Load Specifications
Load data in caliber .300 WSM with .308 | 132gr | Brenneke TIG nature bullet and 97 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 ReloadSwiss RS 52.
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% | 55,637 psi | 87% | 3130 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,041 psi | 85% | 3150 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 57,058 psi | 89% | 3192 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,215 psi | 85% | 3199 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 56,753 psi | 89% | 3235 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 3179 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 82% | 55,071 psi | 86% | 3074 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,521 psi | 87% | 3100 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,839 psi | 86% | 3219 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 56,144 psi | 88% | 3219 fps | 99% |
| ADI AR 2219 | <<locked>> | 82% | 56,086 psi | 88% | 3202 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 57,609 psi | 90% | 3232 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 54,302 psi | 85% | 3166 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,680 psi | 87% | 3297 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,621 psi | 86% | 3340 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,463 psi | 87% | 3238 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,390 psi | 87% | 3140 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,217 psi | 88% | 3261 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,385 psi | 76% | 3186 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3369 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,607 psi | 86% | 3064 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,100 psi | 86% | 3235 fps | 98.6% |
| Bofors RP3 | <<locked>> | 96% | 56,101 psi | 88% | 3255 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,202 psi | 88% | 3166 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 57,000 psi | 89% | 3261 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,230 psi | 87% | 3307 fps | 99% |
| Hodgdon H322 | <<locked>> | 88% | 57,740 psi | 90% | 3228 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,550 psi | 87% | 3199 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 57,638 psi | 90% | 3268 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 98% | 55,013 psi | 86% | 3278 fps | 96% |
| Hodgdon H4198 | <<locked>> | 82% | 56,956 psi | 89% | 3130 fps | 100% |
| Hodgdon H4895 | <<locked>> | 90% | 55,332 psi | 87% | 3235 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,541 psi | 70% | 3054 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,476 psi | 85% | 3264 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,519 psi | 54% | 1985 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 55,753 psi | 87% | 3222 fps | 99.6% |
| IMR 3031 | <<locked>> | 94% | 56,594 psi | 89% | 3251 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 54,462 psi | 85% | 3182 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 98% | 57,696 psi | 90% | 3202 fps | 96.3% |
| IMR 4198 | <<locked>> | 84% | 55,564 psi | 87% | 3100 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 55,535 psi | 87% | 3192 fps | 95.8% |
| IMR 4895 | <<locked>> | 94% | 57,667 psi | 90% | 3301 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 90% | 57,609 psi | 90% | 3232 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 54,041 psi | 85% | 3156 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,215 psi | 85% | 3199 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,969 psi | 86% | 3150 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 54,839 psi | 86% | 3196 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 3176 fps | 97.1% |
| Norma 201 | <<locked>> | 92% | 56,840 psi | 89% | 3219 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 57,667 psi | 90% | 3228 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,332 psi | 87% | 3245 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 49,095 psi | 77% | 3173 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 94% | 56,391 psi | 88% | 3278 fps | 99.4% |
| Ramshot TAC | <<locked>> | 88% | 54,723 psi | 86% | 3182 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,128 psi | 85% | 3209 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,579 psi | 87% | 3179 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,925 psi | 55% | 2031 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 57,435 psi | 90% | 3222 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,491 psi | 85% | 3182 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,681 psi | 89% | 3337 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 56,579 psi | 89% | 3376 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,139 psi | 77% | 3199 fps | 97.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,111 psi | 79% | 3225 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 90% | 57,595 psi | 90% | 3205 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 57,450 psi | 90% | 3219 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 55,637 psi | 87% | 3238 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,070 psi | 85% | 3176 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,215 psi | 85% | 3199 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,839 psi | 86% | 3196 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 57,363 psi | 90% | 3186 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,449 psi | 88% | 3212 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,317 psi | 85% | 3251 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,420 psi | 88% | 3166 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,768 psi | 89% | 3219 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 57,072 psi | 89% | 3245 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,477 psi | 87% | 3114 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,651 psi | 87% | 3107 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 55,637 psi | 87% | 3215 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 54,592 psi | 86% | 3107 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,289 psi | 88% | 3212 fps | 99.4% |
| Somchem S355 | <<locked>> | 98% | 56,188 psi | 88% | 3241 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,511 psi | 68% | 3110 fps | 99.1% |
| Unknown powderᴾ | <<locked>> | 100% | 53,896 psi | 84% | 3248 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 82% | 56,057 psi | 88% | 3028 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 57,450 psi | 90% | 3117 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 54,723 psi | 86% | 3094 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,768 psi | 89% | 3186 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 57,334 psi | 90% | 3192 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,691 psi | 79% | 3110 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,621 psi | 86% | 3219 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 88% | 57,537 psi | 90% | 3245 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 57,072 psi | 89% | 3222 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,781 psi | 86% | 3271 fps | 98.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,910 psi | 83% | 3163 fps | 99.5% |
| Winchester 748 | <<locked>> | 86% | 55,158 psi | 86% | 3238 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,013 psi | 86% | 3278 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,940 psi | 86% | 3222 fps | 99.6% |
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% | 42,975 psi | 67% | 2920 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,108 psi | 74% | 3031 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 35,186 psi | 55% | 2802 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,712 psi | 64% | 2949 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 33,301 psi | 52% | 2776 fps | 98.4% |
| Accurate 4350 | <<locked>> | 96% | 42,627 psi | 67% | 3045 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 80% | 51,750 psi | 81% | 3022 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,156 psi | 82% | 3048 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,726 psi | 62% | 2917 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 38,334 psi | 60% | 2864 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 52,562 psi | 82% | 3146 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,829 psi | 66% | 2940 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 41,046 psi | 64% | 2946 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,646 psi | 76% | 3166 fps | 98.9% |
| Alliant Power Pro 2000-MR | 60.4 gr | 84% | 41,336 psi | 65% | 3054 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,866 psi | 52% | 2762 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,689 psi | 76% | 3035 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 37,913 psi | 59% | 2890 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,103 psi | 63% | 2995 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 88% | 37,376 psi | 59% | 2959 fps | 96% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,039 psi | 80% | 3012 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,771 psi | 65% | 2976 fps | 95.8% |
| Bofors RP3 | <<locked>> | 82% | 34,374 psi | 54% | 2812 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,830 psi | 69% | 2943 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,118 psi | 63% | 2946 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,367 psi | 70% | 3104 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 80% | 44,295 psi | 69% | 3002 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,721 psi | 81% | 3136 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 43,874 psi | 69% | 3012 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 51,024 psi | 80% | 3202 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 53,490 psi | 84% | 3074 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 40,030 psi | 63% | 2933 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 36,593 psi | 57% | 2874 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,881 psi | 53% | 2825 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 40% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,607 psi | 56% | 2805 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 35,752 psi | 56% | 2864 fps | 99.7% |
| IMR 4064 | <<locked>> | 84% | 37,521 psi | 59% | 2838 fps | 95.1% |
| IMR 4166 Enduron | <<locked>> | 96% | 54,288 psi | 85% | 3143 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,342 psi | 77% | 3005 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,982 psi | 81% | 3130 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 36,376 psi | 57% | 2867 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 41,829 psi | 66% | 2940 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 46,920 psi | 74% | 3031 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 38,101 psi | 60% | 2890 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 40,219 psi | 63% | 2861 fps | 96.6% |
| Lovex S062 | <<locked>> | 80% | 34,954 psi | 55% | 2789 fps | 96.3% |
| Lovex S065 | <<locked>> | 96% | 47,747 psi | 75% | 3061 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 38,711 psi | 61% | 2867 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 38,957 psi | 61% | 2887 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 37,246 psi | 58% | 2877 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 42,888 psi | 67% | 3048 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 82% | 37,043 psi | 58% | 2890 fps | 95.2% |
| Ramshot TAC | <<locked>> | 82% | 44,817 psi | 70% | 2995 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,031 psi | 64% | 2949 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,310 psi | 71% | 2992 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,715 psi | 40% | 1818 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,152 psi | 74% | 3045 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,995 psi | 80% | 3120 fps | 95.6% |
| ReloadSwiss RS 52 | 57.1 gr | 82% | 39,479 psi | 62% | 2999 fps | 95.6% |
| ReloadSwiss RS 60 | 56.6 gr | 80% | 30,255 psi | 47% | 2762 fps | 95.3% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,641 psi | 67% | 3068 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,746 psi | 73% | 3153 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 42,351 psi | 66% | 2933 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 36,869 psi | 58% | 2815 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 34,650 psi | 54% | 2815 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 47,747 psi | 75% | 3061 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,101 psi | 60% | 2890 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 34,954 psi | 55% | 2789 fps | 96.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,806 psi | 78% | 3061 fps | 99.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,823 psi | 83% | 3153 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 38,566 psi | 60% | 2933 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,792 psi | 78% | 3061 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,728 psi | 67% | 2956 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,406 psi | 60% | 2881 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,538 psi | 64% | 2844 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,330 psi | 52% | 2687 fps | 98.9% |
| Somchem S321 | <<locked>> | 80% | 45,078 psi | 71% | 3025 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 39,900 psi | 63% | 2841 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 39,552 psi | 62% | 2894 fps | 96.2% |
| Somchem S355 | <<locked>> | 84% | 35,766 psi | 56% | 2828 fps | 95.6% |
| Somchem S365 | <<locked>> | 90% | 31,169 psi | 49% | 2789 fps | 95.1% |
| Unknown powder | <<locked>> | 94% | 43,918 psi | 69% | 3054 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 52,866 psi | 83% | 2986 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 45,034 psi | 71% | 2920 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,956 psi | 59% | 2795 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,984 psi | 56% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,289 psi | 57% | 2805 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 84% | 30,255 psi | 47% | 2661 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 92% | 41,452 psi | 65% | 2969 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 43,990 psi | 69% | 3002 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 80% | 36,100 psi | 57% | 2822 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 92% | 41,568 psi | 65% | 3012 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,041 psi | 55% | 2785 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 44,382 psi | 70% | 3048 fps | 99.3% |
| Winchester 760 | <<locked>> | 96% | 51,024 psi | 80% | 3202 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,239 psi | 74% | 3087 fps | 98.7% |
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 112 powders for .300 WSM loaded with the .308 | 132gr | Brenneke TIG nature. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,376 fps; across all powders the maximum-charge window runs from 1,985 fps to 3,376 fps. Accurate 4350 gives the best case fill at 100 %, and 112 of the 112 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. The 132.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 52 rank at the top here: for .300 WSM with the .308 | 132gr | Brenneke TIG nature they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.