Load Specifications
Load data in caliber .300 Lapua Mag. with .308 | 216gr | Peregrine Glider GRM bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Winchester StaBALL HD.
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% | 51,648 psi | 85% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,982 psi | 87% | 2677 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 54,781 psi | 90% | 2812 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 90% | 54,143 psi | 89% | 2746 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 51,851 psi | 85% | 2753 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,748 psi | 82% | 2717 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,106 psi | 72% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 54,331 psi | 89% | 2733 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,737 psi | 88% | 2733 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 51,880 psi | 85% | 2749 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 53,171 psi | 87% | 2713 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 52,272 psi | 86% | 2776 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 53,142 psi | 87% | 2802 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,635 psi | 88% | 2717 fps | 97.4% |
| Bofors RP15 | <<locked>> | 96% | 54,520 psi | 90% | 2789 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,880 psi | 85% | 2782 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 51,880 psi | 85% | 2749 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 52,141 psi | 86% | 2631 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,140 psi | 84% | 2740 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 52,779 psi | 87% | 2677 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 96% | 54,810 psi | 90% | 2736 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,317 psi | 89% | 2730 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 54,563 psi | 90% | 2657 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,868 psi | 90% | 2904 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 51,416 psi | 84% | 2720 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,028 psi | 61% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,795 psi | 88% | 2674 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,664 psi | 88% | 2654 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 54,882 psi | 90% | 2690 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,997 psi | 87% | 2677 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 92% | 53,476 psi | 88% | 2785 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,581 psi | 65% | 2589 fps | 97.5% |
| Lovex S065 | <<locked>> | 84% | 54,143 psi | 89% | 2651 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,344 psi | 86% | 2648 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 52,779 psi | 87% | 2671 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,534 psi | 90% | 2726 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 39,624 psi | 65% | 2612 fps | 99.3% |
| Norma MRP | <<locked>> | 90% | 51,590 psi | 85% | 2766 fps | 100% |
| Norma URP | <<locked>> | 84% | 51,808 psi | 85% | 2664 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 53,301 psi | 88% | 2795 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 86% | 54,070 psi | 89% | 2723 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,027 psi | 89% | 2766 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,840 psi | 62% | 1713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 53,084 psi | 87% | 2703 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 51,605 psi | 85% | 2733 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 51,517 psi | 85% | 2844 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,125 psi | 82% | 2799 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 88% | 51,967 psi | 85% | 2664 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 53,026 psi | 87% | 2720 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 52,141 psi | 86% | 2631 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 54,143 psi | 89% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,344 psi | 86% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,374 psi | 88% | 2608 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,605 psi | 86% | 2717 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 53,156 psi | 87% | 2657 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 52,185 psi | 86% | 2667 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,447 psi | 88% | 2694 fps | 100% |
| Unknown powder | <<locked>> | 82% | 52,098 psi | 86% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 54,998 psi | 90% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 52,272 psi | 86% | 2635 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,824 psi | 90% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 52,852 psi | 87% | 2680 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 51,750 psi | 85% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 52,214 psi | 86% | 2779 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 98% | 54,766 psi | 90% | 2802 fps | 99.5% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,561 psi | 85% | 2805 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 49,168 psi | 81% | 2795 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,939 psi | 87% | 2618 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,476 psi | 89% | 2844 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,665 psi | 90% | 2710 fps | 99.9% |
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% | 34,185 psi | 56% | 2346 fps | 98.8% |
| Accurate 4350 | <<locked>> | 80% | 46,151 psi | 76% | 2575 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 41,350 psi | 68% | 2579 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 38,653 psi | 63% | 2474 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 82% | 36,854 psi | 61% | 2464 fps | 96% |
| ADI AR 2217 | <<locked>> | 90% | 35,447 psi | 58% | 2431 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 86% | 27,818 psi | 46% | 2283 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,527 psi | 73% | 2585 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,609 psi | 63% | 2467 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,374 psi | 56% | 2415 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,112 psi | 54% | 2375 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,689 psi | 47% | 2300 fps | 97.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,274 psi | 60% | 2513 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 44,498 psi | 73% | 2556 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 32,039 psi | 53% | 2356 fps | 95.6% |
| Bofors RP30 | <<locked>> | 88% | 34,243 psi | 56% | 2448 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 34,374 psi | 56% | 2415 fps | 96.7% |
| Bofors RP7 | <<locked>> | 80% | 48,979 psi | 80% | 2582 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 88% | 34,084 psi | 56% | 2405 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 80% | 46,572 psi | 76% | 2575 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 84% | 37,028 psi | 61% | 2418 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 36,056 psi | 59% | 2398 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,901 psi | 69% | 2470 fps | 100% |
| Hodgdon Retumbo | 63.7 gr | 82% | 29,907 psi | 49% | 2372 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 47,776 psi | 78% | 2661 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 46% | 1493 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,469 psi | 73% | 2523 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,444 psi | 83% | 2605 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 39,943 psi | 66% | 2454 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 38,551 psi | 63% | 2415 fps | 96% |
| IMR 7828 SSC | <<locked>> | 80% | 35,143 psi | 58% | 2438 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 96% | 34,650 psi | 57% | 2477 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 47,877 psi | 79% | 2556 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 46,224 psi | 76% | 2549 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 29,443 psi | 48% | 2234 fps | 97.3% |
| Norma 204 | <<locked>> | 80% | 44,396 psi | 73% | 2562 fps | 98.8% |
| Norma 217 | <<locked>> | 90% | 28,297 psi | 46% | 2329 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 35,940 psi | 59% | 2477 fps | 98.5% |
| Norma URP | <<locked>> | 80% | 45,542 psi | 75% | 2569 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,318 psi | 60% | 2480 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 80% | 44,193 psi | 73% | 2569 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 31,459 psi | 52% | 2346 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,326 psi | 47% | 1529 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,267 psi | 76% | 2602 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,614 psi | 73% | 2625 fps | 100% |
| ReloadSwiss RS 76 | 68.2 gr | 82% | 28,819 psi | 47% | 2343 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 37,014 psi | 61% | 2546 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 40,089 psi | 66% | 2454 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 80% | 38,014 psi | 62% | 2454 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 80% | 48,979 psi | 80% | 2582 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,877 psi | 79% | 2556 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 46,224 psi | 76% | 2549 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,833 psi | 77% | 2510 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,681 psi | 62% | 2451 fps | 97.7% |
| Somchem S361 | <<locked>> | 80% | 40,611 psi | 67% | 2444 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 42,496 psi | 70% | 2523 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,406 psi | 63% | 2434 fps | 98.5% |
| Unknown powder | <<locked>> | 80% | 48,646 psi | 80% | 2615 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,614 psi | 75% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,805 psi | 80% | 2585 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,343 psi | 53% | 2297 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 49,429 psi | 81% | 2631 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,057 psi | 61% | 2444 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 37,014 psi | 61% | 2490 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 86% | 36,274 psi | 60% | 2464 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 92% | 38,696 psi | 64% | 2562 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 98% | 45,788 psi | 75% | 2733 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,890 psi | 75% | 2520 fps | 100% |
| Winchester StaBALL HD | 63.8 gr | 80% | 29,182 psi | 48% | 2402 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,247 psi | 63% | 2434 fps | 97.7% |
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 75 powders for .300 Lapua Mag. loaded with the .308 | 216gr | Peregrine Glider GRM. Hodgdon Retumbo delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,904 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 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 216.0 gr projectile in 0.308" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for .300 Lapua Mag. with the .308 | 216gr | Peregrine Glider GRM they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-50, IMR 7977 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.