Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 150gr | Remington BronzePoint bullet and 85 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 Alliant Reloder-16.
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 2495 | <<locked>> | 82% | 56,956 psi | 89% | 3045 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,389 psi | 85% | 3054 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,043 psi | 89% | 3163 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 57,479 psi | 90% | 3104 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,955 psi | 86% | 3156 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 57,217 psi | 90% | 3136 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,970 psi | 88% | 3199 fps | 97.7% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,435 psi | 90% | 3255 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,927 psi | 89% | 3264 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,752 psi | 86% | 3104 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,955 psi | 86% | 3127 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,695 psi | 87% | 3219 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,174 psi | 90% | 3241 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,230 psi | 87% | 3182 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 3248 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,476 psi | 84% | 3176 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,427 psi | 73% | 3087 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,693 psi | 84% | 3258 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,706 psi | 81% | 3156 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 55,564 psi | 87% | 3120 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 3248 fps | 98% |
| Bofors RP7 | <<locked>> | 88% | 54,926 psi | 86% | 3104 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 55,898 psi | 88% | 3136 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 57,043 psi | 89% | 3209 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 88% | 56,492 psi | 89% | 3166 fps | 98% |
| Hodgdon H4831 | <<locked>> | 98% | 57,522 psi | 90% | 3192 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,043 psi | 88% | 3136 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,305 psi | 90% | 3176 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 53,635 psi | 84% | 3179 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,535 psi | 57% | 1995 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,566 psi | 90% | 3140 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,782 psi | 89% | 3117 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,622 psi | 87% | 3094 fps | 98.8% |
| IMR 4350 | <<locked>> | 92% | 56,115 psi | 88% | 3136 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,550 psi | 89% | 3130 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 55,376 psi | 87% | 3150 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,391 psi | 88% | 3159 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,288 psi | 87% | 3120 fps | 95.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,708 psi | 86% | 3219 fps | 96.2% |
| Lovex S062 | <<locked>> | 84% | 56,942 psi | 89% | 3110 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,710 psi | 89% | 3127 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 54,795 psi | 86% | 3117 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,239 psi | 74% | 2992 fps | 98.2% |
| Norma 203B | <<locked>> | 82% | 54,259 psi | 85% | 3110 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,159 psi | 90% | 3196 fps | 97.7% |
| Norma MRP | <<locked>> | 98% | 56,318 psi | 88% | 3274 fps | 99% |
| Norma URP | <<locked>> | 92% | 57,276 psi | 90% | 3199 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,926 psi | 86% | 3136 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,506 psi | 87% | 3241 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 92% | 56,130 psi | 88% | 3196 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,617 psi | 78% | 3097 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 58% | 2041 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,869 psi | 88% | 3120 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,565 psi | 89% | 3235 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,969 psi | 86% | 3176 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,348 psi | 90% | 3268 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,716 psi | 72% | 3110 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 55,317 psi | 87% | 3071 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,825 psi | 87% | 3120 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,580 psi | 90% | 3169 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 96% | 54,534 psi | 85% | 3169 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 88% | 54,926 psi | 86% | 3104 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,710 psi | 89% | 3127 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 56,942 psi | 89% | 3110 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,795 psi | 86% | 3117 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,464 psi | 90% | 3182 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,478 psi | 89% | 2999 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,478 psi | 89% | 3077 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,099 psi | 85% | 3163 fps | 97.5% |
| Somchem S355 | <<locked>> | 86% | 55,695 psi | 87% | 3114 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 56,898 psi | 89% | 3202 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,216 psi | 87% | 3143 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 82% | 55,738 psi | 87% | 3028 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,057 psi | 88% | 3045 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,058 psi | 89% | 3087 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,637 psi | 87% | 3133 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 3117 fps | 98% |
| Vihtavuori N540 | <<locked>> | 82% | 54,331 psi | 85% | 3035 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,882 psi | 86% | 3136 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 55,956 psi | 88% | 3202 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,478 psi | 89% | 3261 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,419 psi | 87% | 3097 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,261 psi | 90% | 3212 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,255 psi | 77% | 3238 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,550 psi | 87% | 3140 fps | 97.6% |
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 2495 | <<locked>> | 80% | 53,316 psi | 84% | 2989 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,879 psi | 80% | 2992 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 37,724 psi | 59% | 2789 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 50,517 psi | 79% | 2995 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,798 psi | 61% | 2838 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 47,471 psi | 74% | 2963 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 45,847 psi | 72% | 3005 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 98% | 53,722 psi | 84% | 3186 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,026 psi | 83% | 3199 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,167 psi | 75% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,358 psi | 80% | 3068 fps | 99.9% |
| Alliant Reloder-16 | 66.7 gr | 80% | 37,579 psi | 59% | 2848 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,946 psi | 67% | 2989 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 45,484 psi | 71% | 2995 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 46,166 psi | 72% | 3048 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 29,530 psi | 46% | 2631 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 92% | 35,839 psi | 56% | 2828 fps | 95.5% |
| Alliant Reloder-26 | 77.4 gr | 84% | 34,374 psi | 54% | 2828 fps | 95.7% |
| Bofors RP15 | <<locked>> | 96% | 45,455 psi | 71% | 3035 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 48,733 psi | 76% | 3005 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 46,166 psi | 72% | 3048 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 42,699 psi | 67% | 2861 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 48,936 psi | 77% | 3012 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 40,741 psi | 64% | 2887 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 80% | 43,656 psi | 68% | 2913 fps | 95% |
| Hodgdon H4831 | <<locked>> | 96% | 53,824 psi | 84% | 3130 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,215 psi | 55% | 2733 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,534 psi | 84% | 3117 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 42,844 psi | 67% | 2966 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 43% | 1785 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,056 psi | 85% | 3084 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,937 psi | 78% | 3002 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,214 psi | 82% | 3035 fps | 98.3% |
| IMR 4350 | <<locked>> | 82% | 40,886 psi | 64% | 2838 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,019 psi | 69% | 2890 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 37,289 psi | 58% | 2785 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 52,707 psi | 83% | 3097 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,924 psi | 81% | 3058 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 51,169 psi | 80% | 3150 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 50,328 psi | 79% | 3002 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,524 psi | 65% | 2838 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 39,871 psi | 62% | 2815 fps | 95.5% |
| Lovex S071 | <<locked>> | 92% | 36,347 psi | 57% | 2753 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 50,734 psi | 80% | 3051 fps | 100% |
| Norma 204 | <<locked>> | 86% | 46,528 psi | 73% | 2995 fps | 95.3% |
| Norma MRP | 80.5 gr | 90% | 42,467 psi | 67% | 2999 fps | 96% |
| Norma URP | <<locked>> | 80% | 38,551 psi | 60% | 2831 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 51,372 psi | 81% | 3074 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,547 psi | 81% | 3166 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 37,449 psi | 59% | 2815 fps | 95.3% |
| Ramshot Magnum | <<locked>> | 96% | 42,757 psi | 67% | 2956 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 43% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,950 psi | 77% | 2995 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,600 psi | 71% | 3051 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,624 psi | 61% | 2854 fps | 97.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,434 psi | 59% | 2858 fps | 96.5% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 42,438 psi | 67% | 3031 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 52,127 psi | 82% | 3018 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,847 psi | 72% | 2946 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 50,618 psi | 79% | 3045 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 90% | 44,614 psi | 70% | 2976 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,699 psi | 67% | 2861 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,524 psi | 65% | 2838 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 50,328 psi | 79% | 3002 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,871 psi | 62% | 2815 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,065 psi | 74% | 2999 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,833 psi | 73% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,770 psi | 64% | 2779 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 44,208 psi | 69% | 2969 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 45,934 psi | 72% | 2943 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 35,041 psi | 55% | 2785 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 42,424 psi | 66% | 2894 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 52,373 psi | 82% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,591 psi | 82% | 2992 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,990 psi | 69% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,871 psi | 62% | 2835 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 44,686 psi | 70% | 2933 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 50,836 psi | 80% | 2982 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,392 psi | 62% | 2831 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,661 psi | 48% | 2654 fps | 95.2% |
| Vihtavuori N560 | <<locked>> | 96% | 52,663 psi | 83% | 3192 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,189 psi | 61% | 2802 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 40,857 psi | 64% | 2890 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 28,007 psi | 44% | 2664 fps | 95.9% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,889 psi | 70% | 2943 fps | 95% |
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 85 powders for .300 Weath. Mag. loaded with the .308 | 150gr | Remington BronzePoint. Norma MRP delivers the highest muzzle velocity at 3,274 fps; across all powders the maximum-charge window runs from 1,995 fps to 3,274 fps. Accurate 3100 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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, Alliant Reloder-16 rank at the top here: for .300 Weath. Mag. with the .308 | 150gr | Remington BronzePoint 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.