Load Specifications
Load data in caliber .300 Win. Mag. with .311 | 190gr | Winchester Silvertip bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Alliant Reloder-26.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 84% | 56,130 psi | 90% | 2743 fps | 99.5% |
| Accurate 3100 | <<locked>> | 96% | 54,549 psi | 87% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,304 psi | 90% | 2831 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 53,679 psi | 86% | 2877 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 82% | 54,476 psi | 87% | 2743 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,359 psi | 86% | 2825 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 54,621 psi | 88% | 2881 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,730 psi | 73% | 2713 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,466 psi | 65% | 2671 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,579 psi | 89% | 2766 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,447 psi | 86% | 2831 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,534 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,333 psi | 90% | 2867 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,288 psi | 87% | 2877 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,303 psi | 89% | 2854 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,039 psi | 82% | 2854 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,579 psi | 89% | 2943 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,243 psi | 85% | 2858 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,934 psi | 75% | 2785 fps | 97.3% |
| Bofors RP5 | <<locked>> | 96% | 54,288 psi | 87% | 2877 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 55,550 psi | 89% | 2779 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,963 psi | 75% | 2743 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 84% | 55,361 psi | 89% | 2841 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 88% | 55,796 psi | 89% | 2818 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 98% | 53,969 psi | 87% | 2812 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,490 psi | 86% | 2805 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,867 psi | 86% | 2759 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,893 psi | 80% | 2907 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 86% | 54,607 psi | 88% | 2861 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,811 psi | 59% | 1742 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,447 psi | 86% | 2720 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,288 psi | 89% | 2753 fps | 99.8% |
| IMR 4350 | <<locked>> | 88% | 53,447 psi | 86% | 2762 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,635 psi | 86% | 2749 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 54,302 psi | 87% | 2789 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,898 psi | 90% | 2805 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 96% | 56,333 psi | 90% | 2920 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 54,143 psi | 87% | 2749 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,463 psi | 89% | 2792 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,040 psi | 83% | 2753 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,114 psi | 87% | 2812 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 53,998 psi | 87% | 2900 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 54,650 psi | 88% | 2812 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,260 psi | 90% | 2930 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 53,534 psi | 86% | 2815 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 96% | 52,808 psi | 85% | 2841 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,768 psi | 61% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,318 psi | 90% | 2789 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,838 psi | 86% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,057 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,331 psi | 87% | 2877 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,270 psi | 81% | 2904 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 53,113 psi | 85% | 2730 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,824 psi | 88% | 2795 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 94% | 55,883 psi | 90% | 2858 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 55,550 psi | 89% | 2779 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,143 psi | 87% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,463 psi | 89% | 2792 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,578 psi | 88% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,606 psi | 86% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,447 psi | 86% | 2703 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,434 psi | 89% | 2854 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 52,953 psi | 85% | 2723 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,304 psi | 90% | 2789 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 54,897 psi | 88% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,333 psi | 90% | 2831 fps | 99.6% |
| Unknown powder | <<locked>> | 86% | 54,998 psi | 88% | 2815 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,723 psi | 88% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,405 psi | 89% | 2785 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,867 psi | 86% | 2782 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 86% | 55,956 psi | 90% | 2828 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,143 psi | 87% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,549 psi | 87% | 2904 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2867 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,159 psi | 90% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,361 psi | 89% | 2841 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2986 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,244 psi | 87% | 2795 fps | 98.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 49,371 psi | 79% | 2635 fps | 98.8% |
| Accurate 3100 | <<locked>> | 80% | 31,836 psi | 51% | 2359 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 42,931 psi | 69% | 2612 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 94% | 49,937 psi | 80% | 2815 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,227 psi | 82% | 2694 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,421 psi | 62% | 2539 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 44,672 psi | 72% | 2700 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 42,699 psi | 68% | 2651 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 94% | 33,417 psi | 54% | 2490 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,228 psi | 84% | 2717 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,263 psi | 66% | 2618 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,282 psi | 76% | 2736 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,290 psi | 61% | 2533 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,928 psi | 62% | 2589 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,530 psi | 49% | 2388 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,414 psi | 49% | 2402 fps | 95.7% |
| Alliant Reloder-26 | 66.7 gr | 80% | 32,982 psi | 53% | 2507 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 38,406 psi | 62% | 2575 fps | 95.3% |
| Bofors RP30 | <<locked>> | 96% | 41,031 psi | 66% | 2667 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 38,928 psi | 62% | 2589 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 46,021 psi | 74% | 2615 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 96% | 41,104 psi | 66% | 2621 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 48,501 psi | 78% | 2730 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,453 psi | 70% | 2598 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 44,527 psi | 71% | 2644 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,891 psi | 75% | 2690 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,914 psi | 62% | 2510 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,493 psi | 62% | 2657 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 43,714 psi | 70% | 2677 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 44% | 1558 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,241 psi | 81% | 2667 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,979 psi | 79% | 2648 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 41,481 psi | 67% | 2546 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,355 psi | 76% | 2641 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 37,130 psi | 60% | 2484 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,656 psi | 70% | 2592 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 42,743 psi | 69% | 2674 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 44,933 psi | 72% | 2595 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 43,279 psi | 69% | 2582 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 31,183 psi | 50% | 2343 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 41,321 psi | 66% | 2579 fps | 96.1% |
| Norma MRP | 66.4 gr | 82% | 35,476 psi | 57% | 2536 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 42,250 psi | 68% | 2602 fps | 99.6% |
| Ramshot Grand | <<locked>> | 86% | 41,698 psi | 67% | 2664 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 41,031 psi | 66% | 2592 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 86% | 36,303 psi | 58% | 2526 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,181 psi | 45% | 1594 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,794 psi | 85% | 2733 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,140 psi | 80% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,627 psi | 68% | 2631 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,002 psi | 66% | 2641 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,186 psi | 56% | 2569 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,879 psi | 80% | 2680 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,554 psi | 68% | 2579 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 82% | 37,463 psi | 60% | 2516 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 46,021 psi | 74% | 2615 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,933 psi | 72% | 2595 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 43,279 psi | 69% | 2582 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,111 psi | 82% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,299 psi | 81% | 2569 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,019 psi | 71% | 2543 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,130 psi | 60% | 2510 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 49,806 psi | 80% | 2674 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,267 psi | 74% | 2621 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,972 psi | 62% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,795 psi | 57% | 2451 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 45,339 psi | 73% | 2654 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 42,917 psi | 69% | 2526 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,484 psi | 73% | 2628 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 86% | 36,477 psi | 58% | 2461 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 45,948 psi | 74% | 2667 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,287 psi | 55% | 2464 fps | 98.7% |
| Vihtavuori N560 | 71.4 gr | 90% | 44,672 psi | 72% | 2726 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 94% | 43,584 psi | 70% | 2690 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,612 psi | 68% | 2562 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,501 psi | 78% | 2730 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,093 psi | 43% | 2382 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 38,029 psi | 61% | 2500 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 78 powders for .300 Win. Mag. loaded with the .311 | 190gr | Winchester Silvertip. Winchester StaBALL HD delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,742 fps to 2,986 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.311" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Vihtavuori N560, Norma MRP, Alliant Reloder-26 rank at the top here: for .300 Win. Mag. with the .311 | 190gr | Winchester Silvertip 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.