Load Specifications
Bullet Manufacturer:Lehigh Defense
Bullet Weight:180 gr
Bullet Diameter:0.311"
Bullet Length:<<locked>>
Caliber:.300 Win. Mag. load data
Case Length (l3):2.62"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:90.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:10.5
Load data in caliber .300 Win. Mag. with .311 | 180gr | Lehigh Defense Match Solid bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-16 and Hodgdon Superformance.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 54,998 psi | 88% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,694 psi | 88% | 2753 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,154 psi | 80% | 2772 fps | 99.2% |
| Accurate 4064 | <<locked>> | 86% | 55,550 psi | 89% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 52,721 psi | 85% | 2831 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,085 psi | 88% | 2808 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,391 psi | 90% | 2815 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,201 psi | 87% | 2874 fps | 97.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 51,793 psi | 83% | 2861 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,593 psi | 89% | 2936 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 53,969 psi | 87% | 2867 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 53,417 psi | 86% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,737 psi | 86% | 2808 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,940 psi | 86% | 2890 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,911 psi | 88% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,200 psi | 85% | 2858 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,299 psi | 81% | 2858 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,297 psi | 76% | 2795 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,379 psi | 66% | 2717 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,244 psi | 87% | 2986 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,245 psi | 89% | 2828 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,093 psi | 74% | 2782 fps | 96.3% |
| Bofors RP3 | <<locked>> | 86% | 53,911 psi | 86% | 2799 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,299 psi | 81% | 2858 fps | 97.4% |
| Bofors RP7 | <<locked>> | 90% | 53,708 psi | 86% | 2785 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 86% | 54,636 psi | 88% | 2818 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 52,881 psi | 85% | 2848 fps | 99% |
| Hodgdon H4350 | <<locked>> | 92% | 53,635 psi | 86% | 2822 fps | 98.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 54,433 psi | 87% | 2851 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 55,709 psi | 89% | 2818 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,056 psi | 87% | 2815 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,231 psi | 90% | 2858 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,477 psi | 89% | 2923 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 58% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,854 psi | 90% | 2805 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,042 psi | 88% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,216 psi | 89% | 2789 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,201 psi | 87% | 2766 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 54,621 psi | 88% | 2818 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,492 psi | 89% | 2812 fps | 99.1% |
| IMR 4831 | <<locked>> | 98% | 54,215 psi | 87% | 2838 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,114 psi | 88% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 53,824 psi | 86% | 2805 fps | 96.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2900 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 82% | 55,419 psi | 89% | 2782 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,244 psi | 87% | 2736 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,883 psi | 90% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,376 psi | 89% | 2808 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 53,171 psi | 85% | 2799 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,611 psi | 67% | 2625 fps | 97.7% |
| Norma 201 | <<locked>> | 82% | 53,766 psi | 86% | 2753 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,534 psi | 87% | 2749 fps | 100% |
| Norma 203B | <<locked>> | 84% | 52,982 psi | 85% | 2792 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,390 psi | 89% | 2871 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 53,476 psi | 86% | 2943 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 55,114 psi | 88% | 2867 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 53,664 psi | 86% | 2818 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,736 psi | 85% | 2904 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 54,099 psi | 87% | 2874 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,168 psi | 79% | 2815 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,738 psi | 59% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,708 psi | 88% | 2805 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,650 psi | 88% | 2874 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,607 psi | 88% | 2907 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 52,504 psi | 84% | 2851 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,085 psi | 88% | 2940 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 54,346 psi | 87% | 2753 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,998 psi | 87% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,956 psi | 90% | 2844 fps | 97.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,028 psi | 90% | 2900 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 53,708 psi | 86% | 2785 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,376 psi | 89% | 2808 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,419 psi | 89% | 2782 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,883 psi | 90% | 2792 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 53,171 psi | 85% | 2799 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,956 psi | 90% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,420 psi | 90% | 2815 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,679 psi | 86% | 2782 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,737 psi | 88% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,753 psi | 89% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,158 psi | 88% | 2762 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2897 fps | 98.3% |
| Somchem S335 | <<locked>> | 82% | 54,462 psi | 87% | 2684 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,202 psi | 90% | 2805 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,288 psi | 87% | 2795 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 54,056 psi | 87% | 2782 fps | 95.9% |
| Somchem S365 | <<locked>> | 96% | 54,302 psi | 87% | 2874 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,040 psi | 85% | 2825 fps | 98.5% |
| Unknown powder | <<locked>> | 92% | 56,115 psi | 90% | 2877 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,042 psi | 88% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,607 psi | 88% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,433 psi | 87% | 2723 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,883 psi | 90% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,939 psi | 85% | 2795 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,137 psi | 76% | 2713 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 84% | 53,867 psi | 86% | 2746 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,127 psi | 85% | 2838 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2874 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 53,534 psi | 86% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,881 psi | 85% | 2848 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,569 psi | 68% | 2844 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,100 psi | 88% | 2844 fps | 98% |
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 2495 | <<locked>> | 80% | 48,240 psi | 77% | 2628 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,974 psi | 67% | 2533 fps | 95.9% |
| Accurate 3100 | <<locked>> | 90% | 35,447 psi | 57% | 2497 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 45,759 psi | 73% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,418 psi | 55% | 2487 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 51,648 psi | 83% | 2756 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,932 psi | 70% | 2612 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 44,367 psi | 71% | 2700 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 98% | 48,399 psi | 78% | 2799 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,312 psi | 77% | 2822 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 44,469 psi | 71% | 2700 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,092 psi | 71% | 2635 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,152 psi | 76% | 2700 fps | 99.9% |
| Alliant Reloder-16 | 54.2 gr | 80% | 34,258 psi | 55% | 2507 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,508 psi | 62% | 2628 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,903 psi | 70% | 2694 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,961 psi | 70% | 2740 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,368 psi | 42% | 2310 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,026 psi | 55% | 2536 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 86% | 32,387 psi | 52% | 2539 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,605 psi | 83% | 2776 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 43,120 psi | 69% | 2723 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 44,048 psi | 71% | 2641 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 43,961 psi | 70% | 2740 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 39,073 psi | 63% | 2513 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 44,599 psi | 72% | 2651 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 39,943 psi | 64% | 2608 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 84% | 41,568 psi | 67% | 2598 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 50,821 psi | 81% | 2792 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 52,214 psi | 84% | 2766 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,604 psi | 51% | 2402 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,934 psi | 74% | 2700 fps | 100% |
| Hodgdon Superformance | 63.2 gr | 82% | 38,421 psi | 62% | 2605 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,832 psi | 43% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,354 psi | 74% | 2657 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,443 psi | 78% | 2680 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,004 psi | 69% | 2589 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,511 psi | 68% | 2559 fps | 96.9% |
| IMR 4350 | <<locked>> | 84% | 39,769 psi | 64% | 2549 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,698 psi | 65% | 2549 fps | 96.3% |
| IMR 4831 | <<locked>> | 80% | 30,269 psi | 49% | 2365 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 48,356 psi | 78% | 2730 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 50,459 psi | 81% | 2749 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 49,574 psi | 79% | 2838 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 80% | 51,619 psi | 83% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,894 psi | 82% | 2687 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,166 psi | 74% | 2641 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,942 psi | 61% | 2497 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 36,143 psi | 58% | 2474 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 34,055 psi | 55% | 2464 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 50,372 psi | 81% | 2700 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,082 psi | 82% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,499 psi | 75% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 88% | 45,063 psi | 72% | 2694 fps | 95.7% |
| Norma MRP | <<locked>> | 90% | 37,579 psi | 60% | 2635 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 34,635 psi | 56% | 2490 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 46,891 psi | 75% | 2710 fps | 99.9% |
| Ramshot Grand | <<locked>> | 96% | 48,878 psi | 78% | 2835 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 82% | 36,056 psi | 58% | 2530 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 42,163 psi | 68% | 2684 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 44% | 1588 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,933 psi | 72% | 2638 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,836 psi | 82% | 2815 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,017 psi | 66% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,345 psi | 55% | 2507 fps | 96.9% |
| ReloadSwiss RS 70 | 59.3 gr | 80% | 33,779 psi | 54% | 2513 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 47,921 psi | 77% | 2654 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,423 psi | 66% | 2589 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,052 psi | 79% | 2733 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 92% | 42,772 psi | 69% | 2674 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 39,073 psi | 63% | 2513 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,942 psi | 61% | 2497 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,619 psi | 83% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,166 psi | 74% | 2641 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,143 psi | 58% | 2474 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,685 psi | 68% | 2641 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,605 psi | 84% | 2759 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,125 psi | 80% | 2726 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,474 psi | 83% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,337 psi | 69% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,057 psi | 59% | 2438 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 42,366 psi | 68% | 2667 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 51,097 psi | 82% | 2638 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,460 psi | 84% | 2749 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,974 psi | 67% | 2589 fps | 99.8% |
| Somchem S361 | <<locked>> | 94% | 50,459 psi | 81% | 2726 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 31,067 psi | 50% | 2444 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 40,625 psi | 65% | 2602 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 37,492 psi | 60% | 2543 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 80% | 48,704 psi | 78% | 2579 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,153 psi | 77% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,776 psi | 77% | 2628 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,940 psi | 58% | 2441 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 37,623 psi | 60% | 2523 fps | 98% |
| Vihtavuori N165 | <<locked>> | 96% | 41,162 psi | 66% | 2602 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 47,413 psi | 76% | 2651 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,029 psi | 61% | 2562 fps | 98% |
| Vihtavuori N555 | <<locked>> | 82% | 28,747 psi | 46% | 2382 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,447 psi | 57% | 2467 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 39,943 psi | 64% | 2608 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,353 psi | 42% | 2388 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,193 psi | 71% | 2664 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 102 powders for .300 Win. Mag. loaded with the .311 | 180gr | Lehigh Defense Match Solid. Alliant Reloder-26 delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,986 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.311" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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. ReloadSwiss RS 70, Alliant Reloder-16, Hodgdon Superformance rank at the top here: for .300 Win. Mag. with the .311 | 180gr | Lehigh Defense Match Solid 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.