Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 180gr | Alaska Bullet Works Kodiak SP SPBC bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate MAGPRO and Accurate High Country.
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 3100 | <<locked>> | 98% | 53,940 psi | 89% | 2900 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 52,330 psi | 86% | 2894 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 51,532 psi | 85% | 2992 fps | 97.7% |
| Accurate MAGPRO | <<locked>> | 96% | 52,315 psi | 86% | 2989 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 54,853 psi | 90% | 2867 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,229 psi | 87% | 2940 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 54,360 psi | 89% | 2995 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,579 psi | 62% | 2710 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,417 psi | 88% | 2936 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,388 psi | 86% | 2838 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,069 psi | 87% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,259 psi | 89% | 2969 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,721 psi | 87% | 2930 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,606 psi | 88% | 2989 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,433 psi | 89% | 2969 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,094 psi | 77% | 2907 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,636 psi | 90% | 3061 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,576 psi | 86% | 2969 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 53,069 psi | 87% | 2854 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,105 psi | 71% | 2831 fps | 96% |
| Bofors RP5 | <<locked>> | 98% | 53,606 psi | 88% | 2989 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 52,576 psi | 86% | 2844 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,688 psi | 77% | 2848 fps | 97% |
| Hodgdon H380 | <<locked>> | 82% | 53,345 psi | 88% | 2871 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,244 psi | 89% | 2946 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 53,983 psi | 89% | 2904 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 54,636 psi | 90% | 2936 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,432 psi | 88% | 2917 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,592 psi | 88% | 2874 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,195 psi | 76% | 2953 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 88% | 54,491 psi | 89% | 2986 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,579 psi | 60% | 1808 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,230 psi | 89% | 2848 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,417 psi | 88% | 2877 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,012 psi | 89% | 2871 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 52,910 psi | 87% | 2887 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,707 psi | 87% | 2867 fps | 97% |
| IMR 7828 SSC | <<locked>> | 98% | 52,083 psi | 86% | 2969 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 54,505 psi | 89% | 2838 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,157 psi | 89% | 2864 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,330 psi | 86% | 2861 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,051 psi | 79% | 2808 fps | 99.5% |
| Norma 204 | <<locked>> | 90% | 54,288 psi | 89% | 2933 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 53,345 psi | 88% | 3018 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 54,607 psi | 90% | 2933 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,257 psi | 86% | 2982 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 53,461 psi | 88% | 2936 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,343 psi | 83% | 2917 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 61% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,084 psi | 87% | 2854 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,722 psi | 88% | 2959 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,170 psi | 86% | 2917 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,143 psi | 89% | 2999 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,311 psi | 76% | 2949 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 84% | 53,156 psi | 87% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,882 psi | 90% | 2910 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 51,909 psi | 85% | 2913 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 52,576 psi | 86% | 2844 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,157 psi | 89% | 2864 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,505 psi | 89% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,330 psi | 86% | 2861 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,607 psi | 90% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,056 psi | 89% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,621 psi | 88% | 2815 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,940 psi | 90% | 2966 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 53,098 psi | 87% | 2844 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,808 psi | 87% | 2844 fps | 96.8% |
| Somchem S365 | <<locked>> | 92% | 54,259 psi | 89% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,721 psi | 87% | 2894 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,476 psi | 89% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,069 psi | 87% | 2871 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,851 psi | 85% | 2864 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 52,315 psi | 86% | 2881 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,461 psi | 88% | 2946 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,548 psi | 88% | 3005 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,095 psi | 81% | 2917 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,446 psi | 86% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,447 psi | 89% | 2949 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,096 psi | 82% | 3041 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,533 psi | 86% | 2884 fps | 98.5% |
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 3100 | <<locked>> | 82% | 31,415 psi | 52% | 2457 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 39,842 psi | 65% | 2671 fps | 99.3% |
| Accurate High Country | 70.1 gr | 88% | 41,742 psi | 69% | 2799 fps | 95.1% |
| Accurate MAGPRO | 76.3 gr | 94% | 48,791 psi | 80% | 2923 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 48,428 psi | 80% | 2762 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,915 psi | 67% | 2707 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 44,527 psi | 73% | 2808 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 35,186 psi | 58% | 2648 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,464 psi | 63% | 2648 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,153 psi | 81% | 2785 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,493 psi | 63% | 2677 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,903 psi | 72% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,101 psi | 63% | 2641 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,421 psi | 63% | 2694 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,427 psi | 47% | 2438 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,153 psi | 50% | 2500 fps | 95.3% |
| Alliant Reloder-26 | 65.7 gr | 80% | 30,429 psi | 50% | 2552 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 38,072 psi | 63% | 2684 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 49,574 psi | 81% | 2799 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,234 psi | 66% | 2766 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 38,421 psi | 63% | 2694 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,569 psi | 72% | 2680 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 40,799 psi | 67% | 2723 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,879 psi | 82% | 2815 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,669 psi | 68% | 2717 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 44,367 psi | 73% | 2733 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 47,718 psi | 78% | 2818 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,717 psi | 77% | 2799 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,085 psi | 59% | 2566 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,058 psi | 62% | 2759 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 40,538 psi | 67% | 2726 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 45% | 1614 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,908 psi | 84% | 2795 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,131 psi | 64% | 2608 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,933 psi | 74% | 2710 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,159 psi | 63% | 2618 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,369 psi | 76% | 2756 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 42,685 psi | 70% | 2785 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 51,184 psi | 84% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,482 psi | 70% | 2657 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 40,625 psi | 67% | 2641 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 30,690 psi | 50% | 2441 fps | 95.2% |
| Norma 204 | <<locked>> | 82% | 41,394 psi | 68% | 2694 fps | 95.9% |
| Norma MRP | <<locked>> | 84% | 35,085 psi | 58% | 2644 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 39,378 psi | 65% | 2661 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 42,279 psi | 69% | 2789 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 38,276 psi | 63% | 2651 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 37,521 psi | 62% | 2664 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 46% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,690 psi | 82% | 2799 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,615 psi | 77% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,537 psi | 65% | 2687 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,232 psi | 63% | 2697 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,940 psi | 57% | 2671 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 46,717 psi | 77% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,395 psi | 70% | 2684 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 37,376 psi | 61% | 2628 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 43,569 psi | 72% | 2680 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,482 psi | 70% | 2657 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 51,184 psi | 84% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,625 psi | 67% | 2641 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,979 psi | 79% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,761 psi | 78% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,452 psi | 68% | 2602 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,581 psi | 65% | 2680 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 47,036 psi | 77% | 2746 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,369 psi | 76% | 2733 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 36,027 psi | 59% | 2621 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,520 psi | 58% | 2556 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 44,817 psi | 74% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,828 psi | 67% | 2657 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 37,347 psi | 61% | 2592 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 40,234 psi | 66% | 2661 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 31,531 psi | 52% | 2513 fps | 97.9% |
| Vihtavuori N560 | <<locked>> | 92% | 46,688 psi | 77% | 2881 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 96% | 42,902 psi | 70% | 2795 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,798 psi | 65% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,669 psi | 68% | 2717 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,092 psi | 41% | 2418 fps | 97.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,726 psi | 65% | 2648 fps | 95.5% |
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 80 powders for .300 Blaser Mag. loaded with the .308 | 180gr | Alaska Bullet Works Kodiak SP SPBC. Alliant Reloder-26 delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,061 fps. ADI AR 2225 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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-26, Accurate MAGPRO, Accurate High Country rank at the top here: for .300 Blaser Mag. with the .308 | 180gr | Alaska Bullet Works Kodiak SP SPBC 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.