Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 90gr | Impala LWHV LS bullet and 77 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 70 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.
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>> | 82% | 54,375 psi | 85% | 3714 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,940 psi | 86% | 3743 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,201 psi | 87% | 3789 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 54,795 psi | 86% | 3786 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,288 psi | 85% | 3825 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 86% | 56,927 psi | 89% | 3855 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 90% | 54,520 psi | 85% | 3780 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,506 psi | 87% | 3799 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 84% | 56,536 psi | 89% | 3806 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,811 psi | 89% | 3973 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,027 psi | 86% | 3816 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,434 psi | 87% | 3839 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,592 psi | 86% | 3885 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,347 psi | 88% | 3940 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,917 psi | 67% | 3596 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,985 psi | 89% | 3848 fps | 98% |
| Bofors RP3 | <<locked>> | 90% | 56,347 psi | 88% | 3839 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,000 psi | 89% | 3789 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,753 psi | 87% | 3825 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,232 psi | 90% | 3940 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 90% | 56,913 psi | 89% | 3835 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 86% | 57,566 psi | 90% | 3875 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,607 psi | 86% | 3802 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,305 psi | 90% | 3898 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,607 psi | 56% | 2546 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,940 psi | 86% | 3806 fps | 98.9% |
| IMR 3031 | <<locked>> | 86% | 57,290 psi | 90% | 3878 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,450 psi | 90% | 3832 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 54,650 psi | 86% | 3809 fps | 97.5% |
| IMR 4895 | <<locked>> | 88% | 56,855 psi | 89% | 3881 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 84% | 55,506 psi | 87% | 3799 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 86% | 57,479 psi | 90% | 3839 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,941 psi | 88% | 3766 fps | 98.7% |
| Lovex S062 | <<locked>> | 88% | 54,288 psi | 85% | 3773 fps | 99.3% |
| Lovex S065 | <<locked>> | 96% | 57,392 psi | 90% | 3809 fps | 96.6% |
| Norma 201 | <<locked>> | 86% | 56,188 psi | 88% | 3806 fps | 99.4% |
| Norma 202 | <<locked>> | 86% | 56,275 psi | 88% | 3812 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,723 psi | 86% | 3819 fps | 98.5% |
| Norma URP | <<locked>> | 98% | 56,405 psi | 88% | 3871 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 88% | 55,172 psi | 86% | 3832 fps | 98.5% |
| Ramshot TAC | <<locked>> | 84% | 56,347 psi | 88% | 3796 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,927 psi | 88% | 3822 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,666 psi | 89% | 3789 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,100 psi | 57% | 2602 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,564 psi | 87% | 3911 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,709 psi | 87% | 3953 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,896 psi | 84% | 3829 fps | 97% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,159 psi | 90% | 3930 fps | 97.3% |
| Rottweil R 901 | <<locked>> | 84% | 57,130 psi | 90% | 3809 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,637 psi | 89% | 3799 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 92% | 56,101 psi | 88% | 3822 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,392 psi | 90% | 3809 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,479 psi | 90% | 3839 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,288 psi | 85% | 3773 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,305 psi | 90% | 3881 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,056 psi | 86% | 3766 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,419 psi | 87% | 3806 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,739 psi | 89% | 3740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,217 psi | 90% | 3724 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 57,493 psi | 90% | 3839 fps | 99.7% |
| Somchem S335 | <<locked>> | 86% | 56,724 psi | 89% | 3737 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,389 psi | 85% | 3760 fps | 98.4% |
| Somchem S355 | <<locked>> | 92% | 55,970 psi | 88% | 3819 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3881 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 56,260 psi | 88% | 3714 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,797 psi | 89% | 3724 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,970 psi | 88% | 3776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,869 psi | 89% | 3776 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,464 psi | 90% | 3793 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 96% | 55,143 psi | 86% | 3799 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 84% | 56,246 psi | 88% | 3802 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 88% | 55,506 psi | 87% | 3763 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,723 psi | 86% | 3802 fps | 97.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,369 psi | 74% | 3707 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,956 psi | 88% | 3770 fps | 99.4% |
| Winchester 748 | <<locked>> | 84% | 56,376 psi | 88% | 3855 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,622 psi | 87% | 3819 fps | 99% |
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% | 51,111 psi | 80% | 3652 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,455 psi | 71% | 3560 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,663 psi | 81% | 3720 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 42,772 psi | 67% | 3530 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 47,456 psi | 74% | 3675 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 47,268 psi | 74% | 3648 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 45,353 psi | 71% | 3576 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,066 psi | 77% | 3665 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 49,588 psi | 78% | 3688 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 46,369 psi | 73% | 3730 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,277 psi | 63% | 3474 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,076 psi | 68% | 3553 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 92% | 45,426 psi | 71% | 3668 fps | 95.2% |
| Alliant Reloder-17 | 82.4 gr | 84% | 40,190 psi | 63% | 3547 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 40,277 psi | 63% | 3524 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,673 psi | 73% | 3629 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 40,538 psi | 64% | 3484 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,662 psi | 79% | 3661 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,863 psi | 77% | 3684 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,185 psi | 83% | 3858 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 86% | 49,850 psi | 78% | 3688 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,674 psi | 75% | 3665 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 39,740 psi | 62% | 3461 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,729 psi | 69% | 3606 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 42% | 2293 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,455 psi | 71% | 3593 fps | 97% |
| IMR 3031 | <<locked>> | 80% | 47,268 psi | 74% | 3684 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 44,759 psi | 70% | 3556 fps | 95.7% |
| IMR 4831 | <<locked>> | 92% | 44,991 psi | 71% | 3596 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 44,063 psi | 69% | 3596 fps | 96% |
| IMR 8208 XBR | <<locked>> | 80% | 49,066 psi | 77% | 3665 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 80% | 47,195 psi | 74% | 3632 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 46,789 psi | 73% | 3573 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 42,583 psi | 67% | 3507 fps | 97% |
| Lovex S065 | <<locked>> | 92% | 50,836 psi | 80% | 3671 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,717 psi | 73% | 3602 fps | 98% |
| Norma 202 | <<locked>> | 80% | 46,731 psi | 73% | 3619 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 42,482 psi | 67% | 3537 fps | 95.5% |
| Norma URP | <<locked>> | 92% | 46,528 psi | 73% | 3658 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 42,148 psi | 66% | 3537 fps | 95.2% |
| Ramshot TAC | <<locked>> | 82% | 52,837 psi | 83% | 3720 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,965 psi | 77% | 3678 fps | 97.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,055 psi | 83% | 3717 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 42% | 2346 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,165 psi | 71% | 3675 fps | 95.5% |
| ReloadSwiss RS 60 | 78.4 gr | 80% | 37,188 psi | 58% | 3481 fps | 96.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 46,978 psi | 74% | 3681 fps | 95.1% |
| ReloadSwiss RS 70 | 93.6 gr | 94% | 49,777 psi | 78% | 3766 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,749 psi | 80% | 3684 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 44,483 psi | 70% | 3540 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 40,698 psi | 64% | 3478 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 50,836 psi | 80% | 3671 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,195 psi | 74% | 3632 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 42,583 psi | 67% | 3507 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 41,336 psi | 65% | 3520 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,080 psi | 75% | 3619 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,730 psi | 72% | 3596 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,268 psi | 74% | 3556 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,668 psi | 62% | 3366 fps | 99.2% |
| Somchem S321 | <<locked>> | 80% | 53,809 psi | 84% | 3770 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 47,355 psi | 74% | 3553 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 47,587 psi | 75% | 3615 fps | 97% |
| Somchem S355 | <<locked>> | 82% | 41,162 psi | 65% | 3484 fps | 95.7% |
| Somchem S365 | <<locked>> | 88% | 36,927 psi | 58% | 3448 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 52,953 psi | 83% | 3655 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,355 psi | 74% | 3553 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,656 psi | 68% | 3537 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,237 psi | 69% | 3527 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 36,840 psi | 58% | 3330 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 92% | 48,443 psi | 76% | 3658 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 49,356 psi | 77% | 3665 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 43,018 psi | 67% | 3501 fps | 99% |
| Vihtavuori N550 | <<locked>> | 92% | 48,153 psi | 75% | 3661 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 98% | 44,222 psi | 69% | 3635 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 40,001 psi | 63% | 3409 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 49,342 psi | 77% | 3714 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,542 psi | 71% | 3602 fps | 97.1% |
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 98 powders for .300 Norma Mag. loaded with the .308 | 90gr | Impala LWHV LS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,973 fps; across all powders the maximum-charge window runs from 2,546 fps to 3,973 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 70, Alliant Reloder-17 rank at the top here: for .300 Norma 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, Accurate 3100, 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.