Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 130gr | Impala LWHV LS bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and ReloadSwiss RS 60.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 53,490 psi | 88% | 3202 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,998 psi | 89% | 3215 fps | 96.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,123 psi | 77% | 3179 fps | 96.6% |
| Accurate 4064 | <<locked>> | 86% | 53,388 psi | 88% | 3251 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 52,663 psi | 86% | 3320 fps | 99% |
| ADI AR 2206H | <<locked>> | 82% | 52,098 psi | 86% | 3261 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 88% | 52,881 psi | 87% | 3258 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,085 psi | 89% | 3264 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,679 psi | 90% | 3438 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,490 psi | 88% | 3291 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,708 psi | 88% | 3307 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 52,953 psi | 87% | 3376 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,041 psi | 89% | 3415 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,005 psi | 72% | 3202 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,690 psi | 82% | 3392 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,911 psi | 90% | 3323 fps | 99.4% |
| Bofors RP3 | <<locked>> | 88% | 54,418 psi | 89% | 3310 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,925 psi | 89% | 3261 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,925 psi | 89% | 3294 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,810 psi | 90% | 3314 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 94% | 54,418 psi | 89% | 3363 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 92% | 54,708 psi | 90% | 3317 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 82% | 52,591 psi | 86% | 3271 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 52,924 psi | 87% | 3297 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 51,967 psi | 85% | 3304 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 94% | 54,940 psi | 90% | 3392 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,056 psi | 59% | 2096 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,345 psi | 88% | 3271 fps | 99.8% |
| IMR 3031 | <<locked>> | 82% | 52,678 psi | 86% | 3264 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,431 psi | 86% | 3238 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 52,025 psi | 85% | 3202 fps | 96.5% |
| IMR 4350 | <<locked>> | 96% | 54,128 psi | 89% | 3284 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 52,214 psi | 86% | 3235 fps | 96.5% |
| IMR 4831 | <<locked>> | 96% | 52,823 psi | 87% | 3307 fps | 99.1% |
| IMR 4895 | <<locked>> | 86% | 55,056 psi | 90% | 3343 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 54,085 psi | 89% | 3264 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 52,344 psi | 86% | 3241 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,476 psi | 89% | 3235 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 52,997 psi | 87% | 3248 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 52,330 psi | 86% | 3238 fps | 97.9% |
| Lovex S070 | <<locked>> | 94% | 53,345 psi | 88% | 3274 fps | 97.1% |
| Norma 201 | <<locked>> | 84% | 54,534 psi | 90% | 3264 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,824 psi | 90% | 3268 fps | 100% |
| Norma 203B | <<locked>> | 86% | 52,997 psi | 87% | 3294 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 54,505 psi | 89% | 3360 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 86% | 53,214 psi | 87% | 3310 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 96% | 53,272 psi | 87% | 3346 fps | 97.8% |
| Ramshot TAC | <<locked>> | 82% | 54,288 psi | 89% | 3271 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,056 psi | 89% | 3297 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 60% | 2146 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,897 psi | 90% | 3287 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,027 psi | 89% | 3379 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,679 psi | 88% | 3415 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 51,866 psi | 85% | 3333 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,462 psi | 89% | 3419 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 84% | 52,011 psi | 85% | 3209 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 90% | 54,476 psi | 89% | 3304 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 53,925 psi | 89% | 3261 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 52,330 psi | 86% | 3238 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 52,344 psi | 86% | 3241 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 52,997 psi | 87% | 3248 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 53,345 psi | 88% | 3274 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 52,040 psi | 85% | 3297 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 53,301 psi | 88% | 3255 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,621 psi | 88% | 3278 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 52,127 psi | 86% | 3143 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 52,402 psi | 86% | 3140 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 52,301 psi | 86% | 3179 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 55,042 psi | 90% | 3192 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,605 psi | 86% | 3241 fps | 99.6% |
| Somchem S355 | <<locked>> | 90% | 54,404 psi | 89% | 3297 fps | 99.9% |
| Somchem S365 | <<locked>> | 98% | 52,736 psi | 87% | 3366 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,620 psi | 86% | 3284 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 82% | 52,330 psi | 86% | 3127 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,868 psi | 90% | 3228 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 51,866 psi | 85% | 3182 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 52,344 psi | 86% | 3215 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,403 psi | 88% | 3294 fps | 99% |
| Vihtavuori N530 | <<locked>> | 82% | 54,607 psi | 90% | 3261 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,679 psi | 88% | 3232 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 52,649 psi | 86% | 3301 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,921 psi | 80% | 3297 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,171 psi | 87% | 3261 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,607 psi | 90% | 3314 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,636 psi | 90% | 3366 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,030 psi | 66% | 3222 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,664 psi | 88% | 3287 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 47,355 psi | 78% | 3097 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,705 psi | 83% | 3153 fps | 95.3% |
| Accurate 3100 | <<locked>> | 98% | 43,976 psi | 72% | 3114 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 44,643 psi | 73% | 3091 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 37,927 psi | 62% | 3009 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 49,110 psi | 81% | 3202 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 41,771 psi | 69% | 3028 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,981 psi | 84% | 3209 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,759 psi | 73% | 3232 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,003 psi | 69% | 3061 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,875 psi | 74% | 3133 fps | 98.3% |
| Alliant Reloder-16 | 62.6 gr | 84% | 36,912 psi | 61% | 3002 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,492 psi | 60% | 3018 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 32,822 psi | 54% | 2904 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 37,971 psi | 62% | 3107 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,240 psi | 79% | 3199 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 42,250 psi | 69% | 3074 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 50,836 psi | 83% | 3202 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,459 psi | 83% | 3235 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,699 psi | 70% | 3068 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 90% | 48,008 psi | 79% | 3235 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 51,576 psi | 85% | 3258 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 49,559 psi | 81% | 3215 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 32,387 psi | 53% | 2835 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,629 psi | 75% | 3179 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 90% | 47,892 psi | 79% | 3251 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 44% | 1877 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,311 psi | 78% | 3156 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 49,414 psi | 81% | 3209 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,888 psi | 72% | 3068 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,253 psi | 76% | 3084 fps | 95.1% |
| IMR 4350 | <<locked>> | 92% | 48,080 psi | 79% | 3169 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 46,485 psi | 76% | 3117 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 36,361 psi | 60% | 2949 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 45,919 psi | 75% | 3166 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 50,981 psi | 84% | 3209 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 49,037 psi | 81% | 3182 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,414 psi | 79% | 3123 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 44,266 psi | 73% | 3077 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 41,408 psi | 68% | 3009 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 47,413 psi | 78% | 3156 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 48,428 psi | 80% | 3153 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 48,602 psi | 80% | 3156 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,280 psi | 73% | 3120 fps | 98.6% |
| Norma URP | <<locked>> | 84% | 37,449 psi | 61% | 2995 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 43,700 psi | 72% | 3127 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 44,179 psi | 73% | 3159 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,821 psi | 83% | 3205 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,546 psi | 83% | 3232 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,398 psi | 45% | 1923 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 45,469 psi | 75% | 3100 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,210 psi | 78% | 3248 fps | 98.6% |
| ReloadSwiss RS 60 | 64.2 gr | 80% | 38,624 psi | 63% | 3097 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 37,304 psi | 61% | 3015 fps | 95.1% |
| ReloadSwiss RS 70 | 71.8 gr | 88% | 41,959 psi | 69% | 3146 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 46,340 psi | 76% | 3100 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 39,914 psi | 66% | 3009 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 50,836 psi | 83% | 3202 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 41,408 psi | 68% | 3009 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,037 psi | 81% | 3182 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,266 psi | 73% | 3077 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 47,413 psi | 78% | 3156 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,176 psi | 66% | 3048 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,806 psi | 82% | 3186 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,340 psi | 78% | 3159 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,037 psi | 81% | 3087 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,278 psi | 68% | 2936 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 46,180 psi | 76% | 3058 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,994 psi | 80% | 3091 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,153 psi | 81% | 3176 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 40,335 psi | 66% | 3012 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 30,023 psi | 49% | 2825 fps | 96.1% |
| Somchem S385 | <<locked>> | 98% | 49,298 psi | 81% | 3219 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 49,211 psi | 81% | 3077 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,672 psi | 75% | 3074 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,021 psi | 76% | 3081 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,392 psi | 63% | 2933 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 82% | 36,608 psi | 60% | 2936 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 51,140 psi | 84% | 3202 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 44,585 psi | 73% | 3068 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 38,595 psi | 63% | 2999 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 35,795 psi | 59% | 2999 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,026 psi | 56% | 2841 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 51,140 psi | 84% | 3255 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 48,124 psi | 79% | 3238 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 92% | 31,328 psi | 51% | 2930 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,210 psi | 78% | 3169 fps | 99.4% |
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 Blaser Mag. loaded with the .308 | 130gr | Impala LWHV LS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,438 fps; across all powders the maximum-charge window runs from 2,096 fps to 3,438 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 (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.308" calls for a 1:11.0 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. Alliant Reloder-16, ReloadSwiss RS 70, ReloadSwiss RS 60 rank at the top here: for .300 Blaser Mag. with the .308 | 130gr | Impala LWHV LS 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.