Load Specifications
Bullet Manufacturer:Ferrobull Europe
Bullet Weight:220 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Caliber:8 x 68 S load data
Case Length (l3):2.657"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.0
Load data in caliber 8 x 68 S with .323 | 220gr | Ferrobull Entox Sport bullet and 116 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% | 57,377 psi | 90% | 2589 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,985 psi | 88% | 2621 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,254 psi | 76% | 2602 fps | 99.4% |
| Accurate 4064 | <<locked>> | 88% | 57,609 psi | 90% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,650 psi | 86% | 2703 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 53,098 psi | 83% | 2792 fps | 97.8% |
| ADI AR 2206H | <<locked>> | 84% | 57,450 psi | 90% | 2677 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,984 psi | 86% | 2635 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,144 psi | 88% | 2749 fps | 98.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,183 psi | 79% | 2687 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,101 psi | 88% | 2621 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,027 psi | 85% | 2753 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,811 psi | 87% | 2743 fps | 98.7% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,811 psi | 87% | 2743 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,434 psi | 87% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,782 psi | 87% | 2677 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,622 psi | 87% | 2756 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,188 psi | 90% | 2785 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,984 psi | 86% | 2736 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,530 psi | 76% | 2684 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 2628 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,958 psi | 63% | 2552 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,953 psi | 81% | 2802 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,435 psi | 90% | 2700 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,440 psi | 70% | 2612 fps | 96.8% |
| Bofors RP3 | <<locked>> | 88% | 56,057 psi | 88% | 2667 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,530 psi | 76% | 2684 fps | 97.8% |
| Bofors RP7 | <<locked>> | 92% | 55,695 psi | 87% | 2657 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,595 psi | 90% | 2602 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,738 psi | 87% | 2654 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,840 psi | 89% | 2690 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 57,159 psi | 90% | 2756 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 92% | 57,450 psi | 90% | 2720 fps | 99.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 53,766 psi | 84% | 2687 fps | 96.7% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 52,692 psi | 83% | 2674 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 54,433 psi | 85% | 2638 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,796 psi | 87% | 2680 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,433 psi | 85% | 2674 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,725 psi | 90% | 2802 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,143 psi | 57% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,666 psi | 87% | 2641 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,897 psi | 86% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,520 psi | 85% | 2618 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,450 psi | 90% | 2654 fps | 99.7% |
| IMR 4350 | <<locked>> | 96% | 56,666 psi | 89% | 2694 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,215 psi | 85% | 2638 fps | 99.4% |
| IMR 4831 | <<locked>> | 96% | 55,085 psi | 86% | 2694 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 57,232 psi | 90% | 2700 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2680 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 47,500 psi | 74% | 2654 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 56,101 psi | 88% | 2621 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,551 psi | 90% | 2648 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,347 psi | 88% | 2602 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,375 psi | 85% | 2608 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,392 psi | 90% | 2677 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 55,100 psi | 86% | 2671 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,914 psi | 63% | 2461 fps | 98.1% |
| Norma 201 | <<locked>> | 84% | 55,811 psi | 87% | 2618 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,594 psi | 89% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,042 psi | 86% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,334 psi | 90% | 2743 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 51,372 psi | 81% | 2762 fps | 99.3% |
| Norma URP | <<locked>> | 96% | 57,130 psi | 90% | 2740 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,811 psi | 87% | 2690 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 47,514 psi | 74% | 2664 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 55,796 psi | 87% | 2743 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,003 psi | 66% | 2549 fps | 96.8% |
| Ramshot TAC | <<locked>> | 82% | 56,289 psi | 88% | 2657 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,173 psi | 88% | 2664 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,637 psi | 57% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,971 psi | 89% | 2677 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,782 psi | 89% | 2743 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,579 psi | 89% | 2772 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,389 psi | 85% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,261 psi | 90% | 2812 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 38,595 psi | 60% | 2559 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 82% | 56,536 psi | 89% | 2589 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,434 psi | 88% | 2618 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,173 psi | 88% | 2664 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,186 psi | 85% | 2667 fps | 97.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 2720 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,695 psi | 87% | 2657 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,392 psi | 90% | 2677 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,551 psi | 90% | 2648 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,375 psi | 85% | 2608 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,100 psi | 86% | 2671 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,259 psi | 85% | 2677 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,955 psi | 86% | 2638 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,738 psi | 87% | 2651 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,203 psi | 90% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,302 psi | 85% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,348 psi | 90% | 2638 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2717 fps | 98.6% |
| Somchem S335 | <<locked>> | 84% | 56,492 psi | 89% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,534 psi | 85% | 2621 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,173 psi | 88% | 2661 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 55,999 psi | 88% | 2661 fps | 97% |
| Somchem S365 | <<locked>> | 98% | 55,941 psi | 88% | 2736 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,781 psi | 86% | 2697 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 84% | 57,696 psi | 90% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,956 psi | 89% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,334 psi | 90% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,624 psi | 90% | 2635 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,999 psi | 88% | 2684 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,079 psi | 74% | 2569 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 82% | 56,565 psi | 89% | 2621 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,347 psi | 87% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,694 psi | 86% | 2690 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,995 psi | 80% | 2694 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,025 psi | 82% | 2753 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,622 psi | 87% | 2657 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,145 psi | 90% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,435 psi | 90% | 2759 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,814 psi | 64% | 2671 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,941 psi | 88% | 2661 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,387 psi | 81% | 2641 fps | 98% |
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% | 47,079 psi | 74% | 2461 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,774 psi | 72% | 2467 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 31,850 psi | 50% | 2293 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 44,628 psi | 70% | 2464 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,475 psi | 52% | 2339 fps | 97.9% |
| Accurate High Country | <<locked>> | 94% | 42,859 psi | 67% | 2618 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 50,633 psi | 79% | 2582 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,018 psi | 67% | 2451 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 40,379 psi | 63% | 2480 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 98% | 46,847 psi | 73% | 2628 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,808 psi | 83% | 2579 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,862 psi | 73% | 2644 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 40,248 psi | 63% | 2480 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 40,248 psi | 63% | 2480 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,105 psi | 68% | 2470 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,180 psi | 72% | 2533 fps | 100% |
| Alliant Reloder-16 | 52.8 gr | 80% | 33,286 psi | 52% | 2352 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,449 psi | 59% | 2470 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 39,798 psi | 62% | 2474 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 39,581 psi | 62% | 2516 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,033 psi | 38% | 2123 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,009 psi | 49% | 2336 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 84% | 29,022 psi | 45% | 2329 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,227 psi | 79% | 2598 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,015 psi | 61% | 2503 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 43,018 psi | 67% | 2477 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 39,581 psi | 62% | 2516 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 38,261 psi | 60% | 2362 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,998 psi | 85% | 2556 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,214 psi | 82% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,468 psi | 68% | 2487 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 35,766 psi | 56% | 2385 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 80% | 38,986 psi | 61% | 2411 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 46,862 psi | 73% | 2579 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 49,182 psi | 77% | 2618 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,213 psi | 80% | 2592 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,777 psi | 48% | 2257 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,601 psi | 75% | 2575 fps | 100% |
| Hodgdon Superformance | 61.7 gr | 82% | 37,362 psi | 59% | 2451 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 42% | 1437 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,008 psi | 77% | 2546 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,474 psi | 81% | 2566 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,237 psi | 71% | 2477 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,543 psi | 75% | 2507 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 36,274 psi | 57% | 2343 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,726 psi | 62% | 2392 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 32,401 psi | 51% | 2300 fps | 97.7% |
| IMR 4895 | <<locked>> | 80% | 47,369 psi | 74% | 2559 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 46,006 psi | 72% | 2530 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 44,570 psi | 70% | 2598 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 52,808 psi | 83% | 2579 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,314 psi | 79% | 2552 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,966 psi | 78% | 2513 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,194 psi | 71% | 2477 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,086 psi | 58% | 2346 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 35,302 psi | 55% | 2326 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 30,719 psi | 48% | 2267 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 49,342 psi | 77% | 2530 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,038 psi | 78% | 2526 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,498 psi | 71% | 2520 fps | 100% |
| Norma 204 | <<locked>> | 86% | 40,756 psi | 64% | 2474 fps | 95.4% |
| Norma MRP | <<locked>> | 90% | 36,303 psi | 57% | 2477 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,736 psi | 53% | 2339 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 45,513 psi | 71% | 2539 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 44,208 psi | 69% | 2605 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 32,648 psi | 51% | 2326 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 39,146 psi | 61% | 2490 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 52,620 psi | 82% | 2605 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,663 psi | 83% | 2618 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,209 psi | 43% | 1470 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,671 psi | 68% | 2474 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,458 psi | 78% | 2638 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,900 psi | 63% | 2520 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,286 psi | 52% | 2359 fps | 97.6% |
| ReloadSwiss RS 70 | 57.8 gr | 80% | 32,764 psi | 51% | 2362 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 35,911 psi | 56% | 2493 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 53,185 psi | 83% | 2546 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,905 psi | 74% | 2484 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,422 psi | 63% | 2428 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 44,715 psi | 70% | 2513 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 38,696 psi | 61% | 2457 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 38,261 psi | 60% | 2362 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,086 psi | 58% | 2346 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,314 psi | 79% | 2552 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,194 psi | 71% | 2477 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,302 psi | 55% | 2326 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,553 psi | 65% | 2480 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,198 psi | 80% | 2582 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,965 psi | 77% | 2556 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,444 psi | 79% | 2467 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,366 psi | 66% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,274 psi | 57% | 2290 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 38,334 psi | 60% | 2454 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 50,154 psi | 79% | 2467 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,082 psi | 80% | 2572 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,017 psi | 64% | 2431 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 48,936 psi | 77% | 2559 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 30,226 psi | 47% | 2300 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 36,666 psi | 57% | 2388 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 50,995 psi | 80% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,007 psi | 74% | 2451 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,456 psi | 74% | 2467 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,131 psi | 61% | 2365 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,172 psi | 55% | 2343 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 94% | 38,696 psi | 61% | 2421 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 53,127 psi | 83% | 2575 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,556 psi | 71% | 2461 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,432 psi | 54% | 2339 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 25,933 psi | 41% | 2192 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 96% | 45,237 psi | 71% | 2635 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,447 psi | 54% | 2316 fps | 99.5% |
| Winchester 748 | <<locked>> | 80% | 53,476 psi | 84% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 35,766 psi | 56% | 2385 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 84% | 23,931 psi | 38% | 2195 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,849 psi | 77% | 2562 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 41,568 psi | 65% | 2480 fps | 95.8% |
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 116 powders for 8 x 68 S loaded with the .323 | 220gr | Ferrobull Entox Sport. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,812 fps; across all powders the maximum-charge window runs from 1,611 fps to 2,812 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 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 220.0 gr projectile in 0.323" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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 x 68 S with the .323 | 220gr | Ferrobull Entox Sport 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.