Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 85gr | Lehigh Defense Xtreme Cavitator bullet and 78 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 IMR 4895.
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>> | 88% | 54,534 psi | 85% | 3783 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 56,985 psi | 89% | 3848 fps | 99.8% |
| Accurate 2495 | <<locked>> | 94% | 56,246 psi | 88% | 3839 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,158 psi | 86% | 3848 fps | 99.5% |
| Accurate 4064 | <<locked>> | 96% | 56,028 psi | 88% | 3875 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 84% | 57,029 psi | 89% | 3786 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 57,435 psi | 90% | 3812 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 92% | 57,595 psi | 90% | 3921 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 96% | 55,143 psi | 86% | 3835 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 82% | 54,723 psi | 86% | 3858 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 56,666 psi | 89% | 3871 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 90% | 56,188 psi | 88% | 3878 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,983 psi | 85% | 3934 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 57,696 psi | 90% | 4029 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,679 psi | 86% | 3858 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 86% | 57,276 psi | 90% | 3868 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,405 psi | 87% | 3881 fps | 96.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 56,115 psi | 88% | 3980 fps | 98.3% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 57,145 psi | 90% | 3753 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,085 psi | 85% | 3835 fps | 96.1% |
| Bofors RP3 | <<locked>> | 96% | 55,347 psi | 87% | 3875 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,085 psi | 86% | 3799 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,217 psi | 88% | 3891 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,867 psi | 84% | 3924 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 86% | 56,971 psi | 89% | 3901 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 54,839 psi | 86% | 3845 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 90% | 54,491 psi | 85% | 3865 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 57,537 psi | 90% | 3957 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,171 psi | 54% | 2543 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,941 psi | 88% | 3871 fps | 98% |
| IMR 3031 | <<locked>> | 92% | 57,087 psi | 89% | 3944 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,375 psi | 85% | 3816 fps | 96.8% |
| IMR 4198 | <<locked>> | 86% | 57,261 psi | 90% | 3835 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 56,797 psi | 89% | 3930 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 90% | 56,666 psi | 89% | 3871 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 86% | 57,203 psi | 90% | 3855 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 92% | 57,261 psi | 90% | 3891 fps | 99.7% |
| Lovex S060 | <<locked>> | 92% | 57,305 psi | 90% | 3839 fps | 97.9% |
| Lovex S062 | <<locked>> | 96% | 57,609 psi | 90% | 3888 fps | 98.9% |
| Norma 200 | <<locked>> | 82% | 57,334 psi | 90% | 3839 fps | 100% |
| Norma 201 | <<locked>> | 92% | 56,217 psi | 88% | 3858 fps | 98.7% |
| Norma 202 | <<locked>> | 92% | 56,565 psi | 89% | 3875 fps | 99.9% |
| Norma 203B | <<locked>> | 94% | 54,563 psi | 86% | 3865 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 94% | 55,376 psi | 87% | 3885 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 56,898 psi | 89% | 3888 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,549 psi | 85% | 3789 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,461 psi | 54% | 2598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 56,217 psi | 88% | 3865 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,288 psi | 87% | 3957 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,811 psi | 87% | 3999 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 90% | 56,739 psi | 89% | 3862 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 94% | 56,492 psi | 89% | 3848 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 98% | 54,940 psi | 86% | 3852 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 92% | 57,261 psi | 90% | 3891 fps | 99.7% |
| Shooters World Precision | <<locked>> | 96% | 57,609 psi | 90% | 3888 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 56,159 psi | 88% | 3816 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,492 psi | 89% | 3520 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 55,332 psi | 87% | 3858 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 57,479 psi | 90% | 3930 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,694 psi | 86% | 3832 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,115 psi | 88% | 3865 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,491 psi | 85% | 3753 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,462 psi | 85% | 3734 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 54,607 psi | 86% | 3835 fps | 98.7% |
| Somchem S335 | <<locked>> | 92% | 57,319 psi | 90% | 3802 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,288 psi | 87% | 3819 fps | 97.4% |
| Somchem S355 | <<locked>> | 98% | 55,506 psi | 87% | 3858 fps | 98% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,163 psi | 68% | 3668 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 88% | 57,305 psi | 90% | 3796 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,418 psi | 85% | 3747 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 55,477 psi | 87% | 3832 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 57,246 psi | 90% | 3842 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 3848 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 90% | 57,464 psi | 90% | 3875 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 94% | 55,695 psi | 87% | 3822 fps | 99.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,924 psi | 83% | 3747 fps | 97.8% |
| Winchester 748 | <<locked>> | 90% | 57,087 psi | 89% | 3921 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,217 psi | 88% | 3878 fps | 98.2% |
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% | 41,959 psi | 66% | 3520 fps | 99.6% |
| Accurate 2460 | <<locked>> | 80% | 46,195 psi | 72% | 3632 fps | 98.6% |
| Accurate 2495 | <<locked>> | 80% | 34,664 psi | 54% | 3356 fps | 98.4% |
| Accurate 2520 | <<locked>> | 80% | 41,336 psi | 65% | 3543 fps | 97.1% |
| Accurate 4064 | <<locked>> | 80% | 32,692 psi | 51% | 3307 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 50,270 psi | 79% | 3661 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 50,618 psi | 79% | 3681 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 47,239 psi | 74% | 3698 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 92% | 48,602 psi | 76% | 3694 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 50,966 psi | 80% | 3786 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,540 psi | 68% | 3579 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 80% | 39,523 psi | 62% | 3550 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,065 psi | 74% | 3780 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,096 psi | 79% | 3858 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,802 psi | 70% | 3642 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,427 psi | 74% | 3681 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,588 psi | 76% | 3734 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 45,368 psi | 71% | 3730 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,009 psi | 78% | 3625 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,502 psi | 79% | 3760 fps | 95.1% |
| Bofors RP3 | <<locked>> | 88% | 41,843 psi | 66% | 3570 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,670 psi | 67% | 3524 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,218 psi | 61% | 3501 fps | 95.1% |
| Hodgdon CFE223 | <<locked>> | 84% | 49,966 psi | 78% | 3839 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 46,470 psi | 73% | 3688 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 80% | 47,732 psi | 75% | 3701 fps | 99% |
| Hodgdon H4895 | <<locked>> | 84% | 44,585 psi | 70% | 3638 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,323 psi | 68% | 3645 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,222 psi | 40% | 2290 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 45,948 psi | 72% | 3652 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 37,797 psi | 59% | 3520 fps | 98.3% |
| IMR 4064 | <<locked>> | 90% | 47,819 psi | 75% | 3675 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 47,688 psi | 75% | 3658 fps | 100% |
| IMR 4895 | 75.5 gr | 88% | 46,383 psi | 73% | 3704 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 82% | 43,540 psi | 68% | 3579 fps | 95.8% |
| Lovex D073.5 | <<locked>> | 80% | 46,137 psi | 72% | 3629 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 37,333 psi | 59% | 3442 fps | 95.7% |
| Lovex S060 | <<locked>> | 86% | 47,543 psi | 75% | 3632 fps | 95.7% |
| Lovex S062 | <<locked>> | 86% | 41,611 psi | 65% | 3533 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 53,679 psi | 84% | 3776 fps | 100% |
| Norma 201 | <<locked>> | 84% | 43,192 psi | 68% | 3570 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 37,884 psi | 59% | 3448 fps | 96.7% |
| Norma 203B | <<locked>> | 90% | 47,790 psi | 75% | 3720 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 90% | 48,138 psi | 75% | 3727 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 46,137 psi | 72% | 3658 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 47,601 psi | 75% | 3642 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,454 psi | 40% | 2343 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,803 psi | 72% | 3645 fps | 97.8% |
| ReloadSwiss RS 52 | 79.8 gr | 90% | 51,503 psi | 81% | 3878 fps | 95.9% |
| ReloadSwiss RS 60 | 79.2 gr | 88% | 39,233 psi | 61% | 3579 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 41,452 psi | 65% | 3527 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 84% | 40,944 psi | 64% | 3497 fps | 95% |
| Rottweil R 903 | <<locked>> | 92% | 44,672 psi | 70% | 3632 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,333 psi | 59% | 3442 fps | 95.7% |
| Shooters World Precision | <<locked>> | 86% | 41,611 psi | 65% | 3533 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,631 psi | 76% | 3661 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,577 psi | 84% | 3474 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,648 psi | 81% | 3783 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 46,514 psi | 73% | 3698 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,906 psi | 75% | 3698 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 45,861 psi | 72% | 3645 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,320 psi | 62% | 3412 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,300 psi | 51% | 3209 fps | 95.9% |
| Somchem S321 | <<locked>> | 80% | 44,208 psi | 69% | 3606 fps | 96.4% |
| Somchem S335 | <<locked>> | 80% | 39,073 psi | 61% | 3412 fps | 97.9% |
| Somchem S341 | <<locked>> | 86% | 47,906 psi | 75% | 3668 fps | 95.6% |
| Somchem S355 | <<locked>> | 92% | 45,643 psi | 72% | 3645 fps | 95.6% |
| Somchem S365 | <<locked>> | 98% | 40,335 psi | 63% | 3589 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,585 psi | 70% | 3553 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,407 psi | 62% | 3428 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 34,650 psi | 54% | 3366 fps | 98.3% |
| Vihtavuori N140 | <<locked>> | 80% | 35,824 psi | 56% | 3363 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 90% | 40,872 psi | 64% | 3491 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 40,683 psi | 64% | 3501 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 34,795 psi | 55% | 3330 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 45,905 psi | 72% | 3593 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 39,900 psi | 63% | 3540 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 45,397 psi | 71% | 3645 fps | 95.7% |
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 78 powders for .300 Weath. Mag. loaded with the .308 | 85gr | Lehigh Defense Xtreme Cavitator. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 4,029 fps; across all powders the maximum-charge window runs from 2,543 fps to 4,029 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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, IMR 4895 rank at the top here: for .300 Weath. Mag. with the .308 | 85gr | Lehigh Defense Xtreme Cavitator 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.