Load Specifications
Load data in caliber .300 Blaser Mag. with .311 | 180gr | Norma Semi Soft Point bullet and 77 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 High Country and Norma MRP.
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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 52,098 psi | 86% | 2881 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 53,795 psi | 88% | 2920 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,388 psi | 88% | 3028 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 54,244 psi | 89% | 3028 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 52,721 psi | 87% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,592 psi | 90% | 2972 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 52,286 psi | 86% | 2969 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,740 psi | 64% | 2749 fps | 97.5% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,781 psi | 90% | 2966 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,606 psi | 88% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,737 psi | 90% | 2982 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,025 psi | 85% | 2943 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,070 psi | 89% | 2959 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 51,822 psi | 85% | 2966 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,649 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,617 psi | 80% | 2943 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,692 psi | 87% | 3035 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,375 psi | 89% | 3009 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 54,331 psi | 89% | 2877 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,657 psi | 73% | 2867 fps | 96.7% |
| Bofors RP5 | <<locked>> | 96% | 51,822 psi | 85% | 2966 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 53,621 psi | 88% | 2871 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,095 psi | 79% | 2884 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 54,505 psi | 89% | 2897 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,214 psi | 86% | 2920 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 51,793 psi | 85% | 2877 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 52,402 psi | 86% | 2910 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,940 psi | 90% | 2949 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,940 psi | 90% | 2900 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,688 psi | 78% | 2992 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 52,170 psi | 86% | 2953 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 60% | 1821 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,795 psi | 90% | 2907 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 51,851 psi | 85% | 2841 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 54,404 psi | 89% | 2917 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,896 psi | 88% | 2897 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 53,563 psi | 88% | 3002 fps | 98% |
| Lovex S065 | <<locked>> | 86% | 52,243 psi | 86% | 2841 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 53,577 psi | 88% | 2887 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,661 psi | 82% | 2841 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 52,054 psi | 85% | 2904 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 51,517 psi | 85% | 2992 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 52,576 psi | 86% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,186 psi | 89% | 3022 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 54,853 psi | 90% | 2966 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,127 psi | 86% | 2956 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 61% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,331 psi | 89% | 2884 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,547 psi | 85% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,679 psi | 88% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 51,967 psi | 85% | 2972 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,848 psi | 79% | 2989 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 54,650 psi | 90% | 2877 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,852 psi | 87% | 2887 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 94% | 53,534 psi | 88% | 2949 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 53,621 psi | 88% | 2871 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,243 psi | 86% | 2841 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 53,577 psi | 88% | 2887 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,460 psi | 86% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,027 psi | 90% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,027 psi | 90% | 2848 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,084 psi | 87% | 2943 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 54,491 psi | 89% | 2871 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,331 psi | 89% | 2881 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 52,199 psi | 86% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,027 psi | 89% | 2920 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 52,272 psi | 86% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,360 psi | 89% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,519 psi | 88% | 2900 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 53,577 psi | 88% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,013 psi | 90% | 2972 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,692 psi | 85% | 2982 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,923 psi | 84% | 2953 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,940 psi | 89% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,373 psi | 86% | 2923 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,562 psi | 86% | 3077 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,012 psi | 89% | 2917 fps | 98.8% |
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% | 30,327 psi | 50% | 2434 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 41,031 psi | 67% | 2697 fps | 99.5% |
| Accurate High Country | 71.9 gr | 88% | 43,120 psi | 71% | 2835 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 92% | 46,978 psi | 77% | 2897 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 49,385 psi | 81% | 2789 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,465 psi | 65% | 2680 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 90% | 42,902 psi | 70% | 2785 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 34,040 psi | 56% | 2621 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,610 psi | 65% | 2680 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,401 psi | 83% | 2812 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,465 psi | 65% | 2703 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,107 psi | 74% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,204 psi | 64% | 2674 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,086 psi | 61% | 2667 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,196 psi | 48% | 2467 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,211 psi | 48% | 2477 fps | 95% |
| Alliant Reloder-26 | 67.4 gr | 80% | 31,415 psi | 52% | 2589 fps | 97.1% |
| Bofors RP15 | <<locked>> | 90% | 39,146 psi | 64% | 2717 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 51,039 psi | 84% | 2828 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,713 psi | 68% | 2805 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 37,086 psi | 61% | 2667 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,425 psi | 73% | 2707 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 42,119 psi | 69% | 2762 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 51,039 psi | 84% | 2841 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,757 psi | 70% | 2746 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,643 psi | 75% | 2762 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 45,759 psi | 75% | 2789 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,962 psi | 74% | 2776 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,115 psi | 61% | 2592 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,796 psi | 60% | 2733 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 41,800 psi | 69% | 2762 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 45% | 1624 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,958 psi | 66% | 2635 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,803 psi | 75% | 2733 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 39,276 psi | 64% | 2648 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,788 psi | 74% | 2733 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 92% | 43,859 psi | 72% | 2818 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 43,395 psi | 71% | 2684 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 41,684 psi | 68% | 2671 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 31,691 psi | 52% | 2470 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 39,595 psi | 65% | 2664 fps | 95.5% |
| Norma MRP | 67 gr | 82% | 33,794 psi | 55% | 2615 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 40,524 psi | 67% | 2690 fps | 99.4% |
| Ramshot Grand | <<locked>> | 92% | 43,627 psi | 72% | 2825 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 39,276 psi | 64% | 2680 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 36,158 psi | 59% | 2638 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 46% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,966 psi | 84% | 2828 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,877 psi | 79% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,828 psi | 67% | 2720 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,349 psi | 65% | 2730 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,678 psi | 55% | 2644 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 48,008 psi | 79% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,540 psi | 71% | 2717 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 84% | 38,377 psi | 63% | 2657 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,425 psi | 73% | 2707 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,395 psi | 71% | 2684 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 41,684 psi | 68% | 2671 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,124 psi | 81% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,791 psi | 80% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,453 psi | 70% | 2631 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,058 psi | 62% | 2651 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 48,066 psi | 79% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,556 psi | 73% | 2707 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 37,101 psi | 61% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,492 psi | 60% | 2585 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 45,948 psi | 75% | 2697 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,959 psi | 69% | 2687 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,056 psi | 59% | 2569 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 41,263 psi | 68% | 2687 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,634 psi | 54% | 2546 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 90% | 44,991 psi | 74% | 2854 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 96% | 44,483 psi | 73% | 2835 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,843 psi | 67% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,946 psi | 71% | 2749 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,817 psi | 42% | 2454 fps | 97.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,232 psi | 63% | 2621 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 77 powders for .300 Blaser Mag. loaded with the .311 | 180gr | Norma Semi Soft Point. Winchester StaBALL HD delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,077 fps. ADI AR 2225 gives the best case fill at 100 %, and 77 of the 77 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 0.311" calls for a 1:14.5 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. Alliant Reloder-26, Accurate High Country, Norma MRP rank at the top here: for .300 Blaser Mag. with the .311 | 180gr | Norma Semi Soft Point 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.