Load Specifications
Load data in caliber 8.5 x 68 Fanzoj with .338 | 210gr | Rhino Penetrator bullet and 99 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, Hodgdon Superformance 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.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 56,246 psi | 88% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,056 psi | 86% | 2740 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,695 psi | 89% | 2805 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,580 psi | 90% | 2795 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,989 psi | 66% | 2644 fps | 96.8% |
| Accurate 4064 | <<locked>> | 90% | 54,955 psi | 86% | 2785 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,781 psi | 86% | 2874 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 55,216 psi | 87% | 2818 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,391 psi | 88% | 2818 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,682 psi | 90% | 2815 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,361 psi | 87% | 2743 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,940 psi | 86% | 2940 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,289 psi | 88% | 2838 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,043 psi | 89% | 2864 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,421 psi | 90% | 2969 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,089 psi | 63% | 2677 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,889 psi | 70% | 2838 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,027 psi | 86% | 2835 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 57,261 psi | 90% | 2858 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,159 psi | 90% | 2831 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,854 psi | 88% | 2749 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,450 psi | 90% | 2851 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,579 psi | 87% | 2897 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,418 psi | 85% | 2822 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 98% | 57,696 psi | 90% | 2927 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 54,810 psi | 86% | 2838 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 55,767 psi | 87% | 2828 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,199 psi | 82% | 2805 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,448 psi | 87% | 2864 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,549 psi | 85% | 2910 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,679 psi | 56% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,087 psi | 89% | 2831 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,956 psi | 88% | 2805 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,709 psi | 87% | 2799 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,637 psi | 87% | 2782 fps | 98.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 57,363 psi | 90% | 2858 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,550 psi | 87% | 2812 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,288 psi | 87% | 2867 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 54,868 psi | 86% | 2841 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,682 psi | 90% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,259 psi | 87% | 2795 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,723 psi | 86% | 2746 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,709 psi | 87% | 2799 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,795 psi | 86% | 2802 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 55,912 psi | 88% | 2841 fps | 98.7% |
| Norma 201 | <<locked>> | 88% | 57,493 psi | 90% | 2812 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,592 psi | 86% | 2762 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,246 psi | 88% | 2851 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,491 psi | 85% | 2854 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 44,846 psi | 70% | 2795 fps | 96.3% |
| Norma URPᴾ | <<locked>> | 100% | 57,421 psi | 90% | 2913 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 56,898 psi | 89% | 2877 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,231 psi | 88% | 2913 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 54,476 psi | 85% | 2789 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,143 psi | 85% | 2805 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,114 psi | 86% | 2772 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,042 psi | 56% | 1745 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,174 psi | 90% | 2795 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,650 psi | 86% | 2802 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,696 psi | 90% | 2933 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,246 psi | 90% | 2966 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,549 psi | 85% | 2900 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,954 psi | 85% | 2927 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 55,085 psi | 86% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,621 psi | 86% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,116 psi | 90% | 2851 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,159 psi | 90% | 2831 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,795 psi | 86% | 2802 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,259 psi | 87% | 2795 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,709 psi | 87% | 2799 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,912 psi | 88% | 2841 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,042 psi | 86% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,579 psi | 89% | 2822 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,217 psi | 90% | 2841 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,492 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,825 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,100 psi | 86% | 2756 fps | 98.3% |
| Somchem S321 | <<locked>> | 82% | 55,477 psi | 87% | 2802 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,984 psi | 86% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,115 psi | 88% | 2808 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 57,159 psi | 90% | 2844 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,764 psi | 81% | 2864 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,124 psi | 75% | 2749 fps | 96.6% |
| Vihtavuori N130 | <<locked>> | 82% | 55,347 psi | 87% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,753 psi | 87% | 2684 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,360 psi | 85% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,129 psi | 86% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,259 psi | 87% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,304 psi | 88% | 2858 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 54,868 psi | 86% | 2769 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,782 psi | 89% | 2789 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,361 psi | 87% | 2864 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,179 psi | 69% | 2753 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,666 psi | 89% | 2835 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,824 psi | 86% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,230 psi | 85% | 2874 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,926 psi | 56% | 2687 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 57,246 psi | 90% | 2851 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 49,719 psi | 78% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,511 psi | 67% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,516 psi | 78% | 2703 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,353 psi | 70% | 2582 fps | 95.3% |
| Accurate 3100 | <<locked>> | 96% | 36,651 psi | 57% | 2539 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 40,190 psi | 63% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,560 psi | 49% | 2438 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,905 psi | 72% | 2667 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,928 psi | 61% | 2520 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,993 psi | 75% | 2671 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,370 psi | 76% | 2648 fps | 100% |
| Alliant Power Pro 2000-MR | 62.4 gr | 80% | 41,800 psi | 66% | 2703 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,696 psi | 61% | 2543 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,611 psi | 65% | 2608 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,097 psi | 50% | 2451 fps | 95.4% |
| Alliant Reloder-17 | 61.4 gr | 80% | 33,417 psi | 52% | 2516 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,746 psi | 43% | 2359 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,953 psi | 53% | 2589 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,092 psi | 71% | 2671 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 38,435 psi | 60% | 2549 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 44,512 psi | 70% | 2621 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,661 psi | 78% | 2657 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,963 psi | 74% | 2697 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,793 psi | 81% | 2841 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 39,146 psi | 61% | 2549 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 41,452 psi | 65% | 2651 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 88% | 45,223 psi | 71% | 2671 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,383 psi | 73% | 2680 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,528 psi | 43% | 2300 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,380 psi | 66% | 2654 fps | 99.7% |
| Hodgdon Superformance | 73 gr | 90% | 44,019 psi | 69% | 2723 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 42% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,454 psi | 70% | 2631 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,151 psi | 72% | 2667 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,886 psi | 64% | 2552 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,337 psi | 68% | 2572 fps | 95.9% |
| IMR 4350 | <<locked>> | 90% | 41,989 psi | 66% | 2598 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,973 psi | 64% | 2556 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 32,851 psi | 51% | 2451 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 42,641 psi | 67% | 2638 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 47,993 psi | 75% | 2671 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,078 psi | 71% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,818 psi | 72% | 2602 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 40,988 psi | 64% | 2559 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,766 psi | 56% | 2451 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 40,901 psi | 64% | 2582 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 44,962 psi | 70% | 2618 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,266 psi | 71% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,988 psi | 64% | 2595 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 47,471 psi | 74% | 2736 fps | 95% |
| Norma MRP | <<locked>> | 98% | 41,989 psi | 66% | 2736 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 32,068 psi | 50% | 2441 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,538 psi | 64% | 2608 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 37,985 psi | 60% | 2585 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 47,732 psi | 75% | 2680 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,485 psi | 74% | 2700 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,605 psi | 81% | 2720 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,890 psi | 42% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,606 psi | 84% | 2746 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,537 psi | 62% | 2533 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,947 psi | 69% | 2710 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,563 psi | 56% | 2582 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,562 psi | 53% | 2507 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 36,071 psi | 57% | 2572 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,878 psi | 77% | 2651 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,844 psi | 67% | 2572 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,114 psi | 57% | 2493 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 44,512 psi | 70% | 2621 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,766 psi | 56% | 2451 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,078 psi | 71% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,988 psi | 64% | 2559 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,901 psi | 64% | 2582 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,144 psi | 58% | 2546 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,137 psi | 72% | 2657 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,382 psi | 70% | 2638 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,282 psi | 73% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,580 psi | 60% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 39,914 psi | 63% | 2500 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 51,837 psi | 81% | 2749 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,832 psi | 72% | 2569 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,890 psi | 72% | 2651 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 36,999 psi | 58% | 2500 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 26,861 psi | 42% | 2336 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 42,148 psi | 66% | 2641 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 52,112 psi | 82% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,615 psi | 73% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,409 psi | 66% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,859 psi | 67% | 2559 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,128 psi | 55% | 2434 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 33,373 psi | 52% | 2441 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 48,095 psi | 75% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,249 psi | 65% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,880 psi | 52% | 2444 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 29,820 psi | 47% | 2434 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,082 psi | 49% | 2365 fps | 97.1% |
| Winchester 748 | <<locked>> | 80% | 47,877 psi | 75% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,640 psi | 65% | 2654 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,746 psi | 43% | 2431 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,787 psi | 69% | 2641 fps | 99.7% |
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 99 powders for 8.5 x 68 Fanzoj loaded with the .338 | 210gr | Rhino Penetrator. Alliant Reloder-17 delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,969 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, 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. Alliant Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 8.5 x 68 Fanzoj with the .338 | 210gr | Rhino Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.