Load Specifications
Bullet:.323 | 160gr | Hasler ARIETE
Bullet Manufacturer:Hasler
Bullet Weight:160 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:1:12.5
Load data in caliber 8 x 68 S with .323 | 160gr | Hasler ARIETE bullet and 105 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% | 56,608 psi | 89% | 2989 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,114 psi | 86% | 3015 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,143 psi | 85% | 3002 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,072 psi | 89% | 3081 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,071 psi | 86% | 2999 fps | 95.9% |
| Accurate 4064 | <<locked>> | 96% | 57,682 psi | 90% | 3097 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,198 psi | 79% | 3061 fps | 98.5% |
| Accurate LT-30 | <<locked>> | 82% | 55,869 psi | 88% | 2933 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,333 psi | 88% | 2959 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,782 psi | 87% | 3091 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 96% | 56,913 psi | 89% | 3087 fps | 99.5% |
| ADI AR 2219 | <<locked>> | 82% | 57,014 psi | 89% | 3061 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,940 psi | 86% | 3041 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,390 psi | 87% | 3022 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,782 psi | 89% | 3159 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,535 psi | 87% | 3212 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,492 psi | 89% | 3107 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,304 psi | 88% | 2999 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,319 psi | 90% | 3133 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,226 psi | 77% | 3071 fps | 98.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 57,653 psi | 90% | 3238 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,592 psi | 54% | 2762 fps | 96.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,274 psi | 87% | 2927 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,767 psi | 87% | 3104 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 57,072 psi | 89% | 3123 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 57,464 psi | 90% | 3081 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,000 psi | 89% | 3028 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,114 psi | 85% | 3071 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,173 psi | 88% | 3176 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 84% | 55,695 psi | 87% | 3041 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,826 psi | 89% | 3068 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,766 psi | 86% | 3081 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,824 psi | 84% | 3120 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 90% | 56,333 psi | 88% | 3100 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,368 psi | 71% | 2943 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,492 psi | 87% | 3133 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,376 psi | 87% | 3159 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,882 psi | 55% | 1873 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,346 psi | 85% | 3051 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 55,869 psi | 88% | 3087 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,449 psi | 88% | 3068 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,869 psi | 89% | 3048 fps | 97.1% |
| IMR 4198 | <<locked>> | 84% | 56,623 psi | 89% | 2956 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,130 psi | 88% | 3064 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,892 psi | 75% | 2999 fps | 98.2% |
| IMR 4895 | <<locked>> | 92% | 55,042 psi | 86% | 3110 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 54,940 psi | 86% | 3041 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,056 psi | 86% | 3025 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,129 psi | 86% | 3064 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,709 psi | 87% | 3015 fps | 99.7% |
| Lovex S062 | <<locked>> | 94% | 55,767 psi | 87% | 3064 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,926 psi | 86% | 3054 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 3028 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 54,404 psi | 85% | 3035 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,955 psi | 86% | 3038 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,391 psi | 88% | 3120 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 50,024 psi | 78% | 3054 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 94% | 57,246 psi | 90% | 3146 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,168 psi | 77% | 3045 fps | 96.6% |
| Ramshot TAC | <<locked>> | 88% | 55,637 psi | 87% | 3058 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,940 psi | 86% | 3081 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,391 psi | 88% | 3048 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,085 psi | 55% | 1913 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,563 psi | 86% | 3025 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,347 psi | 87% | 3061 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,766 psi | 84% | 3143 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,276 psi | 90% | 3238 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,038 psi | 78% | 3084 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,763 psi | 80% | 3110 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 88% | 55,143 psi | 86% | 3015 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,723 psi | 86% | 3028 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 56,695 psi | 89% | 3110 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 57,464 psi | 90% | 3081 fps | 96.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,926 psi | 86% | 3054 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,129 psi | 86% | 3064 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,767 psi | 87% | 3064 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 3028 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,346 psi | 85% | 2992 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,522 psi | 90% | 3074 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,187 psi | 86% | 3123 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 57,392 psi | 90% | 3022 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 57,435 psi | 90% | 3087 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,244 psi | 85% | 3058 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,347 psi | 88% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,536 psi | 89% | 2969 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 3005 fps | 96.9% |
| Somchem S321 | <<locked>> | 86% | 56,478 psi | 89% | 3081 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,564 psi | 87% | 2972 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,000 psi | 89% | 3081 fps | 99.8% |
| Somchem S355 | <<locked>> | 98% | 57,203 psi | 90% | 3110 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,338 psi | 69% | 2995 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 56,043 psi | 88% | 2940 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,405 psi | 88% | 2959 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 57,638 psi | 90% | 3041 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,550 psi | 87% | 3012 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,332 psi | 87% | 3035 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 3054 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 88% | 55,651 psi | 87% | 3045 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 57,363 psi | 90% | 3061 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,532 psi | 81% | 3058 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,086 psi | 58% | 2848 fps | 96.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,766 psi | 84% | 3041 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 55,303 psi | 87% | 3094 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 3123 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,114 psi | 85% | 3068 fps | 99.8% |
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% | 43,874 psi | 69% | 2792 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,037 psi | 75% | 2907 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,013 psi | 56% | 2690 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,134 psi | 68% | 2854 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 51,314 psi | 80% | 2936 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 34,055 psi | 53% | 2674 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 37,652 psi | 59% | 2812 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 52,605 psi | 82% | 2884 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,997 psi | 83% | 2913 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,408 psi | 63% | 2805 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 36,637 psi | 57% | 2697 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 53,330 psi | 84% | 3009 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,540 psi | 67% | 2822 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 42,047 psi | 66% | 2818 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,545 psi | 78% | 3038 fps | 99.5% |
| Alliant Power Pro 2000-MR | 58.8 gr | 80% | 36,535 psi | 57% | 2812 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,576 psi | 53% | 2661 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,676 psi | 78% | 2900 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,216 psi | 57% | 2726 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 38,232 psi | 60% | 2831 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 84% | 33,170 psi | 52% | 2730 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,576 psi | 51% | 2707 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,764 psi | 81% | 2877 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,523 psi | 62% | 2802 fps | 96.2% |
| Bofors RP3 | <<locked>> | 80% | 32,808 psi | 51% | 2654 fps | 96.4% |
| Bofors RP7 | <<locked>> | 96% | 50,575 psi | 79% | 2969 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,556 psi | 70% | 2818 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,901 psi | 64% | 2835 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,194 psi | 71% | 2982 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 48,863 psi | 77% | 2936 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,661 psi | 78% | 2959 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,899 psi | 61% | 2779 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 96% | 47,050 psi | 74% | 2995 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,741 psi | 64% | 2818 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,750 psi | 51% | 2657 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,753 psi | 58% | 2776 fps | 97.6% |
| Hodgdon Superformance | <<locked>> | 98% | 51,488 psi | 81% | 3091 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,759 psi | 40% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,218 psi | 61% | 2766 fps | 97.7% |
| IMR 3031 | <<locked>> | 80% | 40,103 psi | 63% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,071 psi | 57% | 2680 fps | 95.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,024 psi | 78% | 2930 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 50,212 psi | 79% | 2864 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,603 psi | 78% | 2953 fps | 95.5% |
| IMR 4831 | <<locked>> | 92% | 36,521 psi | 57% | 2766 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 37,072 psi | 58% | 2759 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 80% | 42,540 psi | 67% | 2822 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 47,747 psi | 75% | 2910 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 39,015 psi | 61% | 2782 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 40,930 psi | 64% | 2746 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 35,665 psi | 56% | 2684 fps | 97.6% |
| Lovex S065 | <<locked>> | 92% | 42,743 psi | 67% | 2831 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 45,905 psi | 72% | 2913 fps | 95% |
| Norma 201 | <<locked>> | 80% | 39,421 psi | 62% | 2756 fps | 98.5% |
| Norma 202 | <<locked>> | 80% | 39,726 psi | 62% | 2772 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 35,578 psi | 56% | 2713 fps | 96.2% |
| Norma URP | <<locked>> | 92% | 38,203 psi | 60% | 2818 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 35,114 psi | 55% | 2720 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 98% | 45,818 psi | 72% | 2979 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 42,438 psi | 67% | 2815 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,771 psi | 65% | 2841 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,035 psi | 72% | 2871 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,049 psi | 41% | 1713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,863 psi | 75% | 2917 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,353 psi | 71% | 2884 fps | 95.3% |
| ReloadSwiss RS 52 | 57 gr | 80% | 37,623 psi | 59% | 2828 fps | 96.2% |
| ReloadSwiss RS 60 | 57.9 gr | 80% | 30,893 psi | 48% | 2674 fps | 97.2% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,652 psi | 59% | 2831 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,220 psi | 65% | 2910 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 43,250 psi | 68% | 2815 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 37,434 psi | 59% | 2703 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 30,806 psi | 48% | 2592 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 96% | 50,575 psi | 79% | 2969 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,743 psi | 67% | 2831 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,015 psi | 61% | 2782 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 35,665 psi | 56% | 2684 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 96% | 45,905 psi | 72% | 2913 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,633 psi | 79% | 2933 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,679 psi | 84% | 3018 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,330 psi | 54% | 2707 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,575 psi | 79% | 2923 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,379 psi | 63% | 2779 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,030 psi | 61% | 2769 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,118 psi | 64% | 2723 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,881 psi | 53% | 2575 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,675 psi | 76% | 2890 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 45,832 psi | 72% | 2904 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 40,611 psi | 64% | 2723 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,263 psi | 63% | 2785 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 31,908 psi | 50% | 2608 fps | 95.4% |
| Somchem S365 | <<locked>> | 88% | 29,776 psi | 47% | 2638 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 46,659 psi | 73% | 2799 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,379 psi | 65% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,666 psi | 57% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,565 psi | 59% | 2703 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 30,298 psi | 47% | 2543 fps | 96.4% |
| Vihtavuori N160 | <<locked>> | 90% | 37,550 psi | 59% | 2762 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 42,496 psi | 67% | 2815 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 36,143 psi | 57% | 2687 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 39,465 psi | 62% | 2825 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 98% | 34,592 psi | 54% | 2785 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 33,315 psi | 52% | 2628 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 41,843 psi | 66% | 2861 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 47,268 psi | 74% | 3002 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,305 psi | 60% | 2772 fps | 97.6% |
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 x 68 S loaded with the .323 | 160gr | Hasler ARIETE. Alliant Reloder-17 delivers the highest muzzle velocity at 3,238 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,238 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 48–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.323" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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 | 160gr | Hasler ARIETE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Alliant Reloder-26, Norma 204 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.