Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 181gr | Brenneke TUG bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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 3100 | <<locked>> | 96% | 52,402 psi | 86% | 2881 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,085 psi | 89% | 2920 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,360 psi | 89% | 3025 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 52,707 psi | 87% | 2835 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,853 psi | 90% | 2969 fps | 99% |
| ADI AR 2213 | <<locked>> | 96% | 52,620 psi | 86% | 2969 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,798 psi | 64% | 2746 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,085 psi | 90% | 2966 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,824 psi | 88% | 2861 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,766 psi | 90% | 2976 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,330 psi | 86% | 2940 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,375 psi | 89% | 2959 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,112 psi | 86% | 2966 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,982 psi | 87% | 2946 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,907 psi | 80% | 2943 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,823 psi | 87% | 3031 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,708 psi | 90% | 3009 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 54,607 psi | 90% | 2874 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,773 psi | 74% | 2867 fps | 96.8% |
| Bofors RP5 | <<locked>> | 96% | 52,112 psi | 86% | 2966 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 53,853 psi | 88% | 2867 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,385 psi | 79% | 2884 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 82% | 54,781 psi | 90% | 2894 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,460 psi | 86% | 2917 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 52,011 psi | 85% | 2874 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 52,692 psi | 87% | 2910 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,590 psi | 85% | 2890 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,851 psi | 85% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,805 psi | 78% | 2992 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 86% | 52,475 psi | 86% | 2953 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 60% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,042 psi | 90% | 2907 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,083 psi | 86% | 2841 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,476 psi | 89% | 2910 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,143 psi | 89% | 2897 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 53,882 psi | 88% | 3005 fps | 98.1% |
| Lovex S065 | <<locked>> | 86% | 52,460 psi | 86% | 2841 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 53,824 psi | 88% | 2884 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,980 psi | 82% | 2841 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 52,344 psi | 86% | 2904 fps | 98.5% |
| Norma MRP | <<locked>> | 94% | 51,663 psi | 85% | 2989 fps | 99.6% |
| Norma URP | <<locked>> | 88% | 52,866 psi | 87% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,317 psi | 89% | 3022 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 88% | 51,677 psi | 85% | 2910 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,475 psi | 86% | 2956 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 62% | 1860 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,563 psi | 90% | 2881 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,851 psi | 85% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,998 psi | 89% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,243 psi | 86% | 2972 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,138 psi | 79% | 2989 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 54,897 psi | 90% | 2874 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,895 psi | 87% | 2884 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 94% | 53,853 psi | 88% | 2946 fps | 99% |
| Rottweil R 907 | <<locked>> | 86% | 53,853 psi | 88% | 2867 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,460 psi | 86% | 2841 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 53,824 psi | 88% | 2884 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,721 psi | 87% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,938 psi | 85% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,808 psi | 85% | 2792 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,388 psi | 88% | 2943 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 54,752 psi | 90% | 2871 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,418 psi | 89% | 2877 fps | 97.4% |
| Somchem S365 | <<locked>> | 90% | 52,547 psi | 86% | 2907 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,331 psi | 89% | 2920 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 52,489 psi | 86% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,636 psi | 90% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,635 psi | 88% | 2897 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 53,824 psi | 88% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,996 psi | 85% | 2923 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,750 psi | 85% | 2979 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,053 psi | 84% | 2949 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,230 psi | 89% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,692 psi | 87% | 2923 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,997 psi | 87% | 3077 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,288 psi | 89% | 2917 fps | 98.9% |
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 3100 | <<locked>> | 80% | 30,385 psi | 50% | 2431 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 41,104 psi | 67% | 2694 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 47,253 psi | 78% | 2897 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 49,603 psi | 81% | 2785 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,494 psi | 65% | 2677 fps | 95.7% |
| ADI AR 2213 | 71.2 gr | 90% | 42,946 psi | 71% | 2782 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 96% | 34,229 psi | 56% | 2625 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,827 psi | 65% | 2680 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,444 psi | 83% | 2808 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,653 psi | 65% | 2707 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,368 psi | 74% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,421 psi | 65% | 2677 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,289 psi | 61% | 2671 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,370 psi | 48% | 2467 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,254 psi | 48% | 2474 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,517 psi | 52% | 2585 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 39,363 psi | 65% | 2717 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,082 psi | 84% | 2825 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,218 psi | 64% | 2746 fps | 95% |
| Bofors RP5 | <<locked>> | 86% | 37,289 psi | 61% | 2671 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 44,657 psi | 73% | 2707 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 96% | 42,192 psi | 69% | 2759 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 51,300 psi | 84% | 2841 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,004 psi | 71% | 2746 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 45,687 psi | 75% | 2762 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 45,992 psi | 76% | 2789 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,034 psi | 74% | 2772 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,318 psi | 61% | 2592 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,840 psi | 60% | 2733 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 42,018 psi | 69% | 2762 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 45% | 1621 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,176 psi | 66% | 2635 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,006 psi | 76% | 2733 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 39,320 psi | 65% | 2644 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,846 psi | 74% | 2730 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 44,106 psi | 72% | 2822 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 43,584 psi | 72% | 2684 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 41,872 psi | 69% | 2671 fps | 98.2% |
| Lovex S071 | <<locked>> | 84% | 29,863 psi | 49% | 2418 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 39,827 psi | 65% | 2664 fps | 95.7% |
| Norma MRP | 67 gr | 82% | 33,982 psi | 56% | 2618 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 40,727 psi | 67% | 2687 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 40,799 psi | 67% | 2759 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 39,508 psi | 65% | 2677 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 36,376 psi | 60% | 2638 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 46% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,169 psi | 84% | 2825 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,138 psi | 79% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,901 psi | 67% | 2713 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,407 psi | 65% | 2726 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,750 psi | 55% | 2644 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 48,254 psi | 79% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,758 psi | 72% | 2717 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 38,609 psi | 63% | 2657 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 44,657 psi | 73% | 2707 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,584 psi | 72% | 2684 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 41,872 psi | 69% | 2671 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,400 psi | 81% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,791 psi | 80% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,656 psi | 70% | 2628 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,261 psi | 63% | 2651 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,269 psi | 79% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,628 psi | 73% | 2703 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 37,318 psi | 61% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,316 psi | 56% | 2526 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,195 psi | 76% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,003 psi | 69% | 2680 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,114 psi | 59% | 2566 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 41,481 psi | 68% | 2687 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 32,721 psi | 54% | 2543 fps | 98.4% |
| Vihtavuori N560 | 73.5 gr | 90% | 45,078 psi | 74% | 2854 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 96% | 44,570 psi | 73% | 2831 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,031 psi | 67% | 2648 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,178 psi | 71% | 2749 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,991 psi | 43% | 2457 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,435 psi | 63% | 2621 fps | 95.4% |
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 76 powders for .300 Blaser Mag. loaded with the .308 | 181gr | Brenneke TUG. Winchester StaBALL HD delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,077 fps. ADI AR 2225 gives the best case fill at 100 %, and 76 of the 76 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 181.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for .300 Blaser Mag. with the .308 | 181gr | Brenneke TUG 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.