Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 210gr | Berger LRBTHP bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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 3100 | <<locked>> | 96% | 53,069 psi | 85% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,969 psi | 88% | 2657 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,201 psi | 89% | 2762 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 53,519 psi | 86% | 2572 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,506 psi | 89% | 2703 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 53,127 psi | 85% | 2707 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,541 psi | 71% | 2552 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,320 psi | 63% | 2513 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,433 psi | 87% | 2592 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,579 psi | 89% | 2703 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,214 psi | 85% | 2674 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,085 psi | 88% | 2697 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,707 psi | 85% | 2703 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,635 psi | 86% | 2680 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,400 psi | 79% | 2680 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,809 psi | 86% | 2766 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 55,463 psi | 89% | 2671 fps | 95.8% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,376 psi | 89% | 2740 fps | 99.4% |
| Bofors RP3 | <<locked>> | 82% | 55,376 psi | 89% | 2608 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,397 psi | 73% | 2618 fps | 97.5% |
| Bofors RP5 | <<locked>> | 96% | 52,707 psi | 85% | 2703 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 54,621 psi | 88% | 2608 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,878 psi | 78% | 2635 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 82% | 55,463 psi | 89% | 2628 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,330 psi | 86% | 2657 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 56,115 psi | 90% | 2664 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 53,185 psi | 85% | 2648 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,782 psi | 89% | 2687 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,043 psi | 90% | 2631 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,530 psi | 78% | 2736 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 53,011 psi | 85% | 2687 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,941 psi | 59% | 1624 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,333 psi | 90% | 2602 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,608 psi | 89% | 2641 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,144 psi | 90% | 2631 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 55,347 psi | 89% | 2648 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,694 psi | 88% | 2638 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 98% | 54,462 psi | 87% | 2736 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 56,318 psi | 90% | 2625 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,404 psi | 87% | 2621 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,560 psi | 81% | 2585 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 52,924 psi | 85% | 2641 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 34,780 psi | 56% | 2438 fps | 96.2% |
| Norma MRP | <<locked>> | 96% | 56,115 psi | 90% | 2779 fps | 100% |
| Norma URP | <<locked>> | 88% | 53,534 psi | 86% | 2641 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,998 psi | 88% | 2756 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 55,898 psi | 90% | 2697 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,924 psi | 85% | 2697 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,594 psi | 60% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,274 psi | 89% | 2618 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,620 psi | 84% | 2661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,665 psi | 88% | 2677 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,924 psi | 85% | 2703 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,704 psi | 78% | 2733 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 55,506 psi | 89% | 2605 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,650 psi | 86% | 2628 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 94% | 54,462 psi | 87% | 2684 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 54,621 psi | 88% | 2608 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,318 psi | 90% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,404 psi | 87% | 2621 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,606 psi | 86% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,057 psi | 90% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,753 psi | 89% | 2585 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,012 psi | 87% | 2680 fps | 99.3% |
| Somchem S355 | <<locked>> | 84% | 55,390 psi | 89% | 2602 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,056 psi | 88% | 2621 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 53,243 psi | 85% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,998 psi | 88% | 2657 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 53,040 psi | 85% | 2530 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,477 psi | 89% | 2635 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,375 psi | 87% | 2641 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 54,447 psi | 87% | 2638 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,231 psi | 90% | 2707 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,101 psi | 90% | 2772 fps | 98.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,750 psi | 83% | 2694 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,795 psi | 88% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,330 psi | 86% | 2657 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,780 psi | 86% | 2805 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,824 psi | 88% | 2654 fps | 99.3% |
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 3100 | <<locked>> | 80% | 31,096 psi | 50% | 2221 fps | 96.3% |
| Accurate 4350 | <<locked>> | 80% | 42,003 psi | 67% | 2454 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 44,686 psi | 72% | 2589 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 50,241 psi | 81% | 2526 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,695 psi | 60% | 2388 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 88% | 40,901 psi | 66% | 2484 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 98% | 41,698 psi | 67% | 2497 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 94% | 32,619 psi | 52% | 2349 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,358 psi | 82% | 2549 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,379 psi | 65% | 2461 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,137 psi | 74% | 2569 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,550 psi | 60% | 2385 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,404 psi | 57% | 2379 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,965 psi | 48% | 2251 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 27,978 psi | 45% | 2208 fps | 95.2% |
| Alliant Reloder-26 | 60.4 gr | 80% | 32,155 psi | 52% | 2362 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 52,330 psi | 84% | 2618 fps | 95.1% |
| Bofors RP15 | <<locked>> | 88% | 37,507 psi | 60% | 2425 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,967 psi | 83% | 2562 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,755 psi | 64% | 2507 fps | 95.8% |
| Bofors RP5 | <<locked>> | 84% | 35,404 psi | 57% | 2379 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 45,208 psi | 72% | 2457 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 94% | 39,914 psi | 64% | 2461 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 52,025 psi | 83% | 2579 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,598 psi | 70% | 2497 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 46,485 psi | 75% | 2513 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 43,714 psi | 70% | 2490 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,902 psi | 69% | 2477 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,956 psi | 61% | 2356 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 35,099 psi | 56% | 2441 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 42,714 psi | 68% | 2516 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 44% | 1447 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,895 psi | 85% | 2552 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,857 psi | 66% | 2398 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,644 psi | 75% | 2484 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 40,059 psi | 64% | 2405 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,830 psi | 69% | 2438 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 90% | 41,858 psi | 67% | 2516 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 44,324 psi | 71% | 2441 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 42,554 psi | 68% | 2428 fps | 98.7% |
| Lovex S071 | <<locked>> | 82% | 28,529 psi | 46% | 2156 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 40,437 psi | 65% | 2425 fps | 96.5% |
| Norma 217 | <<locked>> | 98% | 32,764 psi | 53% | 2385 fps | 95.2% |
| Norma MRP | 58.6 gr | 80% | 32,242 psi | 52% | 2329 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 41,466 psi | 66% | 2444 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 38,638 psi | 62% | 2461 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 40,161 psi | 64% | 2438 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 34,345 psi | 55% | 2352 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,195 psi | 45% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,750 psi | 83% | 2566 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,979 psi | 79% | 2612 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,756 psi | 67% | 2474 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,016 psi | 64% | 2484 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 32,039 psi | 51% | 2362 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 49,052 psi | 79% | 2516 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,582 psi | 67% | 2421 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 82% | 36,637 psi | 59% | 2365 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 45,208 psi | 72% | 2457 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,324 psi | 71% | 2441 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 42,554 psi | 68% | 2428 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,096 psi | 80% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,530 psi | 79% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,221 psi | 69% | 2388 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,303 psi | 58% | 2362 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 49,095 psi | 79% | 2513 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,322 psi | 68% | 2411 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 38,130 psi | 61% | 2408 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,983 psi | 56% | 2306 fps | 96% |
| Vihtavuori N150 | <<locked>> | 80% | 46,891 psi | 75% | 2444 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,859 psi | 69% | 2441 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 34,461 psi | 55% | 2290 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 42,192 psi | 68% | 2444 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 33,489 psi | 54% | 2316 fps | 99% |
| Vihtavuori N560 | 64.5 gr | 88% | 42,859 psi | 69% | 2549 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 94% | 42,293 psi | 68% | 2530 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,597 psi | 67% | 2405 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,787 psi | 70% | 2500 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,440 psi | 42% | 2251 fps | 99% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,361 psi | 58% | 2336 fps | 95.3% |
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 79 powders for .300 Win. Mag. loaded with the .308 | 210gr | Berger LRBTHP. Winchester StaBALL HD delivers the highest muzzle velocity at 2,805 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,805 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.308" calls for a 1:11.5 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for .300 Win. Mag. with the .308 | 210gr | Berger LRBTHP 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.