Load Specifications
Load data in caliber .300 Lapua Mag. with .311 | 190gr | Prvi Partizan FMJ BT bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Winchester StaBALL HD and ReloadSwiss RS 76.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 52,895 psi | 87% | 2851 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,099 psi | 89% | 2881 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 54,462 psi | 89% | 3005 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 92% | 55,114 psi | 90% | 3005 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 90% | 54,882 psi | 90% | 2940 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 52,721 psi | 87% | 2946 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,618 psi | 83% | 2907 fps | 98.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,281 psi | 74% | 2871 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 55,085 psi | 90% | 2940 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,013 psi | 90% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 54,433 psi | 89% | 2930 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 52,910 psi | 87% | 2946 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,143 psi | 89% | 2917 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 53,519 psi | 88% | 2979 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 54,433 psi | 89% | 3005 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,534 psi | 90% | 2910 fps | 96.7% |
| Bofors RP15 | <<locked>> | 94% | 52,141 psi | 86% | 2933 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,069 psi | 87% | 2979 fps | 99.3% |
| Bofors RP5 | <<locked>> | 92% | 52,910 psi | 87% | 2946 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 52,997 psi | 87% | 2828 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 52,069 psi | 85% | 2933 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 82% | 52,301 psi | 86% | 2881 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 54,723 psi | 90% | 2894 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 52,678 psi | 86% | 2884 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 51,663 psi | 85% | 2867 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 52,040 psi | 85% | 2812 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 52,431 psi | 86% | 3051 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 52,257 psi | 86% | 2913 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,231 psi | 61% | 1818 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,447 psi | 89% | 2867 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,273 psi | 89% | 2851 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 54,607 psi | 90% | 2874 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 53,708 psi | 88% | 2867 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 94% | 54,360 psi | 89% | 2986 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,814 psi | 67% | 2772 fps | 96.8% |
| Lovex S065 | <<locked>> | 84% | 55,013 psi | 90% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 53,345 psi | 88% | 2848 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,186 psi | 89% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 84% | 51,866 psi | 85% | 2867 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 40,886 psi | 67% | 2799 fps | 98.9% |
| Norma MRP | <<locked>> | 90% | 52,692 psi | 87% | 2966 fps | 100% |
| Norma URP | <<locked>> | 84% | 52,765 psi | 87% | 2867 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,027 psi | 90% | 3005 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 54,984 psi | 90% | 2923 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,200 psi | 87% | 2933 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,985 psi | 62% | 1860 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,273 psi | 89% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 52,402 psi | 86% | 2933 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 52,721 psi | 87% | 3041 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,692 psi | 85% | 2995 fps | 98.2% |
| Rottweil R 904 | <<locked>> | 88% | 52,634 psi | 86% | 2854 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 90% | 54,099 psi | 89% | 2920 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 52,997 psi | 87% | 2828 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,013 psi | 90% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 53,345 psi | 88% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,143 psi | 89% | 2802 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 53,679 psi | 88% | 2917 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 53,925 psi | 89% | 2848 fps | 98.5% |
| Somchem S365 | <<locked>> | 86% | 53,040 psi | 87% | 2867 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,607 psi | 90% | 2894 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 55,071 psi | 90% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,259 psi | 89% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,041 psi | 89% | 2871 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 53,563 psi | 88% | 2864 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 52,823 psi | 87% | 2890 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 52,547 psi | 86% | 2963 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 96% | 52,359 psi | 86% | 2940 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,895 psi | 87% | 3002 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 53,751 psi | 88% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 52,301 psi | 86% | 2881 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 51,750 psi | 85% | 2995 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,317 psi | 89% | 2887 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 35,462 psi | 58% | 2526 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 47,427 psi | 78% | 2776 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 38,319 psi | 63% | 2690 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 84% | 41,611 psi | 68% | 2753 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 39,378 psi | 65% | 2651 fps | 97% |
| ADI AR 2213 | <<locked>> | 82% | 37,594 psi | 62% | 2638 fps | 95% |
| ADI AR 2217 | <<locked>> | 92% | 38,812 psi | 64% | 2664 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 88% | 30,632 psi | 50% | 2507 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,871 psi | 65% | 2654 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,295 psi | 74% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,494 psi | 65% | 2648 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,288 psi | 58% | 2589 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,997 psi | 56% | 2552 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,559 psi | 49% | 2464 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,217 psi | 61% | 2694 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 48,138 psi | 79% | 2792 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 35,114 psi | 58% | 2585 fps | 95.6% |
| Bofors RP30 | <<locked>> | 88% | 35,273 psi | 58% | 2621 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 35,288 psi | 58% | 2589 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 49,734 psi | 82% | 2772 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 37,115 psi | 61% | 2628 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 48,834 psi | 80% | 2822 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 51,358 psi | 84% | 2838 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 40,205 psi | 66% | 2648 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 82% | 39,407 psi | 65% | 2631 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,656 psi | 70% | 2657 fps | 100% |
| Hodgdon Retumbo | 71.6 gr | 84% | 32,851 psi | 54% | 2602 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 48,501 psi | 80% | 2851 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,934 psi | 46% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,194 psi | 74% | 2707 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,981 psi | 84% | 2795 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 44,889 psi | 74% | 2717 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,247 psi | 64% | 2589 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 84% | 38,769 psi | 64% | 2680 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,145 psi | 63% | 2710 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 48,689 psi | 80% | 2746 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 46,992 psi | 77% | 2740 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 30,574 psi | 50% | 2405 fps | 96.7% |
| Norma 204 | <<locked>> | 80% | 45,324 psi | 74% | 2749 fps | 98.3% |
| Norma 217 | <<locked>> | 92% | 31,299 psi | 51% | 2556 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 36,898 psi | 61% | 2657 fps | 97.8% |
| Norma URP | <<locked>> | 80% | 46,253 psi | 76% | 2756 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,334 psi | 63% | 2684 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 45,194 psi | 74% | 2759 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 31,850 psi | 52% | 2500 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,514 psi | 47% | 1663 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,239 psi | 78% | 2792 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,411 psi | 75% | 2815 fps | 100% |
| ReloadSwiss RS 76 | 76.7 gr | 84% | 31,995 psi | 53% | 2579 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 41,263 psi | 68% | 2792 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 40,741 psi | 67% | 2631 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 80% | 38,725 psi | 64% | 2631 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 80% | 49,734 psi | 82% | 2772 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,689 psi | 80% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 46,992 psi | 77% | 2740 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,587 psi | 78% | 2697 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,392 psi | 63% | 2625 fps | 97% |
| Somchem S361 | <<locked>> | 80% | 41,437 psi | 68% | 2618 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 43,439 psi | 71% | 2717 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,363 psi | 65% | 2615 fps | 98% |
| Vihtavuori N150 | <<locked>> | 80% | 51,634 psi | 85% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,805 psi | 78% | 2753 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,156 psi | 56% | 2490 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 47,007 psi | 77% | 2756 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,087 psi | 63% | 2625 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 39,798 psi | 65% | 2710 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 88% | 40,030 psi | 66% | 2703 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 42,627 psi | 70% | 2805 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,746 psi | 77% | 2707 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,994 psi | 80% | 2825 fps | 99.8% |
| Winchester StaBALL HD | 70.1 gr | 80% | 30,269 psi | 50% | 2579 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,926 psi | 59% | 2539 fps | 96% |
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 72 powders for .300 Lapua Mag. loaded with the .311 | 190gr | Prvi Partizan FMJ BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,818 fps to 3,051 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.311" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Hodgdon Retumbo, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for .300 Lapua Mag. with the .311 | 190gr | 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.