Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 130gr | Barnes X BT bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Hodgdon H414.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 84% | 54,041 psi | 87% | 3156 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,413 psi | 76% | 3123 fps | 96.1% |
| Accurate 4064 | <<locked>> | 86% | 53,911 psi | 86% | 3202 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 52,982 psi | 85% | 3268 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 84% | 55,753 psi | 89% | 3268 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 88% | 53,316 psi | 85% | 3209 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,534 psi | 87% | 3215 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,680 psi | 89% | 3199 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,230 psi | 89% | 3386 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,969 psi | 87% | 3238 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,186 psi | 87% | 3258 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,388 psi | 86% | 3323 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,607 psi | 88% | 3363 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,483 psi | 71% | 3150 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,256 psi | 81% | 3337 fps | 98.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,434 psi | 89% | 3271 fps | 99.2% |
| Bofors RP3 | <<locked>> | 88% | 54,984 psi | 88% | 3261 fps | 99.9% |
| Bofors RP7 | <<locked>> | 92% | 54,418 psi | 87% | 3212 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,825 psi | 90% | 3196 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,462 psi | 87% | 3245 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,347 psi | 89% | 3261 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 94% | 54,969 psi | 88% | 3307 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 84% | 56,347 psi | 90% | 3281 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,461 psi | 86% | 3248 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,014 psi | 90% | 3314 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,477 psi | 89% | 3340 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 58% | 2067 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,824 psi | 86% | 3222 fps | 99.7% |
| IMR 3031 | <<locked>> | 84% | 56,347 psi | 90% | 3268 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,173 psi | 90% | 3248 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,825 psi | 90% | 3215 fps | 96.9% |
| IMR 4350 | <<locked>> | 96% | 54,621 psi | 88% | 3232 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,811 psi | 89% | 3241 fps | 96.8% |
| IMR 4831 | <<locked>> | 96% | 53,287 psi | 85% | 3255 fps | 98.9% |
| IMR 4895 | <<locked>> | 86% | 55,492 psi | 89% | 3291 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 82% | 54,534 psi | 87% | 3215 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,115 psi | 90% | 3245 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,636 psi | 88% | 3182 fps | 99.6% |
| Lovex S062 | <<locked>> | 86% | 53,258 psi | 85% | 3196 fps | 99.9% |
| Lovex S065 | <<locked>> | 94% | 56,014 psi | 90% | 3245 fps | 98.2% |
| Lovex S070 | <<locked>> | 94% | 53,809 psi | 86% | 3222 fps | 96.7% |
| Norma 201 | <<locked>> | 84% | 55,042 psi | 88% | 3215 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,100 psi | 88% | 3212 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,519 psi | 86% | 3241 fps | 99.5% |
| Norma URP | <<locked>> | 96% | 55,027 psi | 88% | 3307 fps | 99% |
| Ramshot Big Game | <<locked>> | 86% | 53,751 psi | 86% | 3261 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 96% | 53,780 psi | 86% | 3294 fps | 97.5% |
| Ramshot TAC | <<locked>> | 82% | 54,723 psi | 88% | 3222 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,563 psi | 87% | 3248 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 59% | 2113 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,361 psi | 89% | 3235 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,505 psi | 87% | 3327 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,244 psi | 87% | 3366 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,072 psi | 90% | 3343 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,013 psi | 88% | 3363 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 82% | 56,202 psi | 90% | 3205 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,593 psi | 89% | 3219 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,781 psi | 88% | 3248 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 54,418 psi | 87% | 3212 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,014 psi | 90% | 3245 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,115 psi | 90% | 3245 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 53,258 psi | 85% | 3196 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 94% | 53,809 psi | 86% | 3222 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,796 psi | 89% | 3304 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 53,563 psi | 86% | 3199 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,114 psi | 87% | 3228 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,651 psi | 89% | 3150 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,970 psi | 90% | 3140 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,014 psi | 90% | 3186 fps | 96.9% |
| Somchem S335 | <<locked>> | 84% | 55,434 psi | 89% | 3143 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,837 psi | 85% | 3189 fps | 99.4% |
| Somchem S355 | <<locked>> | 90% | 54,882 psi | 88% | 3245 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 53,359 psi | 86% | 3314 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,825 psi | 90% | 3133 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,056 psi | 88% | 3179 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,564 psi | 89% | 3189 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,970 psi | 90% | 3219 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,722 psi | 86% | 3241 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 82% | 54,824 psi | 88% | 3209 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,085 psi | 87% | 3182 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,185 psi | 85% | 3248 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,269 psi | 79% | 3238 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,679 psi | 86% | 3212 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 55,100 psi | 88% | 3264 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,201 psi | 89% | 3314 fps | 96.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,350 psi | 65% | 3163 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,143 psi | 87% | 3238 fps | 99.8% |
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% | 47,761 psi | 77% | 3051 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 44,512 psi | 71% | 3061 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 45,063 psi | 72% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 38,363 psi | 62% | 2956 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 49,313 psi | 79% | 3150 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 41,989 psi | 67% | 2972 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,155 psi | 82% | 3153 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 52,214 psi | 84% | 3146 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,223 psi | 73% | 3179 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,235 psi | 68% | 3009 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,121 psi | 72% | 3077 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 39,523 psi | 63% | 3012 fps | 95.8% |
| Alliant Reloder-17 | 64.3 gr | 80% | 36,840 psi | 59% | 2966 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 92% | 35,114 psi | 56% | 2910 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 41,031 psi | 66% | 3120 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,675 psi | 78% | 3150 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 42,685 psi | 68% | 3022 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 51,271 psi | 82% | 3153 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,663 psi | 84% | 3140 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,865 psi | 82% | 3182 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 43,134 psi | 69% | 3018 fps | 96.2% |
| Hodgdon H414 | 70.8 gr | 90% | 48,428 psi | 78% | 3182 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,806 psi | 80% | 3159 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 32,692 psi | 52% | 2782 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,108 psi | 74% | 3130 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 51,793 psi | 83% | 3268 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,108 psi | 43% | 1854 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,471 psi | 76% | 3100 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 49,922 psi | 80% | 3163 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,106 psi | 71% | 3015 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,443 psi | 79% | 3094 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 51,474 psi | 83% | 3176 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,472 psi | 79% | 3120 fps | 95.3% |
| IMR 4831 | <<locked>> | 86% | 39,102 psi | 63% | 2959 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 46,166 psi | 74% | 3114 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 51,155 psi | 82% | 3153 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 49,458 psi | 79% | 3133 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,791 psi | 78% | 3074 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 44,672 psi | 72% | 3028 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 44,309 psi | 71% | 3015 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 47,659 psi | 76% | 3104 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 48,863 psi | 78% | 3104 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 48,849 psi | 78% | 3104 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,527 psi | 71% | 3064 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 40,263 psi | 65% | 3005 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 44,092 psi | 71% | 3074 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 44,353 psi | 71% | 3100 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 51,271 psi | 82% | 3156 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,024 psi | 82% | 3182 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 44% | 1900 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 45,876 psi | 74% | 3051 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,703 psi | 76% | 3196 fps | 98.3% |
| ReloadSwiss RS 60 | 64.3 gr | 80% | 39,001 psi | 63% | 3041 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 40,219 psi | 64% | 3025 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 42,192 psi | 68% | 3087 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 53,258 psi | 85% | 3156 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,557 psi | 75% | 3048 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 40,292 psi | 65% | 2959 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 51,271 psi | 82% | 3153 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 44,309 psi | 71% | 3015 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,458 psi | 79% | 3133 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,672 psi | 72% | 3028 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 47,659 psi | 76% | 3104 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,567 psi | 65% | 2999 fps | 97.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,241 psi | 81% | 3136 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,747 psi | 77% | 3110 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,400 psi | 79% | 3045 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,611 psi | 67% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,414 psi | 79% | 3068 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 49,400 psi | 79% | 3045 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,632 psi | 80% | 3130 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 40,683 psi | 65% | 2959 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 30,356 psi | 49% | 2772 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 49,632 psi | 80% | 3035 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,093 psi | 74% | 3028 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,398 psi | 74% | 3031 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,769 psi | 62% | 2887 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 39,305 psi | 63% | 2946 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 51,590 psi | 83% | 3153 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 44,991 psi | 72% | 3018 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 38,986 psi | 63% | 2946 fps | 95% |
| Vihtavuori N555 | <<locked>> | 90% | 36,042 psi | 58% | 2940 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,330 psi | 55% | 2792 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 51,663 psi | 83% | 3205 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 48,646 psi | 78% | 3186 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 33,562 psi | 54% | 2943 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,630 psi | 76% | 3120 fps | 99.2% |
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 87 powders for .300 Win. Mag. loaded with the .308 | 130gr | Barnes X BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,386 fps; across all powders the maximum-charge window runs from 2,067 fps to 3,386 fps. Accurate 3100 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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. ReloadSwiss RS 60, Alliant Reloder-17, Hodgdon H414 rank at the top here: for .300 Win. Mag. with the .308 | 130gr | Barnes X BT 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.