Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:250 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:8.5 x 68 Fanzoj load data
Case Length (l3):2.65"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:92 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:14.0
Load data in caliber 8.5 x 68 Fanzoj with .338 | 250gr | Sierra GameKing bullet and 112 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-16.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 57,740 psi | 90% | 2520 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,840 psi | 88% | 2549 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,414 psi | 76% | 2536 fps | 99.4% |
| Accurate 4064 | <<locked>> | 86% | 54,418 psi | 85% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,447 psi | 85% | 2628 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 57,246 psi | 90% | 2602 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,882 psi | 86% | 2562 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2671 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 49,792 psi | 78% | 2605 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,057 psi | 88% | 2549 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,537 psi | 90% | 2726 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,317 psi | 87% | 2579 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,666 psi | 87% | 2602 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,187 psi | 86% | 2677 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,652 psi | 89% | 2707 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,766 psi | 86% | 2661 fps | 98.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,167 psi | 75% | 2608 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,440 psi | 71% | 2552 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,943 psi | 63% | 2484 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,634 psi | 81% | 2726 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,072 psi | 89% | 2621 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,309 psi | 69% | 2539 fps | 96.7% |
| Bofors RP3 | <<locked>> | 88% | 56,086 psi | 88% | 2595 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,167 psi | 75% | 2608 fps | 97.7% |
| Bofors RP7 | <<locked>> | 92% | 55,738 psi | 87% | 2585 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,348 psi | 90% | 2526 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,811 psi | 87% | 2582 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,710 psi | 89% | 2615 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 56,811 psi | 89% | 2677 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 92% | 57,087 psi | 89% | 2641 fps | 99% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2612 fps | 96.5% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 52,228 psi | 82% | 2595 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 82% | 54,433 psi | 85% | 2562 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,550 psi | 87% | 2605 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,331 psi | 85% | 2598 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,058 psi | 89% | 2717 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,405 psi | 87% | 2566 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,882 psi | 86% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,317 psi | 85% | 2543 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,217 psi | 90% | 2579 fps | 99.6% |
| IMR 4350 | <<locked>> | 96% | 56,420 psi | 88% | 2615 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,435 psi | 90% | 2608 fps | 99.6% |
| IMR 4831 | <<locked>> | 96% | 54,969 psi | 86% | 2621 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 57,130 psi | 90% | 2625 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,332 psi | 87% | 2605 fps | 97% |
| IMR 8208 XBR | <<locked>> | 82% | 56,057 psi | 88% | 2549 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,551 psi | 90% | 2575 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,304 psi | 88% | 2530 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,549 psi | 85% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,290 psi | 90% | 2605 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 54,969 psi | 86% | 2598 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,161 psi | 63% | 2402 fps | 98.1% |
| Norma 201 | <<locked>> | 84% | 55,999 psi | 88% | 2546 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,826 psi | 89% | 2546 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,955 psi | 86% | 2589 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,913 psi | 89% | 2664 fps | 98.7% |
| Norma MRPᴾ | <<locked>> | 100% | 50,850 psi | 80% | 2684 fps | 99.2% |
| Norma URP | <<locked>> | 96% | 56,884 psi | 89% | 2661 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,608 psi | 87% | 2618 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2589 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 55,419 psi | 87% | 2667 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 41,930 psi | 66% | 2477 fps | 96.7% |
| Ramshot TAC | <<locked>> | 82% | 56,217 psi | 88% | 2582 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,130 psi | 88% | 2592 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,709 psi | 58% | 1594 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,884 psi | 89% | 2605 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,753 psi | 89% | 2667 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,246 psi | 88% | 2697 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,128 psi | 85% | 2651 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,768 psi | 89% | 2733 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 38,493 psi | 60% | 2487 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 82% | 56,985 psi | 89% | 2520 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,739 psi | 89% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,159 psi | 88% | 2592 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 2641 fps | 97.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 2641 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 92% | 55,738 psi | 87% | 2585 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,290 psi | 90% | 2605 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,551 psi | 90% | 2575 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,549 psi | 85% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,969 psi | 86% | 2598 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,172 psi | 85% | 2605 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,781 psi | 86% | 2562 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,782 psi | 87% | 2579 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,159 psi | 90% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,682 psi | 90% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,334 psi | 90% | 2566 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,200 psi | 83% | 2638 fps | 98.5% |
| Somchem S335 | <<locked>> | 84% | 56,608 psi | 89% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,433 psi | 85% | 2549 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,217 psi | 88% | 2589 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 55,782 psi | 87% | 2589 fps | 96.8% |
| Somchem S365 | <<locked>> | 98% | 55,608 psi | 87% | 2661 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,389 psi | 85% | 2621 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 84% | 57,580 psi | 90% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,753 psi | 89% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,305 psi | 90% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,580 psi | 90% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,593 psi | 87% | 2608 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,036 psi | 74% | 2500 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 82% | 56,463 psi | 88% | 2549 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,390 psi | 87% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,723 psi | 86% | 2618 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,879 psi | 80% | 2621 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 51,488 psi | 81% | 2671 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,332 psi | 87% | 2582 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,985 psi | 89% | 2595 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,072 psi | 89% | 2680 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,901 psi | 64% | 2602 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,840 psi | 88% | 2589 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,053 psi | 80% | 2566 fps | 97.9% |
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 2495 | <<locked>> | 80% | 47,790 psi | 75% | 2398 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,050 psi | 72% | 2402 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 32,314 psi | 51% | 2241 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 45,252 psi | 71% | 2405 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,881 psi | 53% | 2283 fps | 98% |
| ADI AR 2206H | <<locked>> | 80% | 50,647 psi | 79% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,989 psi | 67% | 2382 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 40,364 psi | 63% | 2415 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 98% | 46,688 psi | 73% | 2556 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,707 psi | 83% | 2507 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,775 psi | 73% | 2572 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,279 psi | 68% | 2405 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,253 psi | 72% | 2464 fps | 100% |
| Alliant Reloder-16 | 55.2 gr | 80% | 33,576 psi | 53% | 2293 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,666 psi | 59% | 2405 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 39,987 psi | 63% | 2411 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 39,639 psi | 62% | 2451 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,526 psi | 38% | 2080 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,140 psi | 49% | 2277 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 84% | 29,428 psi | 46% | 2277 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,096 psi | 79% | 2526 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,117 psi | 61% | 2438 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 43,207 psi | 68% | 2411 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 39,639 psi | 62% | 2451 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 38,406 psi | 60% | 2297 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,012 psi | 85% | 2484 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,257 psi | 82% | 2536 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,714 psi | 69% | 2421 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 35,955 psi | 56% | 2326 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 39,015 psi | 61% | 2343 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 49,864 psi | 78% | 2559 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 48,965 psi | 77% | 2543 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 51,198 psi | 80% | 2520 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,009 psi | 49% | 2198 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,471 psi | 74% | 2503 fps | 100% |
| Hodgdon Superformance | 64.4 gr | 82% | 37,362 psi | 59% | 2385 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,006 psi | 42% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,921 psi | 77% | 2474 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,634 psi | 81% | 2497 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,208 psi | 71% | 2408 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,442 psi | 74% | 2434 fps | 98.5% |
| IMR 4350 | <<locked>> | 82% | 36,477 psi | 57% | 2283 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,856 psi | 62% | 2326 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 32,735 psi | 51% | 2244 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 47,413 psi | 74% | 2490 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 48,965 psi | 77% | 2510 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 52,707 psi | 83% | 2507 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,502 psi | 79% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,879 psi | 78% | 2441 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,295 psi | 71% | 2408 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,478 psi | 59% | 2283 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 35,650 psi | 56% | 2267 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 31,125 psi | 49% | 2215 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 49,676 psi | 78% | 2461 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,169 psi | 79% | 2457 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,600 psi | 71% | 2454 fps | 100% |
| Norma 204 | <<locked>> | 86% | 40,785 psi | 64% | 2405 fps | 95.3% |
| Norma MRP | <<locked>> | 88% | 34,127 psi | 53% | 2362 fps | 95% |
| Norma URP | <<locked>> | 80% | 33,982 psi | 53% | 2280 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 45,513 psi | 71% | 2474 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 44,150 psi | 69% | 2533 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 32,895 psi | 52% | 2267 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 39,073 psi | 61% | 2421 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 52,504 psi | 82% | 2533 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,605 psi | 82% | 2546 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 43% | 1427 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,947 psi | 69% | 2408 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,400 psi | 77% | 2566 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,059 psi | 63% | 2457 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,460 psi | 52% | 2300 fps | 97.6% |
| ReloadSwiss RS 70 | 60.4 gr | 80% | 32,996 psi | 52% | 2303 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 36,013 psi | 56% | 2428 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,838 psi | 84% | 2480 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,326 psi | 74% | 2421 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,799 psi | 64% | 2365 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 44,730 psi | 70% | 2444 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 90% | 38,769 psi | 61% | 2392 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 38,406 psi | 60% | 2297 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,478 psi | 59% | 2283 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,502 psi | 79% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,295 psi | 71% | 2408 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,650 psi | 56% | 2267 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,626 psi | 65% | 2415 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,242 psi | 80% | 2513 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,950 psi | 77% | 2487 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,560 psi | 79% | 2398 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,496 psi | 67% | 2283 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,564 psi | 57% | 2231 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 38,406 psi | 60% | 2388 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 50,372 psi | 79% | 2402 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,981 psi | 80% | 2503 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,365 psi | 65% | 2365 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 48,950 psi | 77% | 2490 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 30,545 psi | 48% | 2244 fps | 99.6% |
| Somchem S385 | <<locked>> | 88% | 36,869 psi | 58% | 2329 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 51,039 psi | 80% | 2382 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,224 psi | 74% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,543 psi | 75% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,349 psi | 62% | 2306 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,317 psi | 55% | 2280 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 94% | 38,653 psi | 61% | 2356 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 52,997 psi | 83% | 2503 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,716 psi | 72% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,751 psi | 54% | 2283 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 26,455 psi | 41% | 2146 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 98% | 48,385 psi | 76% | 2621 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,621 psi | 54% | 2254 fps | 99.5% |
| Winchester 748 | <<locked>> | 80% | 53,258 psi | 83% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 35,955 psi | 56% | 2326 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 22,945 psi | 36% | 2096 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,907 psi | 77% | 2493 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 41,524 psi | 65% | 2411 fps | 95.7% |
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 8.5 x 68 Fanzoj loaded with the .338 | 250gr | Sierra GameKing. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,733 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,733 fps. Accurate 3100 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 57–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, 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, Hodgdon Superformance, Alliant Reloder-16 rank at the top here: for 8.5 x 68 Fanzoj with the .338 | 250gr | Sierra GameKing 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.