Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 RCM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.0
Load data in caliber .300 RCM with .308 | 150gr | Peregrine Glider GRM bullet and 96 powders. The key underlying parameters are shown in the table above.
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% | 57,377 psi | 90% | 2913 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 57,551 psi | 90% | 3018 fps | 99.2% |
| Accurate 2460 | <<locked>> | 86% | 55,999 psi | 88% | 2940 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,404 psi | 85% | 2920 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,867 psi | 84% | 2946 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 54,346 psi | 85% | 2963 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,876 psi | 73% | 2913 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 84% | 57,014 psi | 89% | 2858 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 57,479 psi | 90% | 2884 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,637 psi | 89% | 3009 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 98% | 57,580 psi | 90% | 2999 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 54,215 psi | 85% | 2930 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,869 psi | 88% | 2963 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 55,883 psi | 88% | 2943 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 57,363 psi | 90% | 3071 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,188 psi | 88% | 3120 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,724 psi | 89% | 3018 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 57,246 psi | 90% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 57,725 psi | 90% | 3045 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,485 psi | 73% | 2917 fps | 97.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,998 psi | 85% | 3081 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,362 psi | 88% | 2854 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,695 psi | 89% | 3022 fps | 99% |
| Bofors RP3 | <<locked>> | 98% | 57,363 psi | 90% | 3035 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,491 psi | 85% | 2897 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,650 psi | 86% | 2989 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,942 psi | 89% | 3091 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 86% | 56,710 psi | 89% | 2966 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,983 psi | 85% | 2936 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 55,158 psi | 86% | 2989 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 92% | 57,203 psi | 90% | 3022 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,482 psi | 67% | 2795 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 56,072 psi | 88% | 3051 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,534 psi | 54% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,143 psi | 86% | 2969 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 56,246 psi | 88% | 3002 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 56,855 psi | 89% | 2979 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,317 psi | 85% | 2907 fps | 96% |
| IMR 4198 | <<locked>> | 86% | 57,566 psi | 90% | 2881 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2979 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,744 psi | 70% | 2854 fps | 97% |
| IMR 4895 | <<locked>> | 94% | 55,477 psi | 87% | 3022 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 90% | 55,869 psi | 88% | 2963 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 55,869 psi | 88% | 2946 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,680 psi | 87% | 2982 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,710 psi | 89% | 2936 fps | 99.6% |
| Lovex S062 | <<locked>> | 96% | 56,376 psi | 88% | 2979 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2910 fps | 97% |
| Norma 200 | <<locked>> | 82% | 56,710 psi | 89% | 2887 fps | 100% |
| Norma 201 | <<locked>> | 92% | 55,071 psi | 86% | 2949 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 55,651 psi | 87% | 2959 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,811 psi | 89% | 3031 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 46,731 psi | 73% | 2904 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 94% | 53,737 psi | 84% | 2999 fps | 99.3% |
| Ramshot TAC | <<locked>> | 90% | 56,492 psi | 89% | 2972 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,666 psi | 87% | 2995 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 57,319 psi | 90% | 2966 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,838 psi | 55% | 1841 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,448 psi | 87% | 2946 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 56,057 psi | 88% | 2972 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,172 psi | 85% | 3054 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,983 psi | 85% | 3094 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,717 psi | 73% | 2930 fps | 97.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,848 psi | 75% | 2953 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 90% | 55,666 psi | 87% | 2933 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,201 psi | 87% | 2943 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 56,869 psi | 89% | 3022 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2910 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,680 psi | 87% | 2982 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 56,376 psi | 88% | 2979 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,521 psi | 87% | 2917 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,913 psi | 89% | 2598 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,737 psi | 86% | 2943 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,695 psi | 87% | 3038 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,940 psi | 86% | 2897 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,331 psi | 85% | 2946 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,940 psi | 86% | 2976 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 57,290 psi | 90% | 2897 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 57,246 psi | 90% | 2890 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 57,188 psi | 90% | 2995 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 56,275 psi | 88% | 2894 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,983 psi | 85% | 2943 fps | 99.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 57,551 psi | 90% | 3022 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,466 psi | 65% | 2848 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 88% | 57,101 psi | 89% | 2867 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 57,290 psi | 90% | 2881 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,491 psi | 85% | 2913 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,086 psi | 88% | 2933 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2949 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,501 psi | 78% | 2910 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 90% | 56,637 psi | 89% | 2966 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 54,230 psi | 85% | 2927 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,283 psi | 76% | 2907 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,589 psi | 79% | 2897 fps | 99.4% |
| Winchester 748 | <<locked>> | 90% | 55,985 psi | 88% | 3012 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,723 psi | 86% | 2986 fps | 99.7% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,843 psi | 66% | 2674 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 53,795 psi | 84% | 2956 fps | 98.8% |
| Accurate 2460 | <<locked>> | 80% | 45,571 psi | 71% | 2776 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 33,866 psi | 53% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,799 psi | 64% | 2723 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 32,068 psi | 50% | 2543 fps | 98.6% |
| Accurate 4350 | <<locked>> | 96% | 40,408 psi | 63% | 2785 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 50,604 psi | 79% | 2766 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,981 psi | 80% | 2789 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,421 psi | 60% | 2671 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 37,173 psi | 58% | 2625 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 50,647 psi | 79% | 2877 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,524 psi | 64% | 2690 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 39,668 psi | 62% | 2697 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,992 psi | 74% | 2900 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 39,885 psi | 63% | 2802 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,618 psi | 50% | 2526 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,282 psi | 74% | 2776 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,695 psi | 57% | 2651 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,624 psi | 61% | 2746 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,839 psi | 56% | 2710 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,588 psi | 78% | 2756 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,030 psi | 63% | 2723 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 33,083 psi | 52% | 2579 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,569 psi | 67% | 2690 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,711 psi | 61% | 2703 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,496 psi | 67% | 2835 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 80% | 46,485 psi | 73% | 2808 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,050 psi | 74% | 2828 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 42,105 psi | 66% | 2759 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 38,696 psi | 61% | 2684 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,056 psi | 55% | 2631 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,664 psi | 54% | 2641 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 40% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,463 psi | 59% | 2641 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 37,652 psi | 59% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,622 psi | 57% | 2605 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 50,937 psi | 80% | 2851 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 48,312 psi | 76% | 2749 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 53,476 psi | 84% | 2923 fps | 95.7% |
| IMR 4831 | <<locked>> | 96% | 38,957 psi | 61% | 2736 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 35,085 psi | 55% | 2625 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,524 psi | 64% | 2690 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 45,223 psi | 71% | 2776 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 36,637 psi | 57% | 2648 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 39,102 psi | 61% | 2618 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 33,794 psi | 53% | 2552 fps | 96.5% |
| Lovex S065 | <<locked>> | 96% | 45,934 psi | 72% | 2802 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 53,345 psi | 84% | 2841 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,536 psi | 59% | 2628 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 37,637 psi | 59% | 2644 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 36,042 psi | 56% | 2638 fps | 95.8% |
| Norma URP | <<locked>> | 96% | 41,002 psi | 64% | 2792 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 35,534 psi | 56% | 2644 fps | 95.2% |
| Ramshot TAC | <<locked>> | 82% | 43,163 psi | 68% | 2740 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,523 psi | 62% | 2703 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,048 psi | 69% | 2743 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,643 psi | 40% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,542 psi | 71% | 2785 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,950 psi | 77% | 2858 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,898 psi | 59% | 2746 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,254 psi | 46% | 2533 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 40,524 psi | 64% | 2805 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,527 psi | 70% | 2884 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 41,234 psi | 65% | 2687 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 35,607 psi | 56% | 2575 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 33,170 psi | 52% | 2575 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,934 psi | 72% | 2802 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,637 psi | 57% | 2648 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 33,794 psi | 53% | 2552 fps | 96.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,341 psi | 76% | 2802 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 54,215 psi | 85% | 2562 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,024 psi | 80% | 2884 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,838 psi | 55% | 2635 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,153 psi | 75% | 2795 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,133 psi | 64% | 2707 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,941 psi | 58% | 2635 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,175 psi | 61% | 2598 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,111 psi | 50% | 2454 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 43,540 psi | 68% | 2772 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 38,769 psi | 61% | 2605 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 38,174 psi | 60% | 2654 fps | 96.3% |
| Somchem S355 | <<locked>> | 84% | 34,418 psi | 54% | 2589 fps | 95.8% |
| Somchem S365 | <<locked>> | 90% | 29,892 psi | 47% | 2556 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 44,512 psi | 70% | 2680 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,378 psi | 62% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,534 psi | 54% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,665 psi | 56% | 2579 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 28,616 psi | 45% | 2418 fps | 95% |
| Vihtavuori N160 | <<locked>> | 94% | 40,364 psi | 63% | 2736 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 40,379 psi | 63% | 2684 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 34,185 psi | 54% | 2559 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 94% | 39,479 psi | 62% | 2736 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,649 psi | 53% | 2549 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 39,479 psi | 62% | 2726 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,274 psi | 57% | 2638 fps | 96.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 96 powders for .300 RCM loaded with the .308 | 150gr | Peregrine Glider GRM. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,798 fps to 3,120 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.