Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 168gr | Nosler Custom Competition bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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 2495 | <<locked>> | 82% | 54,433 psi | 87% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,767 psi | 89% | 2884 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,301 psi | 85% | 2923 fps | 99.4% |
| Accurate 4064 | <<locked>> | 84% | 54,911 psi | 88% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,477 psi | 89% | 2976 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,042 psi | 88% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,852 psi | 85% | 2959 fps | 97.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,128 psi | 87% | 3005 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,201 psi | 87% | 3028 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,738 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,086 psi | 90% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,260 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,911 psi | 86% | 3005 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,753 psi | 89% | 3005 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,953 psi | 85% | 3005 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,053 psi | 80% | 2943 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,569 psi | 70% | 2858 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,563 psi | 86% | 3077 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,559 psi | 78% | 2923 fps | 96.6% |
| Bofors RP3 | <<locked>> | 84% | 52,968 psi | 85% | 2890 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,953 psi | 85% | 3005 fps | 97.7% |
| Bofors RP7 | <<locked>> | 90% | 55,999 psi | 90% | 2927 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 53,403 psi | 86% | 2907 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 54,128 psi | 87% | 2972 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 88% | 54,041 psi | 87% | 2933 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,910 psi | 85% | 2904 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,621 psi | 88% | 2943 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,317 psi | 87% | 3009 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 58% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,463 psi | 89% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,389 psi | 87% | 2887 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,693 psi | 86% | 2867 fps | 98.8% |
| IMR 4350 | <<locked>> | 92% | 53,577 psi | 86% | 2907 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,317 psi | 87% | 2904 fps | 98.8% |
| IMR 4831 | <<locked>> | 94% | 56,014 psi | 90% | 2969 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,998 psi | 87% | 2927 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,941 psi | 90% | 2943 fps | 96.3% |
| Lovex S060 | <<locked>> | 82% | 56,014 psi | 90% | 2871 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,563 psi | 87% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,302 psi | 87% | 2900 fps | 99.6% |
| Lovex S070 | <<locked>> | 92% | 55,550 psi | 89% | 2940 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,396 psi | 71% | 2769 fps | 98% |
| Norma 201 | <<locked>> | 82% | 55,898 psi | 90% | 2890 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,376 psi | 89% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,099 psi | 87% | 2956 fps | 97.5% |
| Norma MRP | <<locked>> | 98% | 52,562 psi | 84% | 3031 fps | 98.8% |
| Norma URP | <<locked>> | 92% | 54,288 psi | 87% | 2963 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,188 psi | 90% | 2966 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,837 psi | 83% | 2989 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 92% | 53,084 psi | 85% | 2963 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,369 psi | 74% | 2864 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,014 psi | 59% | 1873 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,447 psi | 86% | 2890 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,345 psi | 86% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,347 psi | 89% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,838 psi | 86% | 3025 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,569 psi | 68% | 2871 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 82% | 53,345 psi | 86% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,272 psi | 85% | 2890 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,679 psi | 88% | 2933 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 98% | 55,129 psi | 88% | 2992 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 55,999 psi | 90% | 2927 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,302 psi | 87% | 2900 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 54,563 psi | 87% | 2881 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,550 psi | 89% | 2940 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,549 psi | 87% | 2946 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,825 psi | 90% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,375 psi | 87% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,998 psi | 87% | 2851 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,650 psi | 88% | 2989 fps | 97.9% |
| Somchem S335 | <<locked>> | 82% | 56,362 psi | 90% | 2818 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 53,287 psi | 85% | 2887 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 53,534 psi | 86% | 2966 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,637 psi | 89% | 2966 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 82% | 53,490 psi | 86% | 2805 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,809 psi | 86% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,375 psi | 87% | 2858 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,304 psi | 90% | 2956 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,358 psi | 82% | 2884 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 84% | 55,376 psi | 89% | 2861 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,419 psi | 89% | 2959 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,159 psi | 90% | 3025 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,144 psi | 90% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,375 psi | 87% | 2976 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,310 psi | 73% | 2995 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,898 psi | 90% | 2927 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2959 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 2495 | <<locked>> | 80% | 51,140 psi | 82% | 2769 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,936 psi | 78% | 2772 fps | 97.3% |
| Accurate 3100 | <<locked>> | 88% | 35,375 psi | 57% | 2579 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 48,457 psi | 78% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,869 psi | 59% | 2631 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 80% | 45,687 psi | 73% | 2746 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 46,557 psi | 75% | 2841 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 98% | 50,604 psi | 81% | 2943 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,473 psi | 81% | 2966 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,166 psi | 74% | 2772 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,356 psi | 79% | 2841 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,926 psi | 58% | 2638 fps | 97.7% |
| Alliant Reloder-17 | 62.8 gr | 80% | 40,698 psi | 65% | 2769 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,062 psi | 69% | 2772 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,352 psi | 70% | 2822 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,382 psi | 42% | 2385 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,881 psi | 54% | 2618 fps | 95.2% |
| Alliant Reloder-26 | 67.6 gr | 84% | 32,256 psi | 52% | 2618 fps | 95.5% |
| Bofors RP15 | <<locked>> | 98% | 45,498 psi | 73% | 2864 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 46,398 psi | 74% | 2782 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,352 psi | 70% | 2822 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 41,031 psi | 66% | 2651 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 46,920 psi | 75% | 2792 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 38,725 psi | 62% | 2674 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 44,454 psi | 71% | 2756 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,446 psi | 54% | 2533 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,010 psi | 82% | 2887 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 40,466 psi | 65% | 2743 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 44% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,054 psi | 83% | 2858 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,051 psi | 77% | 2782 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,198 psi | 80% | 2808 fps | 98.3% |
| IMR 4350 | <<locked>> | 84% | 41,568 psi | 67% | 2680 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,235 psi | 68% | 2677 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 35,447 psi | 57% | 2582 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 50,647 psi | 81% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,489 psi | 84% | 2887 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 52,591 psi | 84% | 2818 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,225 psi | 77% | 2779 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,929 psi | 64% | 2631 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 38,101 psi | 61% | 2605 fps | 95.4% |
| Lovex S071 | <<locked>> | 94% | 36,521 psi | 59% | 2605 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 52,678 psi | 84% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,733 psi | 78% | 2828 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,048 psi | 71% | 2772 fps | 95% |
| Norma MRP | <<locked>> | 90% | 39,856 psi | 64% | 2776 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 36,608 psi | 59% | 2621 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 49,037 psi | 79% | 2851 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,356 psi | 78% | 2923 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 35,491 psi | 57% | 2605 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 43,047 psi | 69% | 2799 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,717 psi | 44% | 1677 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,905 psi | 75% | 2776 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,236 psi | 69% | 2825 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,492 psi | 59% | 2641 fps | 97.2% |
| ReloadSwiss RS 70 | 63.8 gr | 80% | 35,607 psi | 57% | 2648 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,697 psi | 64% | 2799 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 50,067 psi | 80% | 2792 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,700 psi | 70% | 2726 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 48,211 psi | 77% | 2818 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 92% | 45,049 psi | 72% | 2815 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 41,031 psi | 66% | 2651 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,929 psi | 64% | 2631 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 48,225 psi | 77% | 2779 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,101 psi | 61% | 2605 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,773 psi | 72% | 2779 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,214 psi | 84% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,063 psi | 72% | 2638 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,030 psi | 63% | 2572 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 44,657 psi | 72% | 2808 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 53,200 psi | 85% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,150 psi | 71% | 2730 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 33,011 psi | 53% | 2575 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 40,219 psi | 64% | 2680 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 50,285 psi | 81% | 2756 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,459 psi | 81% | 2769 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,061 psi | 67% | 2654 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,087 psi | 61% | 2628 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 42,090 psi | 67% | 2713 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 48,863 psi | 78% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,565 psi | 60% | 2628 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 28,877 psi | 46% | 2461 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,173 psi | 60% | 2595 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 38,870 psi | 62% | 2677 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,484 psi | 42% | 2464 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,243 psi | 84% | 2874 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,266 psi | 73% | 2779 fps | 95.5% |
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 99 powders for .300 Win. Mag. loaded with the .308 | 168gr | Nosler Custom Competition. Alliant Reloder-26 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,077 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 168.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 70, Alliant Reloder-26, Alliant Reloder-17 rank at the top here: for .300 Win. Mag. with the .308 | 168gr | Nosler Custom Competition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2225, Baschieri & Pellagri 109, Bofors RP30 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.