Load Specifications
Bullet Manufacturer:Cutting Edge
Bullet Weight:179 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:1:9.5
Load data in caliber 8 x 68 S with .323 | 179gr | CutEdge ESP Raptor bullet and 107 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, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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 2015 | <<locked>> | 88% | 55,738 psi | 87% | 2779 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,085 psi | 85% | 2805 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 56,594 psi | 89% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,969 psi | 85% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 96% | 54,824 psi | 86% | 2792 fps | 96.2% |
| Accurate 4064 | <<locked>> | 96% | 56,304 psi | 88% | 2884 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,805 psi | 76% | 2851 fps | 98.7% |
| Accurate LT-30 | <<locked>> | 82% | 55,071 psi | 86% | 2723 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,492 psi | 87% | 2749 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,839 psi | 86% | 2877 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 55,927 psi | 88% | 2874 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 82% | 56,217 psi | 88% | 2848 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 57,580 psi | 90% | 2881 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 54,244 psi | 85% | 2808 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,825 psi | 87% | 2940 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,476 psi | 85% | 2995 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,114 psi | 86% | 2894 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,390 psi | 87% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,130 psi | 88% | 2920 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,225 psi | 76% | 2864 fps | 98.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,956 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,707 psi | 53% | 2579 fps | 96.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,389 psi | 85% | 2723 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,549 psi | 85% | 2890 fps | 99.4% |
| Bofors RP3 | <<locked>> | 96% | 55,753 psi | 87% | 2910 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 56,202 psi | 88% | 2871 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,086 psi | 88% | 2815 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,565 psi | 89% | 2913 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,853 psi | 86% | 2956 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 88% | 57,421 psi | 90% | 2864 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,492 psi | 87% | 2851 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 57,159 psi | 90% | 2923 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 98% | 54,418 psi | 85% | 2940 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 82% | 56,985 psi | 89% | 2769 fps | 100% |
| Hodgdon H4895 | <<locked>> | 90% | 55,332 psi | 87% | 2890 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,251 psi | 69% | 2740 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,056 psi | 85% | 2917 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 53,737 psi | 84% | 2943 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,708 psi | 54% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 55,579 psi | 87% | 2874 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 56,637 psi | 89% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 54,288 psi | 85% | 2841 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 98% | 57,653 psi | 90% | 2864 fps | 97.6% |
| IMR 4198 | <<locked>> | 84% | 55,956 psi | 88% | 2746 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,998 psi | 86% | 2854 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,307 psi | 65% | 2700 fps | 97.3% |
| IMR 4895 | <<locked>> | 94% | 57,551 psi | 90% | 2949 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 57,580 psi | 90% | 2881 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,041 psi | 85% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 53,969 psi | 85% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,955 psi | 86% | 2808 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 54,694 psi | 86% | 2854 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,621 psi | 84% | 2841 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,010 psi | 80% | 2822 fps | 96.7% |
| Norma 201 | <<locked>> | 92% | 56,840 psi | 89% | 2871 fps | 100% |
| Norma 202 | <<locked>> | 92% | 57,464 psi | 90% | 2874 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,216 psi | 87% | 2904 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 48,559 psi | 76% | 2844 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 94% | 55,927 psi | 88% | 2933 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,790 psi | 75% | 2835 fps | 96.8% |
| Ramshot TAC | <<locked>> | 88% | 54,505 psi | 85% | 2848 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 57,479 psi | 90% | 2920 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,274 psi | 87% | 2835 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,998 psi | 55% | 1762 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 57,145 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,099 psi | 85% | 2848 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,434 psi | 88% | 2986 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,840 psi | 88% | 3018 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,660 psi | 76% | 2874 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,371 psi | 77% | 2897 fps | 98% |
| Rottweil R 901 | <<locked>> | 90% | 57,595 psi | 90% | 2851 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 57,246 psi | 90% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 55,317 psi | 87% | 2897 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 56,202 psi | 88% | 2871 fps | 96.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,621 psi | 84% | 2841 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,969 psi | 85% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,694 psi | 86% | 2854 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,010 psi | 80% | 2822 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 57,290 psi | 90% | 2838 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,405 psi | 88% | 2858 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 57,435 psi | 90% | 2963 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,521 psi | 89% | 2805 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,405 psi | 88% | 2877 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,840 psi | 89% | 2900 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,376 psi | 87% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,419 psi | 87% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,360 psi | 85% | 2795 fps | 97% |
| Somchem S321 | <<locked>> | 86% | 55,361 psi | 87% | 2867 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,592 psi | 86% | 2766 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,753 psi | 87% | 2867 fps | 99.8% |
| Somchem S355 | <<locked>> | 98% | 55,782 psi | 87% | 2894 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,323 psi | 68% | 2795 fps | 99.8% |
| Unknown powderᴾ | <<locked>> | 100% | 53,417 psi | 84% | 2910 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 86% | 55,303 psi | 87% | 2733 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,477 psi | 87% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,608 psi | 89% | 2831 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,447 psi | 85% | 2805 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,653 psi | 90% | 2874 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,271 psi | 80% | 2844 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 88% | 54,476 psi | 85% | 2831 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 55,999 psi | 88% | 2848 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,096 psi | 79% | 2848 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,984 psi | 56% | 2657 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,286 psi | 82% | 2831 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 54,911 psi | 86% | 2890 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,418 psi | 85% | 2940 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,491 psi | 85% | 2881 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% | 43,178 psi | 68% | 2595 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,166 psi | 74% | 2703 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,331 psi | 55% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,828 psi | 64% | 2641 fps | 99.9% |
| Accurate 2700 | <<locked>> | 94% | 51,300 psi | 80% | 2740 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 33,431 psi | 52% | 2490 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 36,564 psi | 57% | 2621 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 51,750 psi | 81% | 2677 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,141 psi | 82% | 2703 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,842 psi | 62% | 2615 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 33,823 psi | 53% | 2461 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 52,475 psi | 82% | 2799 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,916 psi | 66% | 2628 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 41,379 psi | 65% | 2625 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,762 psi | 76% | 2828 fps | 99.7% |
| Alliant Power Pro 2000-MR | 52.9 gr | 80% | 35,868 psi | 56% | 2621 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,025 psi | 52% | 2480 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,052 psi | 77% | 2694 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,621 psi | 56% | 2543 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,215 psi | 55% | 2585 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,474 psi | 51% | 2546 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,691 psi | 50% | 2523 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,082 psi | 80% | 2677 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,885 psi | 61% | 2612 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 32,140 psi | 50% | 2474 fps | 96.8% |
| Bofors RP7 | <<locked>> | 96% | 49,603 psi | 78% | 2766 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,816 psi | 69% | 2621 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,059 psi | 63% | 2641 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,353 psi | 70% | 2782 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 44,382 psi | 70% | 2671 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,634 psi | 81% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,203 psi | 60% | 2592 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 47,152 psi | 74% | 2818 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 53,809 psi | 84% | 2726 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 40,132 psi | 63% | 2625 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,139 psi | 47% | 2428 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,968 psi | 53% | 2539 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 98% | 50,154 psi | 79% | 2881 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,686 psi | 40% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,853 psi | 56% | 2516 fps | 97.3% |
| IMR 3031 | <<locked>> | 80% | 35,810 psi | 56% | 2559 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,025 psi | 52% | 2438 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 45,208 psi | 71% | 2657 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 49,487 psi | 78% | 2657 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 45,614 psi | 71% | 2697 fps | 95% |
| IMR 4831 | <<locked>> | 96% | 36,260 psi | 57% | 2595 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 36,477 psi | 57% | 2575 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 80% | 41,916 psi | 66% | 2628 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 46,905 psi | 74% | 2710 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,247 psi | 60% | 2592 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,306 psi | 63% | 2556 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,056 psi | 55% | 2500 fps | 98% |
| Lovex S065 | <<locked>> | 90% | 39,407 psi | 62% | 2589 fps | 95% |
| Lovex S070 | <<locked>> | 96% | 45,034 psi | 71% | 2717 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 38,812 psi | 61% | 2566 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 39,160 psi | 61% | 2582 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,998 psi | 55% | 2530 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 35,027 psi | 55% | 2575 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 34,418 psi | 54% | 2539 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 96% | 42,047 psi | 66% | 2726 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 41,872 psi | 66% | 2625 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,031 psi | 64% | 2644 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,281 psi | 71% | 2674 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,049 psi | 41% | 1578 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,949 psi | 74% | 2710 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,309 psi | 69% | 2684 fps | 95.5% |
| ReloadSwiss RS 52 | 51.3 gr | 80% | 36,898 psi | 58% | 2638 fps | 96.6% |
| ReloadSwiss RS 60 | 52.1 gr | 80% | 30,313 psi | 48% | 2497 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,811 psi | 58% | 2644 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,277 psi | 63% | 2717 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 42,496 psi | 67% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,898 psi | 58% | 2520 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,168 psi | 47% | 2418 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 96% | 49,603 psi | 78% | 2766 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,407 psi | 62% | 2589 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,247 psi | 60% | 2592 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,056 psi | 55% | 2500 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 45,034 psi | 71% | 2717 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,763 psi | 78% | 2730 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,808 psi | 83% | 2808 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,546 psi | 49% | 2470 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,937 psi | 78% | 2717 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,697 psi | 62% | 2592 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,348 psi | 60% | 2579 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,611 psi | 64% | 2533 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,402 psi | 52% | 2398 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,442 psi | 74% | 2690 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 45,121 psi | 71% | 2707 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,016 psi | 63% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,595 psi | 62% | 2595 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 31,343 psi | 49% | 2431 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 27,296 psi | 43% | 2405 fps | 95.3% |
| Unknown powder | <<locked>> | 90% | 38,421 psi | 60% | 2635 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 46,079 psi | 72% | 2602 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,857 psi | 64% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,100 psi | 57% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,869 psi | 58% | 2516 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,675 psi | 47% | 2369 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 36,796 psi | 58% | 2579 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 41,756 psi | 65% | 2621 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,578 psi | 56% | 2507 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 35,969 psi | 56% | 2579 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 33,721 psi | 53% | 2602 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,443 psi | 48% | 2395 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 44,454 psi | 70% | 2726 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 47,152 psi | 74% | 2818 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,137 psi | 74% | 2766 fps | 99.5% |
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 107 powders for 8 x 68 S loaded with the .323 | 179gr | CutEdge ESP Raptor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,722 fps to 3,018 fps. Accurate 4350 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 179.0 gr projectile in 0.323" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for 8 x 68 S with the .323 | 179gr | CutEdge ESP Raptor 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.