Load Specifications
Load data in caliber .300 WSM with .308 | 150gr | Woodleigh PP SN bullet and 96 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 60 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>> | 84% | 56,507 psi | 89% | 2959 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,506 psi | 87% | 2982 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,477 psi | 87% | 3038 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,738 psi | 87% | 2982 fps | 96.8% |
| Accurate 4064 | <<locked>> | 90% | 55,680 psi | 87% | 3035 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,666 psi | 87% | 3117 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 55,622 psi | 87% | 3061 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 56,695 psi | 89% | 3061 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,752 psi | 86% | 3012 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,767 psi | 87% | 2992 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,506 psi | 87% | 3186 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,029 psi | 89% | 3087 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,421 psi | 90% | 3110 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,710 psi | 89% | 3179 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,346 psi | 85% | 3156 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,741 psi | 64% | 2894 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 3064 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,666 psi | 87% | 3077 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 54,128 psi | 85% | 3048 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,740 psi | 90% | 3074 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,333 psi | 88% | 2995 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,259 psi | 85% | 3041 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,144 psi | 88% | 3146 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 54,534 psi | 85% | 2995 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,056 psi | 86% | 3061 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 94% | 56,492 psi | 89% | 3140 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 98% | 56,768 psi | 89% | 3097 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 56,173 psi | 88% | 3074 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,895 psi | 83% | 3041 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,028 psi | 88% | 3110 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,347 psi | 87% | 3146 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 56% | 1890 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,391 psi | 88% | 3061 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 54,665 psi | 86% | 3035 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,506 psi | 87% | 3035 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,839 psi | 86% | 3002 fps | 97.4% |
| IMR 4350 | <<locked>> | 98% | 54,491 psi | 85% | 3038 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,970 psi | 88% | 3048 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,763 psi | 78% | 3002 fps | 98.9% |
| IMR 4895 | <<locked>> | 88% | 55,245 psi | 87% | 3087 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 54,752 psi | 86% | 3012 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,767 psi | 87% | 3038 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,085 psi | 86% | 2986 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 56,057 psi | 88% | 3041 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,376 psi | 87% | 3038 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 56,362 psi | 88% | 3074 fps | 97.9% |
| Norma 201 | <<locked>> | 86% | 54,346 psi | 85% | 3005 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,114 psi | 86% | 3012 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,652 psi | 89% | 3094 fps | 100% |
| Norma URP | <<locked>> | 98% | 54,433 psi | 85% | 3100 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 57,537 psi | 90% | 3123 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,985 psi | 89% | 3153 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 54,911 psi | 86% | 3028 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,737 psi | 86% | 3051 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,448 psi | 87% | 3012 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,143 psi | 57% | 1936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,595 psi | 90% | 3045 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,172 psi | 86% | 3038 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,433 psi | 85% | 3123 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 53,969 psi | 85% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,288 psi | 87% | 3136 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,781 psi | 86% | 3166 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 55,288 psi | 87% | 2989 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,882 psi | 86% | 3005 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,653 psi | 90% | 3094 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,740 psi | 90% | 3074 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,376 psi | 87% | 3038 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,767 psi | 87% | 3038 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,057 psi | 88% | 3041 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,362 psi | 88% | 3074 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,738 psi | 87% | 3104 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,188 psi | 90% | 3064 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,667 psi | 90% | 3087 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,825 psi | 87% | 2943 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,072 psi | 88% | 2940 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,666 psi | 87% | 2989 fps | 97.5% |
| Somchem S321 | <<locked>> | 82% | 55,956 psi | 88% | 3045 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,172 psi | 86% | 2940 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,782 psi | 89% | 3054 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 54,244 psi | 85% | 3038 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,591 psi | 82% | 3104 fps | 100% |
| Unknown powder | <<locked>> | 96% | 55,579 psi | 87% | 3114 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 82% | 54,534 psi | 85% | 2894 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,622 psi | 87% | 2927 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,737 psi | 86% | 2969 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,650 psi | 86% | 2976 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,535 psi | 87% | 3018 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,275 psi | 88% | 3081 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 82% | 54,302 psi | 85% | 3018 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,534 psi | 85% | 3002 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,347 psi | 88% | 3130 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,744 psi | 70% | 2972 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,653 psi | 90% | 3077 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,796 psi | 87% | 3071 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,492 psi | 89% | 3140 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,419 psi | 57% | 2887 fps | 98.5% |
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% | 50,053 psi | 78% | 2864 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,844 psi | 67% | 2782 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,443 psi | 76% | 2927 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 48,834 psi | 77% | 2867 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,480 psi | 63% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 36,535 psi | 57% | 2749 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 46,151 psi | 72% | 2897 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 39,088 psi | 61% | 2730 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,196 psi | 76% | 2904 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 48,805 psi | 76% | 2890 fps | 100% |
| Alliant Power Pro 2000-MR | 59.2 gr | 80% | 42,061 psi | 66% | 2923 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,001 psi | 61% | 2756 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,800 psi | 66% | 2825 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 36,521 psi | 57% | 2766 fps | 95.8% |
| Alliant Reloder-17 | 58.3 gr | 80% | 33,692 psi | 53% | 2713 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,647 psi | 50% | 2654 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,941 psi | 58% | 2851 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,397 psi | 71% | 2894 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 38,740 psi | 61% | 2759 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 47,848 psi | 75% | 2900 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,705 psi | 78% | 2890 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,253 psi | 74% | 2923 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,315 psi | 82% | 3081 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 51,039 psi | 80% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,479 psi | 62% | 2762 fps | 96% |
| Hodgdon H414 | <<locked>> | 88% | 45,919 psi | 72% | 2949 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 94% | 50,183 psi | 79% | 2982 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 46,572 psi | 73% | 2907 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,589 psi | 50% | 2598 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,161 psi | 63% | 2822 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 92% | 48,051 psi | 75% | 3012 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 41% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,423 psi | 65% | 2785 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 42,569 psi | 67% | 2831 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,421 psi | 60% | 2707 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 45,774 psi | 72% | 2835 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 47,964 psi | 75% | 2923 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,572 psi | 73% | 2877 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 36,318 psi | 57% | 2726 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 42,844 psi | 67% | 2858 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 48,196 psi | 76% | 2904 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 45,542 psi | 71% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,006 psi | 72% | 2828 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 41,191 psi | 65% | 2776 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 40,669 psi | 64% | 2762 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 43,874 psi | 69% | 2848 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,208 psi | 71% | 2844 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 45,556 psi | 71% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,205 psi | 65% | 2812 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 36,782 psi | 58% | 2749 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 40,828 psi | 64% | 2822 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 41,060 psi | 64% | 2854 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,109 psi | 75% | 2907 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,805 psi | 75% | 2930 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,880 psi | 81% | 2953 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,861 psi | 42% | 1732 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,012 psi | 85% | 2992 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,627 psi | 67% | 2805 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,208 psi | 69% | 2936 fps | 98.4% |
| ReloadSwiss RS 60 | 58.3 gr | 80% | 35,839 psi | 56% | 2789 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,376 psi | 57% | 2766 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 38,841 psi | 61% | 2835 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 49,139 psi | 77% | 2887 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,018 psi | 67% | 2792 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 36,448 psi | 57% | 2700 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 47,848 psi | 75% | 2900 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,669 psi | 64% | 2762 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,542 psi | 71% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,191 psi | 65% | 2776 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 43,874 psi | 69% | 2848 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,376 psi | 59% | 2749 fps | 97.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,470 psi | 73% | 2881 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,599 psi | 70% | 2858 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,470 psi | 73% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,769 psi | 61% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 45,948 psi | 72% | 2822 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 52,257 psi | 82% | 2986 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,093 psi | 72% | 2795 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,253 psi | 72% | 2877 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 37,217 psi | 58% | 2707 fps | 97.7% |
| Somchem S365 | <<locked>> | 80% | 27,064 psi | 42% | 2516 fps | 95% |
| Unknown powder | <<locked>> | 84% | 37,478 psi | 59% | 2756 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 51,358 psi | 80% | 2848 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,816 psi | 69% | 2740 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,598 psi | 67% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,540 psi | 67% | 2776 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,676 psi | 50% | 2549 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 84% | 37,565 psi | 59% | 2733 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 50,836 psi | 80% | 2959 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,264 psi | 66% | 2795 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 37,971 psi | 60% | 2772 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 34,345 psi | 54% | 2740 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,343 psi | 49% | 2552 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 52,040 psi | 82% | 3012 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 45,919 psi | 72% | 2949 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,024 psi | 50% | 2746 fps | 96.3% |
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 115 powders for .300 WSM loaded with the .308 | 150gr | Woodleigh PP SN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,186 fps; across all powders the maximum-charge window runs from 1,890 fps to 3,186 fps. Accurate 3100 gives the best case fill at 100 %, and 115 of the 115 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 60, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 150gr | Woodleigh PP SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.