Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 182gr | CutEdge MTAC bullet and 96 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 Hodgdon Superformance.
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% | 52,997 psi | 85% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,926 psi | 88% | 2759 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,938 psi | 83% | 2792 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 53,534 psi | 86% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,447 psi | 87% | 2848 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 54,346 psi | 87% | 2936 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 54,215 psi | 87% | 2776 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,898 psi | 90% | 2894 fps | 98.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,316 psi | 85% | 2884 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,403 psi | 86% | 2897 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,810 psi | 88% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,129 psi | 88% | 2822 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,564 psi | 89% | 2907 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,982 psi | 85% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,897 psi | 88% | 2877 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,967 psi | 83% | 2877 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2815 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,743 psi | 69% | 2736 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,359 psi | 84% | 2946 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,659 psi | 76% | 2802 fps | 97% |
| Bofors RP3 | <<locked>> | 86% | 55,593 psi | 89% | 2815 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,967 psi | 83% | 2877 fps | 98% |
| Bofors RP7 | <<locked>> | 90% | 55,172 psi | 88% | 2802 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 56,246 psi | 90% | 2835 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 53,200 psi | 85% | 2848 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 53,185 psi | 85% | 2805 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 98% | 53,417 psi | 86% | 2828 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,028 psi | 90% | 2871 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,709 psi | 89% | 2828 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,853 psi | 86% | 2815 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 53,330 psi | 86% | 2881 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 58% | 1739 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,679 psi | 88% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,809 psi | 86% | 2759 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,420 psi | 90% | 2795 fps | 99.4% |
| IMR 4350 | <<locked>> | 94% | 56,072 psi | 90% | 2831 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,534 psi | 86% | 2776 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 55,056 psi | 88% | 2841 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,084 psi | 85% | 2795 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,361 psi | 89% | 2825 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,836 psi | 82% | 2854 fps | 96.3% |
| Lovex S060 | <<locked>> | 82% | 55,332 psi | 89% | 2746 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,780 psi | 86% | 2753 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,432 psi | 86% | 2772 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 54,665 psi | 88% | 2815 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,062 psi | 69% | 2644 fps | 98.2% |
| Norma 201 | <<locked>> | 82% | 54,940 psi | 88% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,724 psi | 89% | 2756 fps | 100% |
| Norma 203B | <<locked>> | 84% | 54,375 psi | 87% | 2805 fps | 100% |
| Norma 204 | <<locked>> | 92% | 53,287 psi | 85% | 2831 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2963 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 53,417 psi | 86% | 2835 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,288 psi | 89% | 2835 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,894 psi | 82% | 2867 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 94% | 55,840 psi | 90% | 2890 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,295 psi | 73% | 2743 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,767 psi | 59% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,188 psi | 90% | 2818 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 56,275 psi | 90% | 2890 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,420 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,404 psi | 87% | 2871 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,939 psi | 85% | 2897 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,452 psi | 66% | 2749 fps | 97% |
| Rottweil R 902 | <<locked>> | 84% | 55,767 psi | 89% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,738 psi | 89% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,780 psi | 86% | 2805 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 54,085 psi | 87% | 2864 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 90% | 55,172 psi | 88% | 2802 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,432 psi | 86% | 2772 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 53,780 psi | 86% | 2753 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,665 psi | 88% | 2815 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,809 psi | 86% | 2818 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,998 psi | 88% | 2795 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,941 psi | 90% | 2694 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,519 psi | 86% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,040 psi | 85% | 2726 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,606 psi | 86% | 2861 fps | 98.2% |
| Somchem S335 | <<locked>> | 82% | 55,535 psi | 89% | 2690 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,695 psi | 89% | 2805 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,535 psi | 89% | 2802 fps | 96.5% |
| Somchem S365 | <<locked>> | 96% | 56,057 psi | 90% | 2884 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,737 psi | 88% | 2841 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 84% | 56,159 psi | 90% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,113 psi | 85% | 2694 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,606 psi | 86% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,579 psi | 89% | 2831 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,357 psi | 81% | 2759 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 54,578 psi | 88% | 2736 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,563 psi | 87% | 2835 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2890 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2953 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,158 psi | 88% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,447 psi | 86% | 2848 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,237 psi | 71% | 2871 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,940 psi | 88% | 2799 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,114 psi | 88% | 2838 fps | 98.2% |
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% | 49,530 psi | 79% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,008 psi | 77% | 2648 fps | 97.7% |
| Accurate 3100 | <<locked>> | 88% | 34,142 psi | 55% | 2457 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 47,007 psi | 75% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,737 psi | 57% | 2507 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 98% | 50,575 psi | 81% | 2871 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 44,991 psi | 72% | 2625 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 42,743 psi | 69% | 2661 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 49,879 psi | 80% | 2822 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,705 psi | 80% | 2835 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,426 psi | 73% | 2648 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,515 psi | 78% | 2717 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,186 psi | 56% | 2523 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,740 psi | 64% | 2644 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,395 psi | 68% | 2657 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,409 psi | 68% | 2700 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,396 psi | 41% | 2270 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 92% | 32,924 psi | 53% | 2503 fps | 95.6% |
| Alliant Reloder-26 | 64 gr | 84% | 31,227 psi | 50% | 2500 fps | 95.8% |
| Bofors RP15 | <<locked>> | 96% | 41,785 psi | 67% | 2687 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 45,440 psi | 73% | 2657 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,409 psi | 68% | 2700 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 40,045 psi | 64% | 2530 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 45,919 psi | 74% | 2667 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,000 psi | 61% | 2559 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 80% | 40,988 psi | 66% | 2582 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 49,951 psi | 80% | 2772 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 48,776 psi | 78% | 2753 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,576 psi | 52% | 2415 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,256 psi | 81% | 2762 fps | 100% |
| Hodgdon Superformance | 64.4 gr | 82% | 39,639 psi | 64% | 2628 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 43% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,314 psi | 82% | 2730 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,297 psi | 76% | 2657 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,588 psi | 80% | 2687 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 38,319 psi | 61% | 2513 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,655 psi | 67% | 2562 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 34,461 psi | 55% | 2464 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 49,777 psi | 80% | 2743 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,573 psi | 78% | 2710 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 47,326 psi | 76% | 2789 fps | 95.3% |
| Lovex S060 | <<locked>> | 80% | 51,953 psi | 83% | 2694 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,326 psi | 76% | 2651 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,899 psi | 62% | 2510 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 37,260 psi | 60% | 2490 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 32,996 psi | 53% | 2431 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 51,547 psi | 83% | 2710 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,504 psi | 84% | 2710 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,877 psi | 77% | 2703 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,279 psi | 69% | 2654 fps | 95.5% |
| Norma MRP | <<locked>> | 88% | 36,318 psi | 58% | 2595 fps | 95% |
| Norma URP | <<locked>> | 80% | 35,853 psi | 57% | 2510 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 80% | 48,196 psi | 77% | 2726 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,253 psi | 76% | 2802 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 34,650 psi | 56% | 2490 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 96% | 39,044 psi | 63% | 2615 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 44% | 1591 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,137 psi | 74% | 2654 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,373 psi | 84% | 2831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,322 psi | 68% | 2700 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,549 psi | 57% | 2526 fps | 97.5% |
| ReloadSwiss RS 70 | 60.4 gr | 80% | 34,766 psi | 56% | 2533 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,638 psi | 62% | 2680 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 49,066 psi | 79% | 2664 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,772 psi | 69% | 2605 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 47,442 psi | 76% | 2700 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 41,321 psi | 66% | 2638 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,045 psi | 64% | 2530 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,899 psi | 62% | 2510 fps | 97.5% |
| Shooters World Precision | <<locked>> | 80% | 47,326 psi | 76% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,260 psi | 60% | 2490 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,976 psi | 71% | 2657 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,445 psi | 82% | 2740 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,649 psi | 84% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,396 psi | 71% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,145 psi | 61% | 2457 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,930 psi | 66% | 2631 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 52,185 psi | 84% | 2644 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,076 psi | 69% | 2602 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 51,909 psi | 83% | 2746 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 32,227 psi | 52% | 2464 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 39,117 psi | 63% | 2562 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 49,458 psi | 79% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,821 psi | 80% | 2648 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,278 psi | 66% | 2536 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,231 psi | 60% | 2510 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 94% | 41,249 psi | 66% | 2598 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 47,964 psi | 77% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,593 psi | 59% | 2507 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 27,876 psi | 45% | 2346 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 96% | 48,588 psi | 78% | 2831 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,434 psi | 58% | 2480 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,000 psi | 61% | 2559 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,454 psi | 41% | 2352 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,576 psi | 83% | 2749 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,466 psi | 66% | 2605 fps | 95.1% |
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 103 powders for .300 Win. Mag. loaded with the .308 | 182gr | CutEdge MTAC. Norma MRP delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,963 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 182.0 gr projectile in 0.308" calls for a 1:11.0 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, Hodgdon Superformance rank at the top here: for .300 Win. Mag. with the .308 | 182gr | CutEdge MTAC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.