Load Specifications
Bullet:.338 | 250gr | Swift A-Frame
Bullet Manufacturer:Swift
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:1:15.5
Load data in caliber 8.5 x 68 Fanzoj with .338 | 250gr | Swift A-Frame bullet and 111 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>> | 84% | 55,172 psi | 86% | 2497 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,565 psi | 89% | 2566 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,559 psi | 78% | 2556 fps | 99.5% |
| Accurate 4064 | <<locked>> | 86% | 55,448 psi | 87% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,550 psi | 87% | 2648 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 51,126 psi | 80% | 2680 fps | 96% |
| ADI AR 2206H | <<locked>> | 82% | 54,810 psi | 86% | 2575 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,724 psi | 87% | 2579 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,826 psi | 89% | 2694 fps | 98.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,720 psi | 79% | 2628 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,014 psi | 89% | 2569 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,853 psi | 86% | 2697 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,449 psi | 88% | 2602 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,811 psi | 89% | 2625 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,478 psi | 89% | 2700 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,711 psi | 90% | 2723 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,869 psi | 88% | 2680 fps | 98.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,182 psi | 77% | 2631 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,528 psi | 73% | 2575 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,799 psi | 64% | 2507 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,968 psi | 83% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,549 psi | 85% | 2595 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,324 psi | 71% | 2566 fps | 97.1% |
| Bofors RP3 | <<locked>> | 88% | 57,203 psi | 90% | 2618 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,182 psi | 77% | 2631 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 56,753 psi | 89% | 2605 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,724 psi | 89% | 2598 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,114 psi | 85% | 2589 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 54,346 psi | 85% | 2651 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 90% | 54,433 psi | 85% | 2612 fps | 98.8% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 2635 fps | 96.8% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 53,214 psi | 83% | 2615 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 82% | 55,390 psi | 87% | 2582 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,579 psi | 89% | 2625 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,259 psi | 87% | 2618 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,302 psi | 85% | 2687 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,304 psi | 88% | 2582 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,014 psi | 88% | 2556 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,245 psi | 87% | 2562 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,650 psi | 86% | 2549 fps | 99.5% |
| IMR 4350 | <<locked>> | 96% | 57,319 psi | 90% | 2635 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,013 psi | 86% | 2582 fps | 99.5% |
| IMR 4831 | <<locked>> | 96% | 55,956 psi | 88% | 2641 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,636 psi | 86% | 2598 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,347 psi | 88% | 2625 fps | 97.3% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 48,356 psi | 76% | 2605 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 82% | 57,014 psi | 89% | 2569 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,998 psi | 86% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,188 psi | 90% | 2549 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,492 psi | 87% | 2556 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,679 psi | 86% | 2575 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 55,927 psi | 88% | 2618 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,089 psi | 64% | 2421 fps | 98.4% |
| Norma 201 | <<locked>> | 84% | 56,927 psi | 89% | 2566 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,522 psi | 90% | 2559 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,101 psi | 88% | 2612 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,273 psi | 85% | 2635 fps | 98.4% |
| Norma MRPᴾ | <<locked>> | 100% | 52,112 psi | 82% | 2707 fps | 99.4% |
| Norma URP | <<locked>> | 94% | 54,433 psi | 85% | 2638 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 56,652 psi | 89% | 2635 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 48,312 psi | 76% | 2615 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 56,594 psi | 89% | 2687 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,946 psi | 67% | 2503 fps | 97.1% |
| Ramshot TAC | <<locked>> | 82% | 56,985 psi | 89% | 2602 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,971 psi | 89% | 2612 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,898 psi | 58% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,566 psi | 90% | 2618 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,998 psi | 85% | 2635 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 57,406 psi | 90% | 2717 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,419 psi | 87% | 2674 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,896 psi | 84% | 2700 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 39,349 psi | 62% | 2516 fps | 97% |
| Rottweil R 902 | <<locked>> | 86% | 57,450 psi | 90% | 2562 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 57,101 psi | 89% | 2608 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,926 psi | 86% | 2612 fps | 97.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 2667 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 92% | 56,753 psi | 89% | 2605 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,679 psi | 86% | 2575 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,998 psi | 86% | 2549 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,492 psi | 87% | 2556 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,927 psi | 88% | 2618 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,216 psi | 87% | 2621 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,854 psi | 88% | 2582 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,637 psi | 89% | 2595 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,665 psi | 86% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,042 psi | 86% | 2457 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,563 psi | 86% | 2536 fps | 99.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,404 psi | 85% | 2664 fps | 98.7% |
| Somchem S335 | <<locked>> | 84% | 57,479 psi | 90% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,521 psi | 87% | 2569 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 57,101 psi | 89% | 2605 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 56,724 psi | 89% | 2608 fps | 97.1% |
| Somchem S365 | <<locked>> | 98% | 56,768 psi | 89% | 2680 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,477 psi | 87% | 2641 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 82% | 55,100 psi | 86% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,302 psi | 85% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,766 psi | 86% | 2500 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,911 psi | 86% | 2536 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,637 psi | 89% | 2628 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,051 psi | 75% | 2523 fps | 98% |
| Vihtavuori N530 | <<locked>> | 82% | 57,377 psi | 90% | 2566 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,173 psi | 88% | 2543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,651 psi | 87% | 2638 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,924 psi | 81% | 2641 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 2697 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,362 psi | 88% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,592 psi | 86% | 2654 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,771 psi | 65% | 2625 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,666 psi | 89% | 2605 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,083 psi | 82% | 2589 fps | 98.2% |
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% | 48,646 psi | 76% | 2415 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,615 psi | 73% | 2418 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 30,922 psi | 48% | 2215 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 46,064 psi | 72% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,563 psi | 54% | 2303 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 98% | 47,776 psi | 75% | 2625 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 51,358 psi | 80% | 2526 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,685 psi | 68% | 2398 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 41,176 psi | 65% | 2434 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 44,527 psi | 70% | 2523 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,432 psi | 84% | 2523 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,674 psi | 75% | 2592 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,005 psi | 69% | 2421 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,949 psi | 74% | 2480 fps | 100% |
| Alliant Reloder-16 | 56.2 gr | 80% | 34,142 psi | 54% | 2313 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,247 psi | 60% | 2421 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 40,611 psi | 64% | 2431 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 37,985 psi | 60% | 2421 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,976 psi | 39% | 2100 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 29,950 psi | 47% | 2251 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 82% | 28,094 psi | 44% | 2244 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,966 psi | 80% | 2546 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,871 psi | 62% | 2461 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 44,164 psi | 69% | 2431 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 37,985 psi | 60% | 2421 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 39,189 psi | 61% | 2320 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,142 psi | 83% | 2552 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,556 psi | 70% | 2441 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 36,579 psi | 57% | 2346 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 39,784 psi | 62% | 2365 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 96% | 47,732 psi | 75% | 2533 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 46,717 psi | 73% | 2513 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 51,953 psi | 81% | 2536 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,604 psi | 50% | 2218 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,399 psi | 76% | 2523 fps | 100% |
| Hodgdon Superformance | 64 gr | 80% | 35,563 psi | 56% | 2352 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,166 psi | 43% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,647 psi | 78% | 2490 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,518 psi | 82% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,919 psi | 72% | 2425 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,283 psi | 76% | 2454 fps | 98.8% |
| IMR 4350 | <<locked>> | 82% | 37,043 psi | 58% | 2300 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,437 psi | 63% | 2343 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 33,359 psi | 52% | 2260 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 48,153 psi | 75% | 2507 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 46,833 psi | 73% | 2480 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 45,208 psi | 71% | 2549 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 53,432 psi | 84% | 2523 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,459 psi | 81% | 2503 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,734 psi | 80% | 2461 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,224 psi | 72% | 2428 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,101 psi | 60% | 2303 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 36,260 psi | 57% | 2283 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 31,937 psi | 50% | 2238 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 50,401 psi | 79% | 2477 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,894 psi | 80% | 2474 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,325 psi | 73% | 2470 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,684 psi | 65% | 2431 fps | 95.8% |
| Norma MRP | <<locked>> | 88% | 34,867 psi | 55% | 2382 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 34,650 psi | 54% | 2300 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 46,354 psi | 73% | 2490 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 45,078 psi | 71% | 2559 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 33,562 psi | 53% | 2287 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 96% | 37,188 psi | 58% | 2392 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 53,301 psi | 84% | 2549 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,461 psi | 84% | 2566 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,499 psi | 43% | 1430 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,541 psi | 70% | 2425 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,430 psi | 79% | 2585 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,669 psi | 64% | 2470 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,229 psi | 54% | 2320 fps | 97.9% |
| ReloadSwiss RS 70 | 61.5 gr | 80% | 33,649 psi | 53% | 2326 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 36,854 psi | 58% | 2457 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 48,066 psi | 75% | 2438 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,510 psi | 65% | 2382 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 45,411 psi | 71% | 2464 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 39,494 psi | 62% | 2411 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 39,189 psi | 61% | 2320 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,101 psi | 60% | 2303 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,459 psi | 81% | 2503 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,224 psi | 72% | 2428 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,260 psi | 57% | 2283 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,453 psi | 67% | 2431 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,069 psi | 82% | 2530 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,850 psi | 78% | 2503 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,343 psi | 80% | 2415 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,221 psi | 68% | 2300 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,115 psi | 58% | 2247 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 39,117 psi | 61% | 2408 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 51,053 psi | 80% | 2415 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,822 psi | 81% | 2520 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,032 psi | 66% | 2385 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 46,557 psi | 73% | 2457 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 31,140 psi | 49% | 2264 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 35,302 psi | 55% | 2300 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 51,837 psi | 81% | 2398 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,066 psi | 75% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,254 psi | 76% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,001 psi | 63% | 2320 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,955 psi | 56% | 2297 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 37,057 psi | 58% | 2329 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 53,954 psi | 85% | 2523 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,543 psi | 73% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,476 psi | 56% | 2303 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 27,035 psi | 42% | 2165 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 96% | 46,195 psi | 72% | 2589 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,201 psi | 55% | 2274 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 36,724 psi | 58% | 2346 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 23,380 psi | 37% | 2119 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,777 psi | 78% | 2510 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 39,653 psi | 62% | 2382 fps | 95.3% |
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 111 powders for 8.5 x 68 Fanzoj loaded with the .338 | 250gr | Swift A-Frame. Alliant Reloder-26 delivers the highest muzzle velocity at 2,749 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,749 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 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 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 | Swift A-Frame 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.