Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 155gr | CutEdge MTAC bullet and 93 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 Hodgdon Superformance.
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 2495 | <<locked>> | 84% | 53,867 psi | 88% | 2986 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,533 psi | 86% | 2999 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,153 psi | 81% | 3022 fps | 98.7% |
| Accurate 4064 | <<locked>> | 86% | 54,288 psi | 89% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,517 psi | 85% | 3091 fps | 99.8% |
| Accurate High Countryᴾ | <<locked>> | 100% | 54,244 psi | 89% | 3238 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 82% | 54,056 psi | 89% | 3077 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 51,982 psi | 85% | 3028 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 53,200 psi | 87% | 3133 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,346 psi | 89% | 3209 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 53,113 psi | 87% | 3130 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,431 psi | 86% | 3051 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,605 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 52,678 psi | 86% | 3156 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,824 psi | 88% | 3186 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 52,344 psi | 86% | 3120 fps | 97.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,168 psi | 81% | 3107 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,267 psi | 76% | 3048 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,509 psi | 67% | 2949 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,301 psi | 88% | 3255 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,099 psi | 89% | 3094 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 52,939 psi | 87% | 3068 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,168 psi | 81% | 3107 fps | 96.6% |
| Bofors RP7 | <<locked>> | 90% | 52,852 psi | 87% | 3045 fps | 98% |
| Hodgdon H380 | <<locked>> | 86% | 53,563 psi | 88% | 3081 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 54,114 psi | 89% | 3146 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 90% | 54,244 psi | 89% | 3107 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 54,694 psi | 90% | 3091 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,736 psi | 87% | 3074 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,853 psi | 90% | 3123 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,346 psi | 89% | 3182 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 59% | 1936 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,431 psi | 86% | 3035 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,723 psi | 90% | 3064 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,273 psi | 89% | 3045 fps | 98.7% |
| IMR 4350 | <<locked>> | 94% | 53,621 psi | 88% | 3077 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,607 psi | 90% | 3077 fps | 98.7% |
| IMR 4831 | <<locked>> | 94% | 52,098 psi | 86% | 3084 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 53,969 psi | 89% | 3104 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,143 psi | 89% | 3045 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,243 psi | 87% | 2999 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,810 psi | 90% | 3058 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,244 psi | 89% | 3071 fps | 99.5% |
| Lovex S070 | <<locked>> | 92% | 52,098 psi | 86% | 3054 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,480 psi | 66% | 2854 fps | 96.9% |
| Norma 201 | <<locked>> | 82% | 52,620 psi | 86% | 3015 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,505 psi | 88% | 3018 fps | 100% |
| Norma 203B | <<locked>> | 84% | 51,851 psi | 85% | 3058 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,447 psi | 89% | 3130 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 52,417 psi | 86% | 3205 fps | 98.6% |
| Norma URP | <<locked>> | 94% | 54,085 psi | 89% | 3133 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 52,518 psi | 86% | 3081 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 53,084 psi | 87% | 3133 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 60% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,664 psi | 88% | 3061 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,258 psi | 87% | 3140 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,403 psi | 88% | 3179 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 51,343 psi | 84% | 3110 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,070 psi | 89% | 3205 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 84% | 53,287 psi | 87% | 3015 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,040 psi | 87% | 3061 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,882 psi | 90% | 3100 fps | 96.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,824 psi | 90% | 3163 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 52,852 psi | 87% | 3045 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,244 psi | 89% | 3071 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,143 psi | 89% | 3045 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,810 psi | 90% | 3058 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 52,098 psi | 86% | 3054 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,853 psi | 90% | 3127 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,475 psi | 86% | 3045 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,867 psi | 88% | 2949 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,563 psi | 90% | 2949 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,157 psi | 89% | 3018 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,317 psi | 89% | 3156 fps | 97.7% |
| Somchem S335 | <<locked>> | 82% | 53,359 psi | 88% | 2946 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,042 psi | 90% | 3068 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,069 psi | 87% | 3058 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 52,895 psi | 87% | 3136 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,967 psi | 85% | 3077 fps | 98% |
| Vihtavuori N133 | <<locked>> | 82% | 54,404 psi | 89% | 2933 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,447 psi | 88% | 2976 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,027 psi | 89% | 2992 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,578 psi | 90% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,895 psi | 87% | 3074 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,834 psi | 79% | 2986 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 84% | 52,228 psi | 86% | 2989 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,924 psi | 85% | 3077 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,764 psi | 85% | 3133 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,576 psi | 86% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,346 psi | 89% | 3150 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,626 psi | 68% | 3091 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,562 psi | 86% | 3051 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,301 psi | 86% | 3071 fps | 97% |
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% | 47,123 psi | 77% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,919 psi | 75% | 2877 fps | 96.4% |
| Accurate 3100 | <<locked>> | 92% | 37,072 psi | 61% | 2779 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 44,614 psi | 73% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,431 psi | 55% | 2710 fps | 96.3% |
| Accurate High Country | <<locked>> | 98% | 50,212 psi | 82% | 3166 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 50,546 psi | 83% | 3018 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,931 psi | 70% | 2858 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 46,470 psi | 76% | 3005 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,181 psi | 77% | 3081 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,456 psi | 76% | 3005 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,018 psi | 71% | 2881 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,093 psi | 76% | 2956 fps | 99.6% |
| Alliant Reloder-16 | 59.8 gr | 80% | 33,315 psi | 55% | 2730 fps | 96.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,739 psi | 62% | 2871 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,818 psi | 75% | 2995 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,006 psi | 76% | 3045 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,369 psi | 45% | 2569 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,462 psi | 58% | 2818 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,011 psi | 56% | 2828 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,444 psi | 83% | 3031 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 43,033 psi | 71% | 2890 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 46,006 psi | 76% | 3045 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 40,770 psi | 67% | 2805 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 43,729 psi | 72% | 2900 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 38,377 psi | 63% | 2828 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 44,483 psi | 73% | 2923 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 51,126 psi | 84% | 3028 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,690 psi | 50% | 2615 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,776 psi | 78% | 3005 fps | 100% |
| Hodgdon Superformance | 71.5 gr | 84% | 40,422 psi | 66% | 2907 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,745 psi | 44% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,979 psi | 80% | 2976 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,121 psi | 74% | 2894 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,514 psi | 78% | 2920 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 41,481 psi | 68% | 2841 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,784 psi | 65% | 2782 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 32,416 psi | 53% | 2667 fps | 96% |
| IMR 4895 | <<locked>> | 80% | 47,282 psi | 78% | 2986 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 50,488 psi | 83% | 2989 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,024 psi | 82% | 2946 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,266 psi | 74% | 2894 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,101 psi | 61% | 2726 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 37,710 psi | 62% | 2756 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 35,389 psi | 58% | 2740 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 49,342 psi | 81% | 2963 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,995 psi | 82% | 2963 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,426 psi | 75% | 2940 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 47,311 psi | 78% | 3002 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 39,320 psi | 65% | 2927 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 33,765 psi | 55% | 2717 fps | 96.3% |
| Ramshot Big Game | <<locked>> | 80% | 45,832 psi | 75% | 2963 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 37,608 psi | 62% | 2818 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,137 psi | 45% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,918 psi | 72% | 2881 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,821 psi | 82% | 3081 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,190 psi | 66% | 2936 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,388 psi | 55% | 2730 fps | 95.9% |
| ReloadSwiss RS 70 | 67.1 gr | 82% | 35,360 psi | 58% | 2802 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 46,876 psi | 77% | 2907 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,509 psi | 67% | 2831 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 51,445 psi | 84% | 3041 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 44,802 psi | 74% | 2976 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 82% | 40,770 psi | 67% | 2805 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,101 psi | 61% | 2726 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,488 psi | 83% | 2989 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,266 psi | 74% | 2894 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,710 psi | 62% | 2756 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,858 psi | 69% | 2890 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,298 psi | 81% | 2989 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,473 psi | 83% | 2897 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,395 psi | 70% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,827 psi | 64% | 2723 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,382 psi | 73% | 2969 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 50,125 psi | 82% | 2894 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,285 psi | 84% | 3009 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,017 psi | 67% | 2831 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 30,182 psi | 50% | 2664 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 42,337 psi | 70% | 2890 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 51,010 psi | 84% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,021 psi | 77% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,543 psi | 78% | 2894 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,175 psi | 64% | 2762 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,085 psi | 58% | 2717 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 96% | 41,698 psi | 68% | 2861 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 45,847 psi | 75% | 2881 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,650 psi | 57% | 2717 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 29,950 psi | 49% | 2654 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,606 psi | 57% | 2690 fps | 98.7% |
| Winchester 760 | <<locked>> | 82% | 38,566 psi | 63% | 2835 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,572 psi | 45% | 2661 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,095 psi | 81% | 2992 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,223 psi | 74% | 2940 fps | 95.2% |
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 93 powders for .300 Blaser Mag. loaded with the .308 | 155gr | CutEdge MTAC. Alliant Reloder-26 delivers the highest muzzle velocity at 3,255 fps; across all powders the maximum-charge window runs from 1,936 fps to 3,255 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 155.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Alliant Reloder-22 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, Hodgdon Superformance rank at the top here: for .300 Blaser Mag. with the .308 | 155gr | CutEdge MTAC 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.