Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 90gr | Impala LWHV LS bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 52 and Alliant Reloder-17.
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 2015 | <<locked>> | 86% | 53,867 psi | 86% | 3655 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,173 psi | 90% | 3727 fps | 99.8% |
| Accurate 2495 | <<locked>> | 90% | 53,171 psi | 85% | 3675 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,172 psi | 87% | 3717 fps | 99.5% |
| Accurate 4064 | <<locked>> | 94% | 55,941 psi | 90% | 3763 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 82% | 55,332 psi | 89% | 3642 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,695 psi | 89% | 3665 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 90% | 56,057 psi | 90% | 3776 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 94% | 53,432 psi | 86% | 3694 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,998 psi | 88% | 3730 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 88% | 54,897 psi | 88% | 3747 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,434 psi | 90% | 3871 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,593 psi | 89% | 3878 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 53,272 psi | 85% | 3727 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,318 psi | 90% | 3734 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,143 psi | 87% | 3753 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,186 psi | 87% | 3835 fps | 97.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,129 psi | 88% | 3612 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,014 psi | 90% | 3773 fps | 96.6% |
| Bofors RP3 | <<locked>> | 94% | 54,259 psi | 87% | 3747 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,635 psi | 86% | 3661 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,708 psi | 88% | 3757 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,811 psi | 89% | 3855 fps | 97% |
| Hodgdon H322 | <<locked>> | 84% | 55,361 psi | 89% | 3757 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,345 psi | 86% | 3707 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 88% | 53,171 psi | 85% | 3727 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,622 psi | 89% | 3816 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,911 psi | 56% | 2454 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,259 psi | 87% | 3727 fps | 97.8% |
| IMR 3031 | <<locked>> | 90% | 55,738 psi | 89% | 3809 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,333 psi | 90% | 3743 fps | 97.2% |
| IMR 4198 | <<locked>> | 84% | 55,550 psi | 89% | 3691 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 55,463 psi | 89% | 3799 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 88% | 54,998 psi | 88% | 3730 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 84% | 56,057 psi | 90% | 3724 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 90% | 56,086 psi | 90% | 3763 fps | 99.6% |
| Lovex S060 | <<locked>> | 90% | 55,883 psi | 90% | 3701 fps | 97.7% |
| Lovex S062 | <<locked>> | 94% | 56,376 psi | 90% | 3753 fps | 98.8% |
| Norma 201 | <<locked>> | 90% | 55,332 psi | 89% | 3730 fps | 98.6% |
| Norma 202 | <<locked>> | 90% | 55,143 psi | 88% | 3737 fps | 99.8% |
| Norma 203B | <<locked>> | 92% | 53,388 psi | 86% | 3737 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 92% | 53,592 psi | 86% | 3747 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,143 psi | 88% | 3750 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,142 psi | 85% | 3655 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,259 psi | 57% | 2507 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,578 psi | 88% | 3724 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,577 psi | 86% | 3816 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,867 psi | 86% | 3855 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 53,316 psi | 85% | 3681 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 92% | 55,680 psi | 89% | 3720 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 96% | 54,085 psi | 87% | 3730 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,086 psi | 90% | 3763 fps | 99.6% |
| Shooters World Precision | <<locked>> | 94% | 56,376 psi | 90% | 3753 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,462 psi | 87% | 3671 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,317 psi | 89% | 3789 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,258 psi | 85% | 3691 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,549 psi | 87% | 3730 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,185 psi | 85% | 3615 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,026 psi | 85% | 3602 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 53,330 psi | 86% | 3704 fps | 98.5% |
| Somchem S335 | <<locked>> | 90% | 56,246 psi | 90% | 3675 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,447 psi | 86% | 3681 fps | 97.1% |
| Somchem S355 | <<locked>> | 96% | 54,360 psi | 87% | 3730 fps | 97.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,368 psi | 73% | 3625 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 86% | 56,130 psi | 90% | 3658 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,391 psi | 90% | 3668 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,404 psi | 87% | 3707 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,637 psi | 89% | 3707 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 98% | 55,927 psi | 90% | 3714 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 88% | 55,782 psi | 89% | 3734 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 92% | 54,360 psi | 87% | 3691 fps | 99.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,491 psi | 87% | 3678 fps | 98.1% |
| Winchester 748 | <<locked>> | 88% | 55,071 psi | 88% | 3780 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,404 psi | 87% | 3737 fps | 97.9% |
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 2015 | <<locked>> | 80% | 44,817 psi | 72% | 3478 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 49,211 psi | 79% | 3589 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 38,667 psi | 62% | 3360 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 44,266 psi | 71% | 3510 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 36,376 psi | 58% | 3320 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 80% | 52,025 psi | 83% | 3579 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 52,344 psi | 84% | 3602 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 84% | 46,688 psi | 75% | 3576 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 92% | 50,531 psi | 81% | 3632 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,888 psi | 69% | 3458 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 42,119 psi | 68% | 3504 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,400 psi | 79% | 3720 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 51,996 psi | 83% | 3799 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,785 psi | 67% | 3465 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,038 psi | 80% | 3615 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 47,718 psi | 77% | 3609 fps | 95.1% |
| Alliant Reloder-17 | 78.2 gr | 92% | 44,454 psi | 71% | 3602 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,808 psi | 83% | 3553 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,315 psi | 84% | 3698 fps | 95.7% |
| Bofors RP3 | <<locked>> | 86% | 41,930 psi | 67% | 3471 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,788 psi | 72% | 3468 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,916 psi | 67% | 3471 fps | 96.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,472 psi | 78% | 3701 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 48,733 psi | 78% | 3625 fps | 99.7% |
| Hodgdon H335 | <<locked>> | 80% | 49,951 psi | 80% | 3638 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 82% | 44,237 psi | 71% | 3524 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,641 psi | 68% | 3527 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,991 psi | 42% | 2205 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 45,063 psi | 72% | 3524 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 40,190 psi | 64% | 3478 fps | 99% |
| IMR 4064 | <<locked>> | 90% | 49,922 psi | 80% | 3615 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 49,501 psi | 79% | 3579 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 45,890 psi | 74% | 3586 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 42,888 psi | 69% | 3458 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 80% | 49,153 psi | 79% | 3586 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 40,234 psi | 65% | 3422 fps | 96.8% |
| Lovex S060 | <<locked>> | 84% | 46,630 psi | 75% | 3504 fps | 95.5% |
| Lovex S062 | <<locked>> | 84% | 41,611 psi | 67% | 3428 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 40,785 psi | 65% | 3399 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 40,567 psi | 65% | 3419 fps | 97.6% |
| Norma 203B | <<locked>> | 88% | 47,021 psi | 75% | 3596 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 46,949 psi | 75% | 3602 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,298 psi | 77% | 3609 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,688 psi | 75% | 3514 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,368 psi | 42% | 2260 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,051 psi | 77% | 3586 fps | 98.4% |
| ReloadSwiss RS 52 | 73.6 gr | 88% | 49,951 psi | 80% | 3740 fps | 95.6% |
| ReloadSwiss RS 60 | 73.1 gr | 86% | 38,885 psi | 62% | 3471 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 44,860 psi | 72% | 3494 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 41,379 psi | 66% | 3402 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 90% | 44,498 psi | 71% | 3524 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,234 psi | 65% | 3422 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 41,611 psi | 67% | 3428 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,952 psi | 82% | 3602 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 45,542 psi | 73% | 3576 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,125 psi | 80% | 3629 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 48,138 psi | 77% | 3593 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,800 psi | 67% | 3369 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,679 psi | 56% | 3179 fps | 97% |
| Somchem S321 | <<locked>> | 80% | 46,659 psi | 75% | 3560 fps | 97.2% |
| Somchem S335 | <<locked>> | 80% | 41,640 psi | 67% | 3369 fps | 98.6% |
| Somchem S341 | <<locked>> | 84% | 46,905 psi | 75% | 3540 fps | 95.4% |
| Somchem S355 | <<locked>> | 90% | 45,382 psi | 73% | 3533 fps | 95.7% |
| Somchem S365 | <<locked>> | 96% | 40,001 psi | 64% | 3481 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 47,007 psi | 75% | 3491 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,684 psi | 67% | 3379 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 37,449 psi | 60% | 3340 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 38,290 psi | 61% | 3327 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 86% | 38,116 psi | 61% | 3317 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 43,018 psi | 69% | 3455 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 80% | 37,159 psi | 60% | 3301 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 44,773 psi | 72% | 3471 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 42,206 psi | 68% | 3497 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 44,657 psi | 72% | 3527 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 .308 | 90gr | Impala LWHV LS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,878 fps; across all powders the maximum-charge window runs from 2,454 fps to 3,878 fps. Accurate 4350 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 56–90 %, leaving at least 10 % headroom. Accurate 4350, Alliant Reloder-16, Hodgdon H414 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 60, ReloadSwiss RS 52, Alliant Reloder-17 rank at the top here: for .300 Win. Mag. with the .308 | 90gr | Impala LWHV LS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-16, Bofors RP7 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.