3133 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,884 psi | 62% | 2018 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,679 psi | 90% | 3169 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,911 psi | 89% | 3130 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,114 psi | 90% | 3209 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,706 psi | 85% | 3238 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 82% | 54,708 psi | 90% | 3061 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 52,373 psi | 86% | 3058 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 92% | 53,476 psi | 88% | 3127 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 84% | 53,243 psi | 87% | 3045 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 84% | 52,170 psi | 86% | 3022 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 53,621 psi | 88% | 3068 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,360 psi | 89% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,621 psi | 90% | 3022 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,026 psi | 87% | 3120 fps | 98.4% |
| Somchem S355 | <<locked>> | 82% | 54,433 psi | 89% | 3054 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,795 psi | 88% | 3045 fps | 96.7% |
| Somchem S365 | <<locked>> | 88% | 52,489 psi | 86% | 3097 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,244 psi | 89% | 3104 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 52,025 psi | 85% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,157 psi | 89% | 3081 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 53,316 psi | 88% | 3071 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 86% | 53,432 psi | 88% | 3084 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 52,344 psi | 86% | 3114 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,926 psi | 90% | 3219 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,868 psi | 90% | 3196 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,243 psi | 87% | 3031 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 52,112 psi | 86% | 3100 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,953 psi | 87% | 3271 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,809 psi | 88% | 3091 fps | 98.4% |
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% | 34,142 psi | 56% | 2674 fps | 96% |
| Accurate 4350 | <<locked>> | 80% | 44,846 psi | 74% | 2943 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 92% | 50,633 psi | 83% | 3140 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 51,967 psi | 85% | 3015 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 42,163 psi | 69% | 2907 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 45,803 psi | 75% | 3015 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 94% | 35,186 psi | 58% | 2802 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 39,958 psi | 66% | 2851 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,221 psi | 69% | 2933 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,327 psi | 79% | 3064 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,624 psi | 65% | 2844 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 86% | 40,335 psi | 66% | 2907 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,242 psi | 53% | 2697 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 32,111 psi | 53% | 2710 fps | 95.7% |
| Alliant Reloder-26 | 73 gr | 80% | 34,896 psi | 57% | 2835 fps | 97.8% |
| Bofors RP15 | <<locked>> | 88% | 39,871 psi | 65% | 2890 fps | 95% |
| Bofors RP30 | <<locked>> | 96% | 42,511 psi | 70% | 2986 fps | 95.3% |
| Bofors RP5 | <<locked>> | 86% | 40,335 psi | 66% | 2907 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 47,326 psi | 78% | 2933 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 42,308 psi | 69% | 2927 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 45,701 psi | 75% | 2976 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 48,182 psi | 79% | 2989 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 48,791 psi | 80% | 3018 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,906 psi | 79% | 3002 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,205 psi | 66% | 2822 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 39,929 psi | 66% | 2976 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 44,773 psi | 74% | 2992 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,934 psi | 46% | 1768 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,670 psi | 70% | 2854 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,327 psi | 79% | 2956 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 42,438 psi | 70% | 2877 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 47,471 psi | 78% | 2956 fps | 95.4% |
| IMR 7828 SSC | 78.4 gr | 92% | 46,891 psi | 77% | 3051 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 46,412 psi | 76% | 2913 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 44,744 psi | 73% | 2897 fps | 98.2% |
| Lovex S071 | <<locked>> | 84% | 33,518 psi | 55% | 2661 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 42,467 psi | 70% | 2890 fps | 95.7% |
| Norma MRP | <<locked>> | 82% | 37,043 psi | 61% | 2854 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 43,497 psi | 71% | 2920 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 43,859 psi | 72% | 2995 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 42,308 psi | 69% | 2910 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 39,595 psi | 65% | 2874 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,514 psi | 47% | 1811 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,053 psi | 84% | 3114 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,208 psi | 73% | 2953 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,221 psi | 69% | 2963 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 37,072 psi | 61% | 2890 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 51,459 psi | 84% | 3009 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 46,253 psi | 76% | 2940 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 41,452 psi | 68% | 2887 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 47,326 psi | 78% | 2933 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,412 psi | 76% | 2913 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 44,744 psi | 73% | 2897 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,271 psi | 84% | 2881 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,469 psi | 75% | 2854 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,089 psi | 67% | 2881 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 51,198 psi | 84% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,456 psi | 78% | 2927 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 40,451 psi | 66% | 2881 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,449 psi | 61% | 2759 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 48,907 psi | 80% | 2920 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,918 psi | 74% | 2913 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 39,131 psi | 64% | 2792 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 44,425 psi | 73% | 2917 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 36,100 psi | 59% | 2782 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 90% | 48,254 psi | 79% | 3091 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 94% | 45,281 psi | 74% | 3015 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,685 psi | 72% | 2871 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,861 psi | 75% | 2979 fps | 98.3% |
| Winchester StaBALL HD | 70.1 gr | 80% | 29,008 psi | 48% | 2707 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 41,321 psi | 68% | 2848 fps | 95.6% |
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 | 159gr | IBEX TRD. Winchester StaBALL HD delivers the highest muzzle velocity at 3,271 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,271 fps. ADI AR 2225 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 159.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, 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. Alliant Reloder-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for .300 Lapua Mag. with the .308 | 159gr | IBEX TRD 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.