Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 85gr | MAKER Tipped expanding bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 90% | 56,666 psi | 89% | 3825 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 56,724 psi | 89% | 3934 fps | 96.7% |
| Accurate 2460 | <<locked>> | 86% | 55,550 psi | 87% | 3829 fps | 99.7% |
| Accurate 2495 | <<locked>> | 94% | 54,360 psi | 85% | 3812 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,737 psi | 84% | 3822 fps | 99.4% |
| Accurate 4064 | <<locked>> | 96% | 54,244 psi | 85% | 3845 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 84% | 56,144 psi | 88% | 3776 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 56,550 psi | 89% | 3799 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 92% | 56,420 psi | 88% | 3898 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 82% | 57,464 psi | 90% | 3822 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 57,566 psi | 90% | 3881 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 84% | 57,682 psi | 90% | 3917 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,579 psi | 87% | 3852 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 90% | 54,911 psi | 86% | 3862 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,565 psi | 89% | 3993 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,608 psi | 89% | 4009 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,927 psi | 89% | 3907 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 56,057 psi | 88% | 3852 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,157 psi | 85% | 3862 fps | 96.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,955 psi | 86% | 3957 fps | 98.1% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,188 psi | 88% | 3740 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 57,014 psi | 89% | 3894 fps | 96.7% |
| Bofors RP3 | <<locked>> | 96% | 53,925 psi | 85% | 3848 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 90% | 57,638 psi | 90% | 3852 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,926 psi | 86% | 3871 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,681 psi | 89% | 3983 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 86% | 55,869 psi | 88% | 3885 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,693 psi | 84% | 3825 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 92% | 56,927 psi | 89% | 3917 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 56,376 psi | 88% | 3937 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,881 psi | 53% | 2539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,911 psi | 86% | 3852 fps | 97.8% |
| IMR 3031 | <<locked>> | 92% | 55,825 psi | 87% | 3924 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 56,927 psi | 89% | 3871 fps | 97.3% |
| IMR 4198 | <<locked>> | 86% | 56,304 psi | 88% | 3825 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 55,550 psi | 87% | 3911 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 90% | 55,579 psi | 87% | 3852 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 86% | 55,724 psi | 87% | 3832 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 92% | 55,796 psi | 87% | 3868 fps | 99.6% |
| Lovex S060 | <<locked>> | 92% | 56,289 psi | 88% | 3819 fps | 97.7% |
| Lovex S062 | <<locked>> | 96% | 56,318 psi | 88% | 3868 fps | 98.8% |
| Norma 200 | <<locked>> | 82% | 55,840 psi | 88% | 3819 fps | 100% |
| Norma 201 | <<locked>> | 92% | 54,839 psi | 86% | 3835 fps | 98.5% |
| Norma 202 | <<locked>> | 92% | 55,332 psi | 87% | 3852 fps | 99.8% |
| Norma 203B | <<locked>> | 96% | 56,985 psi | 89% | 3921 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 94% | 54,201 psi | 85% | 3862 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,753 psi | 87% | 3871 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 57,203 psi | 90% | 3845 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,098 psi | 53% | 2595 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,114 psi | 86% | 3845 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 53,998 psi | 85% | 3937 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,650 psi | 86% | 3980 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 90% | 55,172 psi | 86% | 3839 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 94% | 55,114 psi | 86% | 3829 fps | 98.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 57,406 psi | 90% | 3904 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,796 psi | 87% | 3868 fps | 99.6% |
| Shooters World Precision | <<locked>> | 96% | 56,318 psi | 88% | 3868 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,071 psi | 86% | 3796 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 55,695 psi | 87% | 3514 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,172 psi | 85% | 3839 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 56,260 psi | 88% | 3914 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 57,217 psi | 90% | 3885 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,955 psi | 86% | 3845 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 56,898 psi | 89% | 3802 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 56,971 psi | 89% | 3780 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 57,406 psi | 90% | 3894 fps | 99% |
| Somchem S335 | <<locked>> | 92% | 56,072 psi | 88% | 3786 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,070 psi | 85% | 3802 fps | 97.2% |
| Somchem S355 | <<locked>> | 98% | 54,143 psi | 85% | 3835 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 82% | 57,276 psi | 90% | 3757 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 56,217 psi | 88% | 3783 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 56,797 psi | 89% | 3789 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,128 psi | 85% | 3816 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,101 psi | 88% | 3825 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 56,202 psi | 88% | 3825 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 90% | 56,246 psi | 88% | 3852 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 94% | 54,534 psi | 85% | 3802 fps | 99.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,808 psi | 81% | 3727 fps | 97.6% |
| Winchester 748 | <<locked>> | 90% | 55,840 psi | 88% | 3904 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 92% | 55,056 psi | 86% | 3858 fps | 98% |
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% | 40,654 psi | 64% | 3494 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 52,779 psi | 83% | 3852 fps | 95.8% |
| Accurate 2460 | <<locked>> | 80% | 44,744 psi | 70% | 3602 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 32,895 psi | 52% | 3307 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 39,958 psi | 63% | 3514 fps | 96.7% |
| Accurate 4064 | <<locked>> | 82% | 33,431 psi | 52% | 3340 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 49,400 psi | 77% | 3645 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 49,734 psi | 78% | 3668 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 86% | 46,093 psi | 72% | 3675 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 53,911 psi | 84% | 3763 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 50,604 psi | 79% | 3740 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 49,864 psi | 78% | 3766 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,496 psi | 67% | 3560 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 38,319 psi | 60% | 3520 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,847 psi | 72% | 3753 fps | 95.6% |
| Alliant Power Pro 2000-MR | 84.1 gr | 92% | 52,692 psi | 83% | 3924 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 43,584 psi | 68% | 3619 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,180 psi | 72% | 3658 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,662 psi | 79% | 3789 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 44,222 psi | 69% | 3701 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,066 psi | 77% | 3609 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 52,982 psi | 83% | 3819 fps | 95.8% |
| Bofors RP3 | <<locked>> | 90% | 43,439 psi | 68% | 3615 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,669 psi | 65% | 3504 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 82% | 41,060 psi | 64% | 3556 fps | 95.8% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,805 psi | 76% | 3816 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 45,353 psi | 71% | 3665 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 46,586 psi | 73% | 3675 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 86% | 46,456 psi | 73% | 3691 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,221 psi | 66% | 3619 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,918 psi | 39% | 2287 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 44,918 psi | 70% | 3629 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 36,579 psi | 57% | 3491 fps | 98% |
| IMR 4064 | <<locked>> | 92% | 49,966 psi | 78% | 3724 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 46,789 psi | 73% | 3645 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 48,559 psi | 76% | 3760 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 82% | 42,496 psi | 67% | 3560 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 80% | 44,744 psi | 70% | 3602 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 35,969 psi | 56% | 3409 fps | 95.1% |
| Lovex S060 | <<locked>> | 86% | 46,499 psi | 73% | 3609 fps | 95.4% |
| Lovex S062 | <<locked>> | 88% | 43,178 psi | 68% | 3579 fps | 95.9% |
| Norma 200 | <<locked>> | 80% | 52,185 psi | 82% | 3753 fps | 100% |
| Norma 201 | <<locked>> | 84% | 41,858 psi | 66% | 3540 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 36,709 psi | 58% | 3422 fps | 96.3% |
| Norma 203B | <<locked>> | 90% | 46,586 psi | 73% | 3694 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 90% | 46,992 psi | 74% | 3704 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,472 psi | 76% | 3717 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 46,485 psi | 73% | 3619 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,063 psi | 39% | 2339 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,715 psi | 70% | 3625 fps | 97.6% |
| ReloadSwiss RS 52 | 79.8 gr | 90% | 50,256 psi | 79% | 3855 fps | 95.6% |
| ReloadSwiss RS 60 | 79.2 gr | 88% | 38,159 psi | 60% | 3550 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 39,972 psi | 63% | 3491 fps | 97% |
| Rottweil R 902 | <<locked>> | 86% | 42,438 psi | 67% | 3547 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 92% | 43,236 psi | 68% | 3599 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,969 psi | 56% | 3409 fps | 95.1% |
| Shooters World Precision | <<locked>> | 88% | 43,178 psi | 68% | 3579 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,529 psi | 74% | 3642 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 52,765 psi | 83% | 3468 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,517 psi | 79% | 3766 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,718 psi | 76% | 3753 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,862 psi | 73% | 3681 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,993 psi | 75% | 3698 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,261 psi | 60% | 3392 fps | 96.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,285 psi | 49% | 3182 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 43,018 psi | 67% | 3579 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 37,927 psi | 59% | 3389 fps | 97.6% |
| Somchem S341 | <<locked>> | 86% | 46,760 psi | 73% | 3645 fps | 95.3% |
| Somchem S355 | <<locked>> | 92% | 44,353 psi | 70% | 3619 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 53,766 psi | 84% | 3701 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 43,482 psi | 68% | 3530 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 38,363 psi | 60% | 3409 fps | 99% |
| Vihtavuori N135 | <<locked>> | 80% | 33,460 psi | 52% | 3333 fps | 97.9% |
| Vihtavuori N140 | <<locked>> | 80% | 34,737 psi | 54% | 3337 fps | 96% |
| Vihtavuori N150 | <<locked>> | 90% | 39,682 psi | 62% | 3465 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 82% | 42,424 psi | 66% | 3553 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 82% | 36,056 psi | 56% | 3373 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 44,860 psi | 70% | 3570 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 38,725 psi | 61% | 3510 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 44,237 psi | 69% | 3619 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 80 powders for .300 Weath. Mag. loaded with the .308 | 85gr | MAKER Tipped expanding. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 4,009 fps; across all powders the maximum-charge window runs from 2,539 fps to 4,009 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for .300 Weath. Mag. with the .308 | 85gr | MAKER Tipped expanding 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.