Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 125gr | Nosler AccuBond bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 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 2015 | <<locked>> | 82% | 53,592 psi | 88% | 3258 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 52,852 psi | 87% | 3281 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,418 psi | 89% | 3353 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 53,069 psi | 87% | 3333 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,185 psi | 87% | 3412 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 84% | 53,011 psi | 87% | 3360 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 90% | 54,186 psi | 89% | 3363 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 51,895 psi | 85% | 3307 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 82% | 52,591 psi | 86% | 3291 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 52,779 psi | 87% | 3488 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,302 psi | 89% | 3389 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,824 psi | 90% | 3409 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,288 psi | 89% | 3481 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 51,866 psi | 85% | 3455 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,698 psi | 68% | 3225 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,224 psi | 78% | 3412 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 52,837 psi | 87% | 3369 fps | 99.1% |
| Bofors RP3 | <<locked>> | 88% | 51,590 psi | 85% | 3343 fps | 99.9% |
| Bofors RP7 | <<locked>> | 94% | 55,027 psi | 90% | 3363 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 53,490 psi | 88% | 3294 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,100 psi | 90% | 3396 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 52,301 psi | 86% | 3350 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 94% | 52,388 psi | 86% | 3402 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 53,563 psi | 88% | 3376 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,157 psi | 89% | 3396 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,272 psi | 87% | 3409 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 52,939 psi | 87% | 3435 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 58% | 2152 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,824 psi | 90% | 3379 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 53,432 psi | 88% | 3363 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,490 psi | 88% | 3340 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 53,461 psi | 88% | 3314 fps | 96.8% |
| IMR 4350 | <<locked>> | 96% | 52,170 psi | 86% | 3327 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,447 psi | 88% | 3340 fps | 96.7% |
| IMR 4831 | <<locked>> | 98% | 53,780 psi | 88% | 3402 fps | 99.2% |
| IMR 4895 | <<locked>> | 86% | 52,736 psi | 87% | 3386 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 82% | 51,895 psi | 85% | 3307 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 52,794 psi | 87% | 3333 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 52,489 psi | 86% | 3284 fps | 99.6% |
| Lovex S062 | <<locked>> | 88% | 53,563 psi | 88% | 3343 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,171 psi | 87% | 3337 fps | 98% |
| Lovex S070 | <<locked>> | 96% | 54,143 psi | 89% | 3373 fps | 97.2% |
| Norma 201 | <<locked>> | 84% | 51,750 psi | 85% | 3301 fps | 99.9% |
| Norma 202 | <<locked>> | 84% | 52,344 psi | 86% | 3310 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,070 psi | 89% | 3396 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 52,257 psi | 86% | 3399 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 88% | 54,781 psi | 90% | 3422 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 54,766 psi | 90% | 3451 fps | 98% |
| Ramshot TAC | <<locked>> | 82% | 52,112 psi | 86% | 3314 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 82% | 51,880 psi | 85% | 3337 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 59% | 2201 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 52,562 psi | 86% | 3327 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 51,634 psi | 85% | 3419 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 51,488 psi | 85% | 3458 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,055 psi | 87% | 3432 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 52,373 psi | 86% | 3458 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 52,663 psi | 86% | 3291 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 52,315 psi | 86% | 3301 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 92% | 54,998 psi | 90% | 3392 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,027 psi | 90% | 3363 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,171 psi | 87% | 3337 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 84% | 52,794 psi | 87% | 3333 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,563 psi | 88% | 3343 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,143 psi | 89% | 3373 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 53,069 psi | 87% | 3396 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,273 psi | 89% | 3353 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,882 psi | 90% | 3383 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 52,953 psi | 87% | 3241 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,606 psi | 88% | 3238 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,316 psi | 88% | 3278 fps | 96.8% |
| Somchem S335 | <<locked>> | 84% | 52,591 psi | 86% | 3235 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,867 psi | 88% | 3343 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 51,750 psi | 85% | 3330 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,085 psi | 89% | 3465 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 53,272 psi | 87% | 3225 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 51,967 psi | 85% | 3268 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 52,794 psi | 87% | 3281 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,214 psi | 87% | 3310 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,592 psi | 90% | 3396 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 82% | 52,243 psi | 86% | 3307 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,621 psi | 90% | 3330 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,824 psi | 88% | 3399 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,963 psi | 75% | 3314 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 51,300 psi | 84% | 3304 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 52,460 psi | 86% | 3360 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 52,388 psi | 86% | 3402 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,463 psi | 62% | 3219 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,926 psi | 90% | 3392 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 2015 | <<locked>> | 80% | 50,430 psi | 83% | 3205 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,308 psi | 71% | 3114 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,734 psi | 83% | 3287 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 40,944 psi | 67% | 3104 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 37,318 psi | 61% | 3071 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 46,615 psi | 77% | 3235 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,552 psi | 65% | 3054 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,660 psi | 80% | 3248 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 49,255 psi | 81% | 3238 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,743 psi | 70% | 3264 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,305 psi | 65% | 3077 fps | 98.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,293 psi | 69% | 3156 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 36,985 psi | 61% | 3084 fps | 95.3% |
| Alliant Reloder-17 | 67.2 gr | 80% | 34,127 psi | 56% | 3028 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 92% | 32,271 psi | 53% | 2959 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,799 psi | 67% | 3258 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,180 psi | 76% | 3235 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 39,262 psi | 64% | 3084 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 48,559 psi | 80% | 3238 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,227 psi | 82% | 3235 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,022 psi | 79% | 3268 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 40,001 psi | 66% | 3087 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 90% | 45,672 psi | 75% | 3264 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 47,079 psi | 77% | 3248 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,923 psi | 52% | 2897 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,178 psi | 71% | 3209 fps | 99% |
| Hodgdon Superformance | <<locked>> | 92% | 49,110 psi | 81% | 3356 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 43% | 1929 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,136 psi | 74% | 3192 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 46,760 psi | 77% | 3248 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,539 psi | 68% | 3097 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,905 psi | 77% | 3182 fps | 95.2% |
| IMR 4350 | <<locked>> | 94% | 48,950 psi | 80% | 3264 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 47,326 psi | 78% | 3215 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 38,421 psi | 63% | 3077 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 43,337 psi | 71% | 3192 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 80% | 48,660 psi | 80% | 3248 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 46,006 psi | 76% | 3212 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,224 psi | 76% | 3159 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 41,481 psi | 68% | 3100 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 41,321 psi | 68% | 3087 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 47,645 psi | 78% | 3245 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 45,614 psi | 75% | 3182 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 45,919 psi | 75% | 3192 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,655 psi | 68% | 3143 fps | 98% |
| Norma URP | <<locked>> | 86% | 37,289 psi | 61% | 3068 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 41,524 psi | 68% | 3156 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 44,657 psi | 73% | 3248 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 48,791 psi | 80% | 3245 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,486 psi | 80% | 3274 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 44% | 1975 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,122 psi | 76% | 3196 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,860 psi | 74% | 3278 fps | 98.1% |
| ReloadSwiss RS 60 | 67.2 gr | 80% | 36,347 psi | 60% | 3110 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,885 psi | 65% | 3156 fps | 95.9% |
| ReloadSwiss RS 70 | 75.1 gr | 88% | 39,682 psi | 65% | 3163 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 49,588 psi | 81% | 3235 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,410 psi | 71% | 3123 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 36,854 psi | 61% | 3015 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 90% | 48,559 psi | 80% | 3238 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,321 psi | 68% | 3087 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,006 psi | 76% | 3212 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,481 psi | 68% | 3100 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 47,645 psi | 78% | 3245 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,898 psi | 62% | 3071 fps | 96.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,326 psi | 78% | 3219 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,179 psi | 74% | 3196 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,760 psi | 77% | 3130 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,015 psi | 64% | 2969 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,717 psi | 77% | 3150 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 46,528 psi | 76% | 3130 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,007 psi | 77% | 3215 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 37,594 psi | 62% | 3025 fps | 97.3% |
| Somchem S365 | <<locked>> | 82% | 29,240 psi | 48% | 2874 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 47,094 psi | 77% | 3123 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,946 psi | 71% | 3107 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,584 psi | 72% | 3114 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,795 psi | 59% | 2949 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 39,073 psi | 64% | 3074 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,936 psi | 80% | 3245 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 42,119 psi | 69% | 3097 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 38,566 psi | 63% | 3074 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 35,114 psi | 58% | 3054 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,865 psi | 52% | 2851 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 48,907 psi | 80% | 3294 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 45,876 psi | 75% | 3271 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,735 psi | 54% | 3058 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,875 psi | 74% | 3199 fps | 99% |
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 88 powders for .300 Blaser Mag. loaded with the .308 | 125gr | Nosler AccuBond. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,488 fps; across all powders the maximum-charge window runs from 2,152 fps to 3,488 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 Blaser Mag. with the .308 | 125gr | Nosler AccuBond 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.