Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 180gr | CutEdge LZR MAX GEN2 bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Alliant Reloder-16.
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>> | 82% | 53,243 psi | 87% | 2753 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 51,634 psi | 85% | 2779 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,344 psi | 86% | 2871 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 53,766 psi | 88% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,636 psi | 90% | 2920 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 54,839 psi | 90% | 3022 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 86% | 54,592 psi | 90% | 2851 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,576 psi | 86% | 2917 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,650 psi | 88% | 2966 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,708 psi | 88% | 2972 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 51,851 psi | 85% | 2822 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 51,924 psi | 85% | 2841 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,286 psi | 86% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,388 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 51,735 psi | 85% | 2904 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,344 psi | 86% | 2959 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,516 psi | 81% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,859 psi | 70% | 2815 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,866 psi | 87% | 3031 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,863 psi | 79% | 2881 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 52,214 psi | 86% | 2835 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,344 psi | 86% | 2959 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 52,054 psi | 85% | 2822 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 52,852 psi | 87% | 2854 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 53,548 psi | 88% | 2923 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 53,403 psi | 88% | 2881 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 98% | 53,780 psi | 88% | 2910 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,779 psi | 87% | 2890 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,533 psi | 86% | 2851 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,186 psi | 89% | 2890 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,003 psi | 69% | 2844 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 90% | 53,751 psi | 88% | 2963 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 60% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,882 psi | 90% | 2851 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,012 psi | 89% | 2831 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,185 psi | 87% | 2815 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 53,011 psi | 87% | 2858 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,809 psi | 88% | 2851 fps | 99.3% |
| IMR 4831 | <<locked>> | 92% | 51,735 psi | 85% | 2861 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,287 psi | 87% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,228 psi | 86% | 2844 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,952 psi | 84% | 2933 fps | 96.9% |
| Lovex S062 | <<locked>> | 84% | 53,983 psi | 89% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,664 psi | 88% | 2844 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 54,810 psi | 90% | 2887 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,366 psi | 71% | 2720 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 54,781 psi | 90% | 2881 fps | 100% |
| Norma 204 | <<locked>> | 92% | 53,563 psi | 88% | 2910 fps | 98.3% |
| Norma MRP | <<locked>> | 98% | 51,996 psi | 85% | 2989 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 53,592 psi | 88% | 2910 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 51,909 psi | 85% | 2854 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,155 psi | 84% | 2946 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 92% | 52,431 psi | 86% | 2910 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,498 psi | 75% | 2818 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,767 psi | 60% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,823 psi | 87% | 2838 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 52,736 psi | 87% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,665 psi | 90% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,403 psi | 88% | 2979 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,771 psi | 69% | 2835 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 82% | 52,591 psi | 86% | 2785 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,330 psi | 86% | 2831 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,317 psi | 89% | 2887 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 98% | 54,346 psi | 89% | 2943 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 52,054 psi | 85% | 2822 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,664 psi | 88% | 2844 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 53,983 psi | 89% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,810 psi | 90% | 2887 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,041 psi | 89% | 2890 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,085 psi | 90% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,722 psi | 88% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,185 psi | 87% | 2799 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,867 psi | 88% | 2936 fps | 98.6% |
| Somchem S355 | <<locked>> | 86% | 52,417 psi | 86% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,243 psi | 86% | 2822 fps | 96.3% |
| Somchem S365 | <<locked>> | 94% | 52,765 psi | 87% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 51,488 psi | 85% | 2864 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 52,953 psi | 87% | 2743 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,345 psi | 88% | 2762 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,896 psi | 88% | 2802 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,286 psi | 86% | 2851 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,749 psi | 83% | 2835 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 84% | 54,911 psi | 90% | 2805 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,897 psi | 90% | 2910 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 51,721 psi | 85% | 2913 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,460 psi | 86% | 2979 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 51,735 psi | 85% | 2818 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,795 psi | 88% | 2930 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,527 psi | 73% | 2949 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,576 psi | 85% | 2858 fps | 98% |
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% | 49,908 psi | 82% | 2707 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,341 psi | 79% | 2720 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 32,126 psi | 53% | 2477 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 47,297 psi | 78% | 2713 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,955 psi | 59% | 2582 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 98% | 50,836 psi | 83% | 2953 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 45,266 psi | 74% | 2697 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,263 psi | 66% | 2680 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 46,876 psi | 77% | 2841 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,850 psi | 82% | 2913 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,498 psi | 75% | 2717 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,776 psi | 80% | 2789 fps | 100% |
| Alliant Reloder-16 | 56.4 gr | 80% | 35,433 psi | 58% | 2598 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,103 psi | 66% | 2723 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 39,798 psi | 65% | 2674 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,987 psi | 66% | 2726 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,599 psi | 42% | 2346 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,009 psi | 51% | 2520 fps | 95.4% |
| Alliant Reloder-26 | 63.8 gr | 82% | 29,240 psi | 48% | 2513 fps | 95.5% |
| Bofors RP15 | <<locked>> | 94% | 39,247 psi | 64% | 2707 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 45,672 psi | 75% | 2730 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,987 psi | 66% | 2726 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 40,292 psi | 66% | 2602 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 46,108 psi | 76% | 2740 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 38,189 psi | 63% | 2635 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 41,191 psi | 68% | 2657 fps | 96% |
| Hodgdon H4831 | <<locked>> | 94% | 47,007 psi | 77% | 2792 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,226 psi | 81% | 2831 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,822 psi | 54% | 2490 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,444 psi | 83% | 2835 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,392 psi | 65% | 2779 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 37,173 psi | 61% | 2644 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 44% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,590 psi | 85% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,616 psi | 78% | 2730 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,792 psi | 82% | 2759 fps | 98.9% |
| IMR 4350 | <<locked>> | 80% | 35,955 psi | 59% | 2526 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,901 psi | 69% | 2638 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 34,693 psi | 57% | 2539 fps | 98.1% |
| IMR 4895 | <<locked>> | 80% | 50,053 psi | 82% | 2818 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 45,948 psi | 75% | 2733 fps | 95% |
| IMR 7828 SSC | <<locked>> | 96% | 44,512 psi | 73% | 2808 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 47,630 psi | 78% | 2723 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,160 psi | 64% | 2582 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 37,318 psi | 61% | 2562 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 31,212 psi | 51% | 2454 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 48,109 psi | 79% | 2776 fps | 100% |
| Norma 204 | <<locked>> | 84% | 40,567 psi | 67% | 2667 fps | 95.2% |
| Norma MRP | 66.4 gr | 88% | 36,463 psi | 60% | 2674 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 35,911 psi | 59% | 2579 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 80% | 48,327 psi | 79% | 2795 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 44,251 psi | 73% | 2815 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 34,795 psi | 57% | 2566 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 96% | 39,305 psi | 65% | 2694 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 45% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,296 psi | 76% | 2726 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,656 psi | 70% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,708 psi | 59% | 2602 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,853 psi | 57% | 2608 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,245 psi | 60% | 2697 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 49,400 psi | 81% | 2736 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,830 psi | 70% | 2674 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,672 psi | 73% | 2720 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 38,870 psi | 64% | 2657 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 40,292 psi | 66% | 2602 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,160 psi | 64% | 2582 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 47,630 psi | 78% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,318 psi | 61% | 2562 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,135 psi | 72% | 2730 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,590 psi | 85% | 2812 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,527 psi | 73% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,319 psi | 63% | 2526 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 38,493 psi | 63% | 2651 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 43,352 psi | 71% | 2674 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 48,921 psi | 80% | 2766 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 32,300 psi | 53% | 2533 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 36,883 psi | 61% | 2582 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 49,603 psi | 81% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,879 psi | 82% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,336 psi | 68% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,463 psi | 62% | 2582 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 38,725 psi | 64% | 2615 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 48,138 psi | 79% | 2707 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,767 psi | 60% | 2579 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 27,992 psi | 46% | 2418 fps | 96.2% |
| Vihtavuori N560 | <<locked>> | 94% | 45,484 psi | 75% | 2848 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,680 psi | 60% | 2552 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 38,189 psi | 63% | 2635 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 23,960 psi | 39% | 2365 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,742 psi | 69% | 2680 fps | 95.8% |
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 96 powders for .300 Blaser Mag. loaded with the .308 | 180gr | CutEdge LZR MAX GEN2. Alliant Reloder-26 delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,031 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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. Alliant Reloder-26, Norma MRP, Alliant Reloder-16 rank at the top here: for .300 Blaser Mag. with the .308 | 180gr | CutEdge LZR MAX GEN2 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.