Load Specifications
Bullet:.284 | 175gr | Hornady ELD-X
Bullet Manufacturer:Hornady
Bullet Weight:175 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 FCP load data
Case Length (l3):2.027"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:72 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:30"
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:9.0
Load data in caliber 7 FCP with .284 | 175gr | Hornady ELD-X bullet and 97 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.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 56,449 psi | 87% | 2753 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 55,259 psi | 85% | 2815 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,376 psi | 87% | 2720 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,261 psi | 88% | 2848 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 56,579 psi | 87% | 2979 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 98% | 57,522 psi | 89% | 2979 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 84% | 55,941 psi | 86% | 2762 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 58,044 psi | 89% | 2910 fps | 100% |
| ADI AR 2213 | <<locked>> | 98% | 55,782 psi | 86% | 2920 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,497 psi | 67% | 2707 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,305 psi | 59% | 2671 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 58,131 psi | 89% | 2907 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 58,131 psi | 89% | 2907 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,840 psi | 87% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,188 psi | 88% | 2805 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 58,059 psi | 89% | 2900 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,767 psi | 86% | 2871 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,348 psi | 88% | 2900 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,158 psi | 85% | 2917 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,753 psi | 86% | 2871 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,298 psi | 74% | 2838 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,057 psi | 86% | 2972 fps | 100% |
| Baschieri & Pellagri 109ᴾ | <<locked>> | 100% | 58,117 psi | 89% | 2881 fps | 97.7% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,056 psi | 83% | 2900 fps | 99.8% |
| Bofors RP3 | <<locked>> | 84% | 57,943 psi | 89% | 2799 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,135 psi | 68% | 2776 fps | 98.5% |
| Bofors RP5 | <<locked>> | 98% | 55,158 psi | 85% | 2917 fps | 99.9% |
| Bofors RP7 | <<locked>> | 88% | 57,072 psi | 88% | 2802 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,747 psi | 73% | 2785 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 58,015 psi | 89% | 2822 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,579 psi | 86% | 2858 fps | 100% |
| Hodgdon H4350 | <<locked>> | 88% | 58,697 psi | 90% | 2864 fps | 100% |
| Hodgdon H4831 | <<locked>> | 96% | 55,738 psi | 86% | 2858 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 98% | 58,566 psi | 90% | 2897 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 58,407 psi | 90% | 2815 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,166 psi | 73% | 2897 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 55,898 psi | 86% | 2900 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,883 psi | 57% | 1709 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,303 psi | 85% | 2740 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,551 psi | 89% | 2782 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 58,015 psi | 89% | 2835 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 88% | 58,465 psi | 90% | 2822 fps | 100% |
| IMR 4831 | <<locked>> | 92% | 57,696 psi | 89% | 2838 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 58,653 psi | 90% | 2831 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,116 psi | 88% | 2841 fps | 99.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 56,971 psi | 88% | 2949 fps | 99.6% |
| Lovex S062 | <<locked>> | 82% | 55,637 psi | 86% | 2730 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,376 psi | 85% | 2769 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 56,942 psi | 88% | 2818 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,429 psi | 76% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 82% | 56,507 psi | 87% | 2792 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,419 psi | 85% | 2848 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 33,895 psi | 52% | 2602 fps | 97.8% |
| Norma MRP | <<locked>> | 98% | 58,755 psi | 90% | 2992 fps | 100% |
| Norma URP | <<locked>> | 90% | 55,985 psi | 86% | 2838 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,087 psi | 88% | 2815 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 57,653 psi | 89% | 2969 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 92% | 58,204 psi | 90% | 2894 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,459 psi | 79% | 2844 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 58% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,928 psi | 89% | 2812 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,085 psi | 85% | 2854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,217 psi | 88% | 2874 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,347 psi | 85% | 2907 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,413 psi | 73% | 2897 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 42,424 psi | 65% | 2779 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 82% | 57,551 psi | 89% | 2736 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 58,131 psi | 89% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,869 psi | 86% | 2825 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 96% | 56,869 psi | 88% | 2887 fps | 100% |
| Rottweil R 907 | <<locked>> | 88% | 57,072 psi | 88% | 2802 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,376 psi | 85% | 2769 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,637 psi | 86% | 2730 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,942 psi | 88% | 2818 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,970 psi | 86% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 58,305 psi | 90% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 58,581 psi | 90% | 2776 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,405 psi | 87% | 2884 fps | 99.9% |
| Somchem S355 | <<locked>> | 86% | 57,711 psi | 89% | 2785 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 57,653 psi | 89% | 2822 fps | 99.1% |
| Somchem S365 | <<locked>> | 92% | 55,521 psi | 85% | 2831 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 57,246 psi | 88% | 2854 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 58,189 psi | 90% | 2687 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 58,102 psi | 89% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 55,593 psi | 86% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 57,754 psi | 89% | 2818 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,652 psi | 87% | 2835 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 56,217 psi | 87% | 2710 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,913 psi | 88% | 2835 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 58,494 psi | 90% | 2900 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,752 psi | 84% | 2936 fps | 99.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,270 psi | 77% | 2854 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 43,816 psi | 67% | 2785 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,305 psi | 88% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,840 psi | 86% | 2861 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,054 psi | 80% | 2963 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 57,624 psi | 89% | 2858 fps | 99.9% |
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 52,765 psi | 81% | 2700 fps | 99.9% |
| Accurate 3100 | <<locked>> | 80% | 30,356 psi | 47% | 2365 fps | 97.6% |
| Accurate 4064 | <<locked>> | 80% | 52,852 psi | 81% | 2674 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,046 psi | 63% | 2602 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 34,882 psi | 54% | 2575 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 86% | 37,840 psi | 58% | 2631 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 49,545 psi | 76% | 2671 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 34,534 psi | 53% | 2484 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 86% | 37,405 psi | 58% | 2582 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 94% | 35,737 psi | 55% | 2536 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 90% | 28,108 psi | 43% | 2395 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 34,795 psi | 54% | 2490 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 34,795 psi | 54% | 2490 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,328 psi | 77% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,708 psi | 83% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,494 psi | 61% | 2608 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,107 psi | 69% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,505 psi | 53% | 2484 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 82% | 32,430 psi | 50% | 2480 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,167 psi | 45% | 2398 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 25,672 psi | 40% | 2310 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,227 psi | 48% | 2520 fps | 99.2% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 48,356 psi | 74% | 2720 fps | 95.6% |
| Bofors RP15 | <<locked>> | 84% | 32,227 psi | 50% | 2474 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 50,937 psi | 78% | 2703 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 33,939 psi | 52% | 2556 fps | 95.6% |
| Bofors RP5 | <<locked>> | 82% | 32,430 psi | 50% | 2480 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 44,527 psi | 69% | 2605 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 34,345 psi | 53% | 2507 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 51,024 psi | 79% | 2723 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,699 psi | 66% | 2648 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 45,571 psi | 70% | 2661 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 37,333 psi | 57% | 2530 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 86% | 39,204 psi | 60% | 2572 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,144 psi | 57% | 2497 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 30,211 psi | 46% | 2487 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 41,713 psi | 64% | 2674 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 42% | 1522 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,156 psi | 80% | 2697 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,085 psi | 83% | 2733 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,016 psi | 62% | 2543 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,832 psi | 71% | 2628 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 39,088 psi | 60% | 2549 fps | 100% |
| IMR 4895 | <<locked>> | 80% | 55,114 psi | 85% | 2782 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 36,999 psi | 57% | 2484 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 86% | 35,911 psi | 55% | 2559 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 52,489 psi | 81% | 2687 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,352 psi | 67% | 2579 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 41,597 psi | 64% | 2572 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 26,165 psi | 40% | 2254 fps | 95.9% |
| Norma 203B | <<locked>> | 80% | 53,069 psi | 82% | 2746 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,523 psi | 61% | 2575 fps | 97.6% |
| Norma 217 | <<locked>> | 94% | 28,137 psi | 43% | 2438 fps | 95% |
| Norma MRP | <<locked>> | 80% | 31,430 psi | 48% | 2487 fps | 97% |
| Norma URP | <<locked>> | 80% | 40,379 psi | 62% | 2589 fps | 100% |
| Ramshot Big Game | <<locked>> | 80% | 53,621 psi | 83% | 2769 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 35,172 psi | 54% | 2556 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 39,204 psi | 60% | 2589 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 29,138 psi | 45% | 2388 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 43% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,894 psi | 78% | 2713 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,848 psi | 74% | 2756 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,582 psi | 62% | 2621 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,233 psi | 60% | 2641 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 29,283 psi | 45% | 2464 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 39,494 psi | 61% | 2717 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 54,056 psi | 83% | 2690 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,863 psi | 74% | 2654 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 35,911 psi | 55% | 2464 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 33,547 psi | 52% | 2467 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 80% | 44,527 psi | 69% | 2605 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,352 psi | 67% | 2579 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 52,489 psi | 81% | 2687 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,597 psi | 64% | 2572 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,037 psi | 75% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,834 psi | 75% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,525 psi | 65% | 2533 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,228 psi | 51% | 2461 fps | 96.1% |
| Somchem S355 | <<locked>> | 80% | 48,008 psi | 74% | 2651 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 38,754 psi | 60% | 2503 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,115 psi | 57% | 2549 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,214 psi | 53% | 2451 fps | 97.3% |
| Vihtavuori N135 | <<locked>> | 80% | 54,824 psi | 84% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 54,563 psi | 84% | 2661 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,818 psi | 71% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,989 psi | 65% | 2585 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 29,573 psi | 46% | 2333 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 52,866 psi | 81% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,278 psi | 64% | 2592 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 32,532 psi | 50% | 2467 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 36,477 psi | 56% | 2592 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 90% | 35,940 psi | 55% | 2579 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 98% | 41,075 psi | 63% | 2730 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,799 psi | 63% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,960 psi | 66% | 2651 fps | 99.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,773 psi | 40% | 2411 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 30,995 psi | 48% | 2375 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 97 powders for 7 FCP loaded with the .284 | 175gr | Hornady ELD-X. Norma MRP delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,992 fps. ADI AR 2217 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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.