Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 115gr | Lehigh Defense Controlled Chaos bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, 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.
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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>> | 84% | 54,157 psi | 89% | 3389 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,968 psi | 87% | 3406 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,839 psi | 90% | 3478 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 53,113 psi | 87% | 3455 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 52,953 psi | 87% | 3520 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 86% | 53,417 psi | 88% | 3484 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 54,665 psi | 90% | 3481 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,373 psi | 86% | 3432 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 52,866 psi | 87% | 3422 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,127 psi | 87% | 3602 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,491 psi | 89% | 3507 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,056 psi | 90% | 3530 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,418 psi | 89% | 3593 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,011 psi | 85% | 3570 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,885 psi | 64% | 3245 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,490 psi | 88% | 3491 fps | 98.6% |
| Bofors RP3 | <<locked>> | 90% | 51,692 psi | 85% | 3458 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,172 psi | 89% | 3422 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,837 psi | 85% | 3455 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,664 psi | 88% | 3566 fps | 99% |
| Hodgdon H380 | <<locked>> | 90% | 52,736 psi | 87% | 3468 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 86% | 53,954 psi | 89% | 3497 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,444 psi | 83% | 3442 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,592 psi | 88% | 3530 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 58% | 2234 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,822 psi | 85% | 3438 fps | 99.4% |
| IMR 3031 | <<locked>> | 86% | 53,679 psi | 88% | 3491 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,983 psi | 89% | 3461 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,099 psi | 89% | 3428 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,896 psi | 88% | 3451 fps | 95.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,664 psi | 88% | 3507 fps | 98.6% |
| IMR 4895 | <<locked>> | 88% | 52,939 psi | 87% | 3504 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 84% | 52,373 psi | 86% | 3432 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 53,142 psi | 87% | 3455 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,171 psi | 87% | 3409 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 53,911 psi | 89% | 3461 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 53,403 psi | 88% | 3445 fps | 97.3% |
| Lovex S070 | <<locked>> | 98% | 54,331 psi | 89% | 3478 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 52,170 psi | 86% | 3422 fps | 99.7% |
| Norma 202 | <<locked>> | 86% | 52,707 psi | 87% | 3435 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,302 psi | 89% | 3514 fps | 99.4% |
| Norma URP | <<locked>> | 98% | 52,185 psi | 86% | 3507 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 90% | 55,085 psi | 90% | 3537 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,897 psi | 90% | 3560 fps | 97.3% |
| Ramshot TAC | <<locked>> | 84% | 52,924 psi | 87% | 3435 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,359 psi | 86% | 3461 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,490 psi | 88% | 3425 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,534 psi | 58% | 2283 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,055 psi | 87% | 3438 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,851 psi | 85% | 3540 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 51,677 psi | 85% | 3576 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,895 psi | 87% | 3537 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 52,895 psi | 87% | 3566 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 84% | 53,185 psi | 87% | 3419 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,765 psi | 87% | 3422 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 55,071 psi | 90% | 3510 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,403 psi | 88% | 3445 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 53,142 psi | 87% | 3455 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 53,911 psi | 89% | 3461 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 54,331 psi | 89% | 3478 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,359 psi | 88% | 3514 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,839 psi | 90% | 3471 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,054 psi | 85% | 3445 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,708 psi | 88% | 3369 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 53,969 psi | 89% | 3360 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,766 psi | 88% | 3386 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 53,679 psi | 88% | 3465 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 53,127 psi | 87% | 3360 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,592 psi | 90% | 3465 fps | 99.4% |
| Somchem S355 | <<locked>> | 92% | 51,967 psi | 85% | 3448 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,053 psi | 82% | 3510 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 53,417 psi | 88% | 3337 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,911 psi | 89% | 3356 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 52,286 psi | 86% | 3396 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,417 psi | 88% | 3409 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,432 psi | 88% | 3425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,621 psi | 90% | 3504 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 84% | 52,982 psi | 87% | 3432 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 88% | 51,779 psi | 85% | 3396 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,041 psi | 89% | 3510 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,496 psi | 70% | 3343 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 51,866 psi | 85% | 3419 fps | 99.6% |
| Winchester 748 | <<locked>> | 84% | 52,881 psi | 87% | 3484 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 51,895 psi | 85% | 3451 fps | 99.4% |
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% | 47,645 psi | 78% | 3278 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,466 psi | 66% | 3169 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,616 psi | 78% | 3346 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 38,218 psi | 63% | 3150 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 39,784 psi | 65% | 3235 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 44,019 psi | 72% | 3284 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 39,885 psi | 65% | 3163 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,064 psi | 76% | 3304 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 46,137 psi | 76% | 3307 fps | 100% |
| Alliant Power Pro 2000-MR | 68.3 gr | 80% | 40,118 psi | 66% | 3297 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,043 psi | 61% | 3123 fps | 96.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,740 psi | 65% | 3196 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 90% | 39,581 psi | 65% | 3251 fps | 95.2% |
| Alliant Reloder-17 | 70.6 gr | 84% | 36,767 psi | 60% | 3202 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 36,463 psi | 60% | 3176 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,410 psi | 71% | 3278 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 36,680 psi | 60% | 3120 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,747 psi | 78% | 3297 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,121 psi | 74% | 3320 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,763 psi | 82% | 3491 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 84% | 43,062 psi | 71% | 3261 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 44,396 psi | 73% | 3301 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 33,982 psi | 56% | 3051 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,553 psi | 67% | 3255 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 43% | 2005 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,656 psi | 70% | 3241 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 44,019 psi | 72% | 3310 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,160 psi | 64% | 3140 fps | 95.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,792 psi | 83% | 3363 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 50,821 psi | 83% | 3389 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 41,089 psi | 67% | 3245 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 40,698 psi | 67% | 3238 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 46,064 psi | 76% | 3304 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 43,279 psi | 71% | 3264 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 44,121 psi | 72% | 3219 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 39,204 psi | 64% | 3153 fps | 97.8% |
| Lovex S065 | <<locked>> | 90% | 44,251 psi | 73% | 3255 fps | 95% |
| Lovex S070 | <<locked>> | 96% | 50,908 psi | 84% | 3412 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,105 psi | 71% | 3235 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 43,439 psi | 71% | 3251 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 39,160 psi | 64% | 3186 fps | 96.4% |
| Norma URP | <<locked>> | 90% | 39,972 psi | 66% | 3238 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 38,798 psi | 64% | 3192 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 48,008 psi | 79% | 3422 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 46,195 psi | 76% | 3294 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,672 psi | 75% | 3323 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,908 psi | 82% | 3360 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 43% | 2051 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,806 psi | 82% | 3373 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,713 psi | 68% | 3317 fps | 96.5% |
| ReloadSwiss RS 60 | 67.3 gr | 80% | 34,200 psi | 56% | 3143 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,728 psi | 70% | 3327 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 45,948 psi | 75% | 3412 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 46,963 psi | 77% | 3301 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 40,973 psi | 67% | 3176 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 34,374 psi | 56% | 3048 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,251 psi | 73% | 3255 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,279 psi | 71% | 3264 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 39,204 psi | 64% | 3153 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 96% | 50,908 psi | 84% | 3412 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 38,043 psi | 62% | 3176 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,541 psi | 73% | 3261 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,641 psi | 70% | 3241 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,338 psi | 73% | 3192 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,854 psi | 61% | 3022 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,285 psi | 83% | 3317 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 50,140 psi | 82% | 3399 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 44,048 psi | 72% | 3192 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,208 psi | 73% | 3261 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 35,273 psi | 58% | 3064 fps | 95.6% |
| Somchem S365 | <<locked>> | 86% | 31,270 psi | 51% | 3035 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 50,053 psi | 82% | 3281 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,628 psi | 73% | 3192 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,248 psi | 66% | 3166 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,060 psi | 67% | 3169 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 33,547 psi | 55% | 2989 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 90% | 41,727 psi | 69% | 3241 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 46,209 psi | 76% | 3301 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 39,697 psi | 65% | 3150 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 41,234 psi | 68% | 3241 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 36,956 psi | 61% | 3205 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 34,301 psi | 56% | 3012 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 45,905 psi | 75% | 3350 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,134 psi | 69% | 3248 fps | 97.9% |
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 103 powders for .300 Blaser Mag. loaded with the .308 | 115gr | Lehigh Defense Controlled Chaos. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,602 fps; across all powders the maximum-charge window runs from 2,234 fps to 3,602 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 Blaser Mag. with the .308 | 115gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, ADI AR 2209 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.