Load Specifications
Bullet Manufacturer:Remington
Bullet Weight:170 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
Load data in caliber 8 x 68 S with .323 | 170gr | Remington SP Core-Lokt bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Hodgdon H414.
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>> | 84% | 57,725 psi | 90% | 2936 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,927 psi | 89% | 2963 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,607 psi | 86% | 2979 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,651 psi | 87% | 2966 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,903 psi | 69% | 2861 fps | 96.8% |
| Accurate 4064 | <<locked>> | 90% | 56,797 psi | 89% | 3012 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,145 psi | 90% | 3110 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 56,855 psi | 89% | 3048 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,433 psi | 85% | 2995 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,695 psi | 87% | 2995 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,782 psi | 89% | 2966 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,855 psi | 89% | 3179 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,636 psi | 86% | 3018 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,129 psi | 86% | 3041 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,433 psi | 85% | 3114 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,854 psi | 88% | 3150 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,742 psi | 65% | 2890 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,949 psi | 74% | 3068 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,811 psi | 89% | 3064 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,274 psi | 87% | 3035 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,259 psi | 87% | 3005 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,188 psi | 90% | 2972 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,303 psi | 87% | 3025 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,580 psi | 90% | 3133 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,275 psi | 88% | 3051 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 96% | 56,101 psi | 88% | 3104 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 94% | 56,550 psi | 89% | 3064 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 57,435 psi | 90% | 3058 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,389 psi | 85% | 3035 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,130 psi | 90% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,710 psi | 89% | 3143 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1864 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,100 psi | 86% | 3005 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,609 psi | 90% | 3038 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,334 psi | 90% | 3031 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,058 psi | 89% | 3009 fps | 98.3% |
| IMR 4350 | <<locked>> | 98% | 55,695 psi | 87% | 3031 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,159 psi | 90% | 3038 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 3097 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,565 psi | 89% | 3074 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,695 psi | 87% | 2995 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,014 psi | 89% | 3022 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,217 psi | 88% | 2972 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,392 psi | 90% | 3025 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,521 psi | 89% | 3028 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 57,696 psi | 90% | 3068 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 55,579 psi | 87% | 2989 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,246 psi | 88% | 2992 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,375 psi | 85% | 3028 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,492 psi | 89% | 3084 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 46,818 psi | 73% | 3022 fps | 96.4% |
| Norma URP | <<locked>> | 98% | 55,825 psi | 87% | 3094 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 54,998 psi | 86% | 3054 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,650 psi | 86% | 3091 fps | 98.8% |
| Ramshot TAC | <<locked>> | 84% | 55,956 psi | 88% | 3015 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,753 psi | 87% | 3031 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,391 psi | 88% | 2992 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,289 psi | 57% | 1909 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,362 psi | 88% | 3028 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,695 psi | 87% | 3110 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,434 psi | 87% | 3146 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,768 psi | 89% | 3130 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,144 psi | 88% | 3163 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 56,579 psi | 89% | 2972 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,028 psi | 88% | 2986 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,405 psi | 87% | 3028 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,259 psi | 87% | 3005 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,521 psi | 89% | 3028 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,014 psi | 89% | 3022 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,392 psi | 90% | 3025 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,696 psi | 90% | 3068 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,145 psi | 90% | 3094 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,549 psi | 85% | 2992 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,274 psi | 87% | 3018 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,869 psi | 89% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,435 psi | 90% | 2923 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,043 psi | 89% | 2982 fps | 98.3% |
| Somchem S321 | <<locked>> | 82% | 57,101 psi | 89% | 3028 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,304 psi | 88% | 2920 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,186 psi | 85% | 2982 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,434 psi | 87% | 3022 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,056 psi | 85% | 3094 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2969 fps | 96.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,565 psi | 89% | 2884 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,159 psi | 90% | 2904 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,927 psi | 88% | 2946 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,768 psi | 89% | 2966 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,898 psi | 89% | 2999 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,737 psi | 86% | 3035 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,231 psi | 88% | 2995 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,839 psi | 86% | 2963 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,421 psi | 90% | 3094 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,064 psi | 72% | 2969 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,926 psi | 86% | 3009 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,318 psi | 88% | 3045 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,333 psi | 88% | 3107 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,333 psi | 59% | 2904 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,274 psi | 87% | 3025 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% | 50,937 psi | 80% | 2841 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,801 psi | 69% | 2766 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,184 psi | 80% | 2927 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,687 psi | 72% | 2792 fps | 95.2% |
| Accurate 3100 | <<locked>> | 96% | 38,232 psi | 60% | 2743 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,437 psi | 65% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,764 psi | 51% | 2631 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 47,050 psi | 74% | 2884 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,914 psi | 63% | 2720 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,124 psi | 77% | 2887 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,777 psi | 78% | 2867 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,004 psi | 67% | 2920 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,798 psi | 62% | 2746 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,699 psi | 67% | 2815 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,924 psi | 52% | 2644 fps | 95.1% |
| Alliant Reloder-17 | 62.9 gr | 80% | 34,432 psi | 54% | 2717 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,443 psi | 48% | 2602 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,375 psi | 55% | 2795 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,499 psi | 73% | 2890 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 39,740 psi | 62% | 2756 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 45,847 psi | 72% | 2838 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,705 psi | 79% | 2874 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,269 psi | 76% | 2910 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,534 psi | 84% | 3071 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 40,379 psi | 63% | 2759 fps | 97% |
| Hodgdon H414 | 67.7 gr | 88% | 42,888 psi | 67% | 2864 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 49,617 psi | 78% | 2946 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,500 psi | 74% | 2894 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,326 psi | 44% | 2484 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,729 psi | 69% | 2867 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 45,658 psi | 72% | 2943 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 42% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,513 psi | 71% | 2841 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 47,485 psi | 74% | 2887 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,930 psi | 66% | 2759 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,469 psi | 70% | 2782 fps | 95.8% |
| IMR 4350 | <<locked>> | 92% | 46,064 psi | 72% | 2861 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,585 psi | 70% | 2812 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 34,026 psi | 53% | 2648 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 43,758 psi | 69% | 2848 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 49,124 psi | 77% | 2887 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,470 psi | 73% | 2858 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,833 psi | 73% | 2815 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 42,061 psi | 66% | 2766 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 39,088 psi | 61% | 2703 fps | 95.7% |
| Lovex S070 | <<locked>> | 88% | 42,264 psi | 66% | 2789 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,064 psi | 72% | 2831 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,412 psi | 73% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,061 psi | 66% | 2802 fps | 98.9% |
| Norma 204 | <<locked>> | 94% | 49,269 psi | 77% | 2959 fps | 95% |
| Norma MRP | <<locked>> | 98% | 43,627 psi | 68% | 2956 fps | 95.4% |
| Norma URP | <<locked>> | 84% | 35,259 psi | 55% | 2694 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 41,785 psi | 65% | 2818 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 39,363 psi | 62% | 2792 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 49,110 psi | 77% | 2897 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,791 psi | 76% | 2920 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,866 psi | 83% | 2936 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,948 psi | 42% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,654 psi | 64% | 2740 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,368 psi | 71% | 2930 fps | 99% |
| ReloadSwiss RS 60 | 62.9 gr | 80% | 36,637 psi | 57% | 2785 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,853 psi | 55% | 2707 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 37,188 psi | 58% | 2776 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,096 psi | 79% | 2871 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,961 psi | 69% | 2782 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,362 psi | 59% | 2697 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 45,847 psi | 72% | 2838 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,088 psi | 61% | 2703 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,470 psi | 73% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,061 psi | 66% | 2766 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 42,264 psi | 66% | 2789 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,334 psi | 60% | 2749 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,616 psi | 75% | 2874 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,629 psi | 72% | 2851 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,152 psi | 74% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,421 psi | 62% | 2635 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,787 psi | 69% | 2756 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 53,417 psi | 84% | 2972 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,949 psi | 74% | 2779 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,355 psi | 74% | 2867 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 38,014 psi | 60% | 2700 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 27,789 psi | 44% | 2526 fps | 96.4% |
| Somchem S385 | <<locked>> | 96% | 43,903 psi | 69% | 2854 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 53,084 psi | 83% | 2835 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,558 psi | 75% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,453 psi | 68% | 2756 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,135 psi | 69% | 2769 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,274 psi | 57% | 2635 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 34,461 psi | 54% | 2635 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,414 psi | 77% | 2887 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,453 psi | 67% | 2756 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,953 psi | 53% | 2635 fps | 95% |
| Vihtavuori N555 | <<locked>> | 88% | 30,893 psi | 48% | 2625 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,082 psi | 50% | 2556 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 49,269 psi | 77% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,076 psi | 68% | 2867 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,892 psi | 45% | 2628 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,237 psi | 71% | 2854 fps | 99.6% |
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 98 powders for 8 x 68 S loaded with the .323 | 170gr | Remington SP Core-Lokt. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,179 fps; across all powders the maximum-charge window runs from 1,864 fps to 3,179 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 Reloder-17, ReloadSwiss RS 60, Hodgdon H414 rank at the top here: for 8 x 68 S with the .323 | 170gr | Remington SP Core-Lokt 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.