Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 130gr | Speer Hot-Cor bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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% | 52,808 psi | 87% | 3228 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,576 psi | 86% | 3219 fps | 96.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,790 psi | 78% | 3225 fps | 97.3% |
| Accurate 4064 | <<locked>> | 86% | 53,243 psi | 87% | 3284 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 53,461 psi | 88% | 3369 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 82% | 52,649 psi | 86% | 3310 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 53,809 psi | 88% | 3310 fps | 99.7% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,998 psi | 90% | 3402 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,853 psi | 90% | 3314 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 52,634 psi | 86% | 3435 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,360 psi | 89% | 3340 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,621 psi | 90% | 3363 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,360 psi | 89% | 3438 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 52,127 psi | 86% | 3409 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,172 psi | 89% | 3389 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,918 psi | 74% | 3255 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,416 psi | 84% | 3461 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 52,649 psi | 86% | 3320 fps | 99.4% |
| Bofors RP3 | <<locked>> | 88% | 54,984 psi | 90% | 3356 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,911 psi | 90% | 3323 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,708 psi | 90% | 3340 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 52,083 psi | 86% | 3304 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 90% | 53,853 psi | 88% | 3386 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 94% | 54,273 psi | 89% | 3350 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 53,229 psi | 87% | 3323 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,592 psi | 90% | 3356 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,229 psi | 87% | 3356 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 52,707 psi | 87% | 3392 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 59% | 2133 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 53,432 psi | 88% | 3307 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 52,098 psi | 86% | 3287 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 52,634 psi | 86% | 3281 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 51,982 psi | 85% | 3248 fps | 97.1% |
| IMR 4350 | <<locked>> | 94% | 52,127 psi | 86% | 3287 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 53,142 psi | 87% | 3294 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,810 psi | 90% | 3376 fps | 99.6% |
| IMR 4895 | <<locked>> | 84% | 52,446 psi | 86% | 3333 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 54,853 psi | 90% | 3314 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 52,808 psi | 87% | 3284 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 51,793 psi | 85% | 3228 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 53,403 psi | 88% | 3291 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 52,968 psi | 87% | 3291 fps | 98.5% |
| Lovex S070 | <<locked>> | 94% | 54,157 psi | 89% | 3330 fps | 97.8% |
| Norma 201 | <<locked>> | 84% | 54,766 psi | 90% | 3307 fps | 100% |
| Norma 202 | <<locked>> | 82% | 52,069 psi | 85% | 3255 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,911 psi | 89% | 3346 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 50,662 psi | 83% | 3402 fps | 97% |
| Norma URP | <<locked>> | 94% | 52,475 psi | 86% | 3356 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 86% | 54,563 psi | 90% | 3369 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 55,027 psi | 90% | 3412 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,955 psi | 90% | 3350 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,289 psi | 60% | 2182 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 52,417 psi | 86% | 3284 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 51,576 psi | 85% | 3369 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 51,517 psi | 85% | 3412 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 53,301 psi | 88% | 3389 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 52,417 psi | 86% | 3419 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 84% | 52,199 psi | 86% | 3255 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,056 psi | 90% | 3350 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,214 psi | 87% | 3369 fps | 96% |
| Rottweil R 907 | <<locked>> | 92% | 54,911 psi | 90% | 3323 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 52,968 psi | 87% | 3291 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 52,808 psi | 87% | 3284 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 53,403 psi | 88% | 3291 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,157 psi | 89% | 3330 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 53,142 psi | 87% | 3353 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 53,766 psi | 88% | 3301 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,592 psi | 90% | 3333 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 52,475 psi | 86% | 3189 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 53,214 psi | 87% | 3186 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 52,866 psi | 87% | 3232 fps | 97.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,721 psi | 87% | 3366 fps | 95.9% |
| Somchem S335 | <<locked>> | 82% | 52,156 psi | 86% | 3182 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,592 psi | 88% | 3294 fps | 99.9% |
| Somchem S355 | <<locked>> | 88% | 51,837 psi | 85% | 3287 fps | 99.9% |
| Somchem S365 | <<locked>> | 98% | 54,752 psi | 90% | 3422 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,969 psi | 89% | 3343 fps | 97.1% |
| Unknown powder | <<locked>> | 92% | 53,258 psi | 87% | 3363 fps | 99% |
| Vihtavuori N133 | <<locked>> | 82% | 52,881 psi | 87% | 3173 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 52,069 psi | 85% | 3219 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 52,620 psi | 86% | 3232 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 53,098 psi | 87% | 3261 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,708 psi | 90% | 3353 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 86% | 54,273 psi | 89% | 3274 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,940 psi | 89% | 3356 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,154 psi | 82% | 3350 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,795 psi | 90% | 3320 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,853 psi | 88% | 3386 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,538 psi | 67% | 3281 fps | 99.8% |
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% | 46,325 psi | 76% | 3120 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,211 psi | 81% | 3156 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 41,553 psi | 68% | 3094 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 43,816 psi | 72% | 3114 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,099 psi | 58% | 2969 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 49,298 psi | 81% | 3245 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 41,945 psi | 69% | 3071 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 98% | 51,561 psi | 85% | 3337 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,372 psi | 84% | 3251 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,701 psi | 75% | 3294 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,061 psi | 69% | 3100 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,904 psi | 74% | 3169 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 82% | 34,693 psi | 57% | 2979 fps | 95.1% |
| Alliant Reloder-17 | 69.5 gr | 80% | 36,622 psi | 60% | 3061 fps | 97.8% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,662 psi | 83% | 3323 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,574 psi | 50% | 2867 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 92% | 38,290 psi | 63% | 3156 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,110 psi | 81% | 3251 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 42,105 psi | 69% | 3107 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 48,312 psi | 79% | 3196 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,198 psi | 84% | 3281 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,670 psi | 70% | 3107 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 84% | 43,714 psi | 72% | 3179 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 92% | 50,995 psi | 84% | 3287 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 49,835 psi | 82% | 3261 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,023 psi | 49% | 2799 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,598 psi | 72% | 3169 fps | 99.4% |
| Hodgdon Superformance | 80.8 gr | 88% | 45,629 psi | 75% | 3245 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 44% | 1913 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,266 psi | 73% | 3130 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 45,788 psi | 75% | 3176 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,118 psi | 68% | 3045 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,977 psi | 75% | 3123 fps | 95.7% |
| IMR 4350 | <<locked>> | 90% | 45,861 psi | 75% | 3163 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,063 psi | 72% | 3107 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 34,940 psi | 57% | 2946 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,064 psi | 76% | 3205 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 51,372 psi | 84% | 3251 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,124 psi | 81% | 3222 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,689 psi | 80% | 3169 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 44,063 psi | 72% | 3114 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 41,205 psi | 68% | 3045 fps | 95.8% |
| Lovex S070 | <<locked>> | 88% | 44,759 psi | 73% | 3143 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 48,298 psi | 79% | 3192 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 48,878 psi | 80% | 3199 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,295 psi | 73% | 3159 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 43,932 psi | 72% | 3258 fps | 95% |
| Norma URP | <<locked>> | 82% | 35,201 psi | 58% | 2969 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 44,483 psi | 73% | 3176 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 41,872 psi | 69% | 3143 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,517 psi | 85% | 3287 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 44% | 1955 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,888 psi | 70% | 3084 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,095 psi | 79% | 3301 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,957 psi | 64% | 3140 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 37,492 psi | 62% | 3051 fps | 95.8% |
| ReloadSwiss RS 70 | 75.8 gr | 86% | 39,552 psi | 65% | 3123 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 46,021 psi | 76% | 3136 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 39,450 psi | 65% | 3038 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 98% | 49,603 psi | 81% | 3304 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 88% | 48,312 psi | 79% | 3196 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 41,205 psi | 68% | 3045 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,124 psi | 81% | 3222 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,063 psi | 72% | 3114 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 44,759 psi | 73% | 3143 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,582 psi | 67% | 3094 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,299 psi | 83% | 3238 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,950 psi | 79% | 3209 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,211 psi | 81% | 3130 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,307 psi | 68% | 2972 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,511 psi | 71% | 3045 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 49,124 psi | 81% | 3294 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 49,095 psi | 81% | 3130 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,980 psi | 82% | 3228 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 40,074 psi | 66% | 3041 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 29,515 psi | 48% | 2844 fps | 96.4% |
| Somchem S385 | <<locked>> | 96% | 47,108 psi | 77% | 3212 fps | 95.4% |
| Unknown powder | <<locked>> | 82% | 38,087 psi | 63% | 3035 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 49,661 psi | 82% | 3120 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,672 psi | 75% | 3110 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,209 psi | 76% | 3117 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,203 psi | 63% | 2966 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 36,622 psi | 60% | 2972 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 44,759 psi | 73% | 3104 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,216 psi | 59% | 2972 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 88% | 33,315 psi | 55% | 2959 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,910 psi | 56% | 2877 fps | 97.1% |
| Winchester 760 | <<locked>> | 84% | 43,714 psi | 72% | 3179 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 92% | 30,995 psi | 51% | 2966 fps | 96.1% |
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 106 powders for .300 Blaser Mag. loaded with the .308 | 130gr | Speer Hot-Cor. Alliant Reloder-26 delivers the highest muzzle velocity at 3,461 fps; across all powders the maximum-charge window runs from 2,133 fps to 3,461 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 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. Accurate 3100, ADI AR 2209, ADI AR 2213 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Blaser Mag. with the .308 | 130gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.