Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 155gr | Berger VLD Hunting bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 56,681 psi | 89% | 3081 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 56,289 psi | 88% | 3133 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 56,478 psi | 89% | 3064 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,114 psi | 85% | 3123 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 57,696 psi | 90% | 3284 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,130 psi | 88% | 3097 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,158 psi | 86% | 3173 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 98% | 56,666 psi | 89% | 3228 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,288 psi | 87% | 3166 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,130 psi | 90% | 3120 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,305 psi | 90% | 3146 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,824 psi | 86% | 3186 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,333 psi | 88% | 3209 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,563 psi | 86% | 3156 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,173 psi | 88% | 3225 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,927 psi | 89% | 3205 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,197 psi | 77% | 3130 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,667 psi | 90% | 3301 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 3202 fps | 98.2% |
| Bofors RP3 | <<locked>> | 82% | 54,665 psi | 86% | 3084 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 56,173 psi | 88% | 3225 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 57,305 psi | 90% | 3127 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,544 psi | 76% | 3064 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 82% | 54,708 psi | 86% | 3100 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 56,231 psi | 88% | 3179 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 86% | 55,463 psi | 87% | 3133 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 96% | 56,608 psi | 89% | 3166 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,506 psi | 87% | 3146 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,274 psi | 87% | 3104 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,240 psi | 76% | 3176 fps | 97.8% |
| Hodgdon Superformance | <<locked>> | 88% | 56,637 psi | 89% | 3215 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 58% | 1988 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,535 psi | 87% | 3077 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,187 psi | 86% | 3107 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,376 psi | 87% | 3100 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 54,665 psi | 86% | 3117 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,418 psi | 85% | 3091 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 98% | 54,099 psi | 85% | 3196 fps | 96.9% |
| Lovex S062 | <<locked>> | 82% | 55,811 psi | 87% | 3071 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,825 psi | 87% | 3097 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 57,188 psi | 90% | 3143 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,111 psi | 79% | 3031 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 56,652 psi | 89% | 3133 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,101 psi | 88% | 3163 fps | 98.1% |
| Norma MRP | <<locked>> | 96% | 55,753 psi | 87% | 3248 fps | 99.4% |
| Norma URP | <<locked>> | 90% | 56,304 psi | 88% | 3163 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,740 psi | 90% | 3159 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,650 psi | 86% | 3215 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 90% | 55,317 psi | 87% | 3166 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,765 psi | 83% | 3146 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 59% | 2034 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,636 psi | 86% | 3084 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,521 psi | 87% | 3196 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,099 psi | 85% | 3146 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,449 psi | 88% | 3238 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,646 psi | 76% | 3173 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 82% | 57,696 psi | 90% | 3084 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,737 psi | 86% | 3081 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,695 psi | 89% | 3143 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 96% | 57,595 psi | 90% | 3205 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 57,305 psi | 90% | 3127 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,825 psi | 87% | 3097 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 55,811 psi | 87% | 3071 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,188 psi | 90% | 3143 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,246 psi | 88% | 3140 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,158 psi | 86% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,230 psi | 87% | 3045 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,130 psi | 90% | 3199 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 54,549 psi | 85% | 3077 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,694 psi | 86% | 3068 fps | 96.2% |
| Somchem S365 | <<locked>> | 92% | 56,289 psi | 88% | 3169 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,563 psi | 86% | 3117 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 86% | 55,985 psi | 88% | 3051 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,636 psi | 86% | 3100 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,954 psi | 85% | 3091 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 56,507 psi | 89% | 3048 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,537 psi | 90% | 3163 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,579 psi | 87% | 3176 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,796 psi | 87% | 3235 fps | 96.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,619 psi | 81% | 3136 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,317 psi | 85% | 3061 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,231 psi | 88% | 3179 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,403 psi | 84% | 3281 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,607 psi | 86% | 3110 fps | 98% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 53,127 psi | 83% | 3018 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 34,838 psi | 55% | 2703 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 53,055 psi | 83% | 3012 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,075 psi | 64% | 2874 fps | 98.8% |
| Accurate High Country | <<locked>> | 90% | 46,673 psi | 73% | 3077 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 49,574 psi | 78% | 2986 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 45,078 psi | 71% | 2979 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 94% | 49,342 psi | 77% | 3091 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 42,511 psi | 67% | 2913 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,444 psi | 79% | 3015 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,708 psi | 84% | 3087 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,566 psi | 62% | 2884 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,440 psi | 71% | 3022 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,061 psi | 66% | 2907 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 90% | 42,786 psi | 67% | 2963 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,254 psi | 46% | 2615 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 88% | 33,228 psi | 52% | 2746 fps | 95.2% |
| Alliant Reloder-26 | 75.5 gr | 80% | 31,589 psi | 50% | 2733 fps | 95.3% |
| Bofors RP15 | <<locked>> | 92% | 42,206 psi | 66% | 2949 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,111 psi | 80% | 3028 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 42,786 psi | 67% | 2963 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,512 psi | 70% | 2887 fps | 96.8% |
| Hodgdon H1000 | <<locked>> | 98% | 45,440 psi | 71% | 2999 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 51,372 psi | 81% | 3041 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 42,989 psi | 67% | 2923 fps | 97% |
| Hodgdon H4350 | <<locked>> | 80% | 45,701 psi | 72% | 2946 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 94% | 52,982 psi | 83% | 3100 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,793 psi | 81% | 3081 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,130 psi | 58% | 2762 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 96% | 42,134 psi | 66% | 3028 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,076 psi | 66% | 2936 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 43% | 1781 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,156 psi | 82% | 3025 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,030 psi | 63% | 2805 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,963 psi | 72% | 2920 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 39,349 psi | 62% | 2822 fps | 98.5% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,995 psi | 80% | 3028 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 94% | 47,253 psi | 74% | 3061 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 52,446 psi | 82% | 3018 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,497 psi | 68% | 2867 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 41,800 psi | 66% | 2848 fps | 96.9% |
| Lovex S071 | <<locked>> | 88% | 34,040 psi | 53% | 2684 fps | 95% |
| Norma 203B | <<locked>> | 80% | 53,069 psi | 83% | 3074 fps | 100% |
| Norma 204 | <<locked>> | 84% | 45,585 psi | 71% | 2963 fps | 95.8% |
| Norma MRP | 78.8 gr | 86% | 39,160 psi | 61% | 2907 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 40,640 psi | 64% | 2864 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 53,882 psi | 84% | 3097 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 47,311 psi | 74% | 3074 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,436 psi | 62% | 2848 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 94% | 42,235 psi | 66% | 2936 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,934 psi | 44% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,198 psi | 80% | 3022 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,240 psi | 76% | 3077 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,973 psi | 64% | 2894 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,465 psi | 62% | 2900 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 39,131 psi | 61% | 2943 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 54,215 psi | 85% | 3031 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,167 psi | 75% | 2969 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,746 psi | 73% | 2956 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 88% | 44,193 psi | 69% | 2953 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,512 psi | 70% | 2887 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,497 psi | 68% | 2867 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 52,446 psi | 82% | 3018 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,800 psi | 66% | 2848 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,298 psi | 77% | 3025 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,776 psi | 76% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,627 psi | 67% | 2808 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 43,801 psi | 69% | 2946 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,138 psi | 75% | 2966 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,271 psi | 80% | 3009 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,173 psi | 58% | 2818 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 39,146 psi | 61% | 2808 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 46,108 psi | 72% | 2890 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,974 psi | 66% | 2864 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 41,350 psi | 65% | 2848 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 53,185 psi | 83% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,539 psi | 65% | 2864 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 32,677 psi | 51% | 2700 fps | 96.9% |
| Vihtavuori N560 | 84.3 gr | 92% | 48,631 psi | 76% | 3100 fps | 95% |
| Vihtavuori N565 | <<locked>> | 98% | 48,167 psi | 75% | 3071 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,162 psi | 65% | 2828 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 42,989 psi | 67% | 2923 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,918 psi | 41% | 2579 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 90% | 44,222 psi | 69% | 2917 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 84 powders for .300 Norma Mag. loaded with the .308 | 155gr | Berger VLD Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 3,301 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,301 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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, Norma MRP, Vihtavuori N560 rank at the top here: for .300 Norma Mag. with the .308 | 155gr | Berger VLD Hunting 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.