Load Specifications
Load data in caliber .300 Blaser Mag. with .311 | 182gr | Prvi Partizan FMJ BT 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 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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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% | 53,867 psi | 88% | 2884 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,998 psi | 90% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,330 psi | 86% | 2874 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 52,315 psi | 86% | 2969 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 54,766 psi | 90% | 2844 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,069 psi | 87% | 2920 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 54,259 psi | 89% | 2976 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,391 psi | 61% | 2694 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,272 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,084 psi | 87% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,099 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,649 psi | 86% | 2910 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,563 psi | 88% | 2972 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,331 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,007 psi | 77% | 2890 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,621 psi | 90% | 3045 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,533 psi | 86% | 2953 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 52,997 psi | 87% | 2835 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,873 psi | 70% | 2808 fps | 96% |
| Bofors RP5 | <<locked>> | 98% | 53,563 psi | 88% | 2972 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 52,330 psi | 86% | 2822 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,702 psi | 77% | 2831 fps | 97% |
| Hodgdon H380 | <<locked>> | 82% | 53,316 psi | 88% | 2851 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,244 psi | 89% | 2927 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 54,012 psi | 89% | 2887 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 54,534 psi | 90% | 2920 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,345 psi | 88% | 2897 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,388 psi | 88% | 2854 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,992 psi | 76% | 2933 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 88% | 54,404 psi | 89% | 2966 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 60% | 1795 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,157 psi | 89% | 2828 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,447 psi | 88% | 2861 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,012 psi | 89% | 2851 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 52,692 psi | 87% | 2867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,562 psi | 86% | 2848 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 51,808 psi | 85% | 2946 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 54,375 psi | 89% | 2818 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,172 psi | 89% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,127 psi | 86% | 2838 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,964 psi | 79% | 2792 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 55,056 psi | 90% | 2874 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,128 psi | 89% | 2913 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 53,316 psi | 88% | 2999 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 54,433 psi | 89% | 2913 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,214 psi | 86% | 2966 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 53,301 psi | 88% | 2917 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,183 psi | 82% | 2900 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,405 psi | 61% | 1837 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,084 psi | 87% | 2835 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,519 psi | 88% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,011 psi | 85% | 2894 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,099 psi | 89% | 2982 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,195 psi | 76% | 2930 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 84% | 53,098 psi | 87% | 2828 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,781 psi | 90% | 2894 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 51,982 psi | 85% | 2900 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 52,330 psi | 86% | 2822 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,172 psi | 89% | 2848 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,375 psi | 89% | 2818 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,127 psi | 86% | 2838 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,621 psi | 90% | 2890 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,954 psi | 89% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,650 psi | 88% | 2799 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,071 psi | 90% | 2949 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 53,243 psi | 87% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,750 psi | 87% | 2828 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 54,114 psi | 89% | 2913 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,591 psi | 86% | 2874 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,230 psi | 89% | 2799 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,069 psi | 87% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,793 psi | 85% | 2848 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 52,170 psi | 86% | 2858 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,359 psi | 88% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,461 psi | 88% | 2989 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,095 psi | 81% | 2897 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,315 psi | 86% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,491 psi | 89% | 2930 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,024 psi | 82% | 3025 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,460 psi | 86% | 2867 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% | 31,357 psi | 51% | 2444 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 51,663 psi | 85% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,726 psi | 65% | 2651 fps | 99.3% |
| Accurate MAGPRO | 75.6 gr | 94% | 48,704 psi | 80% | 2907 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 48,298 psi | 79% | 2743 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,363 psi | 63% | 2631 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 44,411 psi | 73% | 2792 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 35,114 psi | 58% | 2628 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,066 psi | 81% | 2769 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,392 psi | 63% | 2661 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,859 psi | 72% | 2785 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,058 psi | 62% | 2625 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,450 psi | 63% | 2680 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,355 psi | 47% | 2421 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,153 psi | 50% | 2487 fps | 95.4% |
| Alliant Reloder-26 | 65 gr | 80% | 30,298 psi | 50% | 2536 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 37,942 psi | 62% | 2667 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 49,705 psi | 82% | 2782 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,132 psi | 66% | 2749 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 38,450 psi | 63% | 2680 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 43,468 psi | 71% | 2661 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 96% | 40,741 psi | 67% | 2703 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,806 psi | 82% | 2795 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,626 psi | 68% | 2700 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 44,483 psi | 73% | 2717 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 92% | 47,601 psi | 78% | 2802 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,572 psi | 76% | 2779 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,013 psi | 59% | 2549 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,000 psi | 62% | 2743 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 40,567 psi | 67% | 2713 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,412 psi | 45% | 1604 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,792 psi | 83% | 2776 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,073 psi | 64% | 2592 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,846 psi | 74% | 2690 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,101 psi | 63% | 2602 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,412 psi | 76% | 2740 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 42,540 psi | 70% | 2766 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 51,285 psi | 84% | 2772 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,366 psi | 70% | 2641 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 40,727 psi | 67% | 2628 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 30,661 psi | 50% | 2425 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 51,677 psi | 85% | 2825 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,580 psi | 63% | 2618 fps | 95% |
| Norma MRP | 66.3 gr | 84% | 35,099 psi | 58% | 2631 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 39,465 psi | 65% | 2644 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 42,221 psi | 69% | 2772 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 38,218 psi | 63% | 2635 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 37,463 psi | 62% | 2648 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 46% | 1644 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,647 psi | 82% | 2779 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,586 psi | 76% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,508 psi | 65% | 2671 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,232 psi | 63% | 2680 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,896 psi | 57% | 2657 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 46,833 psi | 77% | 2730 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,380 psi | 70% | 2671 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 37,333 psi | 61% | 2612 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 43,468 psi | 71% | 2661 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,366 psi | 70% | 2641 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 51,285 psi | 84% | 2772 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,727 psi | 67% | 2628 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,921 psi | 79% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,645 psi | 78% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,394 psi | 68% | 2585 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,523 psi | 65% | 2664 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 46,905 psi | 77% | 2726 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,267 psi | 76% | 2713 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,955 psi | 59% | 2602 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,462 psi | 58% | 2539 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 44,918 psi | 74% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,770 psi | 67% | 2641 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 37,333 psi | 61% | 2575 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 40,161 psi | 66% | 2641 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 31,459 psi | 52% | 2497 fps | 97.9% |
| Vihtavuori N560 | <<locked>> | 92% | 46,586 psi | 76% | 2864 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 96% | 42,801 psi | 70% | 2779 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,755 psi | 65% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,800 psi | 69% | 2703 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,092 psi | 41% | 2405 fps | 97.3% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,784 psi | 65% | 2635 fps | 95.6% |
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 .311 | 182gr | Prvi Partizan FMJ BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,795 fps to 3,045 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 182.0 gr projectile in 0.311" calls for a 1:12.5 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, Norma MRP rank at the top here: for .300 Blaser Mag. with the .311 | 182gr | Prvi Partizan FMJ BT 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.