Load Specifications
Load data in caliber 8 x 68 S with .323 | 123gr | Norma FMJ RN bullet and 89 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 52 and Hodgdon CFE223.
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.
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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>> | 92% | 57,435 psi | 90% | 3396 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,201 psi | 85% | 3442 fps | 97.3% |
| Accurate 2230 | <<locked>> | 82% | 55,259 psi | 87% | 3448 fps | 97.8% |
| Accurate 2460 | <<locked>> | 88% | 56,507 psi | 89% | 3422 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 54,839 psi | 86% | 3402 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 54,186 psi | 85% | 3419 fps | 99.9% |
| Accurate 4064 | <<locked>> | 98% | 54,346 psi | 85% | 3438 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 57,667 psi | 90% | 3346 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,650 psi | 86% | 3317 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 94% | 56,652 psi | 89% | 3481 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 82% | 55,521 psi | 87% | 3330 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 54,317 psi | 85% | 3406 fps | 97.5% |
| ADI AR 2219 | <<locked>> | 84% | 54,476 psi | 85% | 3422 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 56,086 psi | 88% | 3438 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 92% | 55,347 psi | 87% | 3432 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 57,232 psi | 90% | 3566 fps | 99% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 56,681 psi | 89% | 3596 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 56,724 psi | 89% | 3491 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 88% | 57,290 psi | 90% | 3419 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 54,244 psi | 85% | 3455 fps | 97.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 50,705 psi | 79% | 3474 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 56,478 psi | 89% | 3346 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 57,101 psi | 89% | 3330 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 56,927 psi | 89% | 3488 fps | 97.7% |
| Bofors RP3ᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3510 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,882 psi | 86% | 3369 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 92% | 55,100 psi | 86% | 3465 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 90% | 56,623 psi | 89% | 3566 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 88% | 56,797 psi | 89% | 3458 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 54,476 psi | 85% | 3419 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 55,506 psi | 87% | 3451 fps | 96.7% |
| Hodgdon H4198 | <<locked>> | 82% | 55,898 psi | 88% | 3350 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 57,101 psi | 89% | 3494 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 55,854 psi | 88% | 3520 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 53% | 2136 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 55,201 psi | 87% | 3438 fps | 98.7% |
| IMR 3031 | <<locked>> | 94% | 55,956 psi | 88% | 3494 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 57,217 psi | 90% | 3451 fps | 98.2% |
| IMR 4198 | <<locked>> | 88% | 57,479 psi | 90% | 3376 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 55,550 psi | 87% | 3497 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 92% | 56,086 psi | 88% | 3438 fps | 99.3% |
| Lovex D073.4 | <<locked>> | 82% | 56,072 psi | 88% | 3435 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 88% | 56,391 psi | 88% | 3425 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 94% | 55,738 psi | 87% | 3458 fps | 99.9% |
| Lovex S060 | <<locked>> | 94% | 57,087 psi | 89% | 3406 fps | 98.6% |
| Lovex S062 | <<locked>> | 98% | 56,347 psi | 88% | 3448 fps | 99.4% |
| Norma 200 | <<locked>> | 84% | 57,319 psi | 90% | 3389 fps | 100% |
| Norma 201 | <<locked>> | 94% | 55,259 psi | 87% | 3419 fps | 99.2% |
| Norma 202 | <<locked>> | 94% | 55,593 psi | 87% | 3438 fps | 100% |
| Norma 203B | <<locked>> | 98% | 56,985 psi | 89% | 3504 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 98% | 57,711 psi | 90% | 3527 fps | 98.6% |
| Ramshot TAC | <<locked>> | 92% | 57,043 psi | 89% | 3438 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 56,043 psi | 88% | 3465 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 57,740 psi | 90% | 3435 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,287 psi | 54% | 2188 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 55,840 psi | 88% | 3432 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 53,882 psi | 84% | 3527 fps | 97.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 54,201 psi | 85% | 3563 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 92% | 56,188 psi | 88% | 3419 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 55,709 psi | 87% | 3415 fps | 99.2% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 53,200 psi | 83% | 3425 fps | 98.6% |
| Shooters World AR Plus | <<locked>> | 82% | 56,072 psi | 88% | 3435 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 55,738 psi | 87% | 3458 fps | 99.9% |
| Shooters World Precision | <<locked>> | 98% | 56,347 psi | 88% | 3448 fps | 99.4% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 56,043 psi | 88% | 3389 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 57,392 psi | 90% | 3074 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,969 psi | 86% | 3425 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 55,535 psi | 87% | 3497 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,824 psi | 86% | 3389 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 55,042 psi | 86% | 3406 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 55,259 psi | 87% | 3442 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 57,725 psi | 90% | 3376 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 57,159 psi | 90% | 3360 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 57,711 psi | 90% | 3478 fps | 99.6% |
| Somchem S335 | <<locked>> | 94% | 56,449 psi | 88% | 3366 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 54,317 psi | 85% | 3402 fps | 98.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 53,911 psi | 84% | 3428 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,856 psi | 61% | 3199 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 82% | 55,390 psi | 87% | 3268 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 57,232 psi | 90% | 3350 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 57,421 psi | 90% | 3363 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 54,404 psi | 85% | 3396 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 56,202 psi | 88% | 3406 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 52,199 psi | 82% | 3353 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 92% | 56,826 psi | 89% | 3438 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 96% | 54,563 psi | 86% | 3399 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,921 psi | 75% | 3271 fps | 97.6% |
| Winchester 748 | <<locked>> | 92% | 55,811 psi | 87% | 3488 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 94% | 54,984 psi | 86% | 3451 fps | 98.8% |
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% | 39,407 psi | 62% | 3068 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 50,633 psi | 79% | 3369 fps | 96.5% |
| Accurate 2230 | <<locked>> | 80% | 51,285 psi | 80% | 3376 fps | 97.1% |
| Accurate 2460 | <<locked>> | 80% | 42,801 psi | 67% | 3166 fps | 98.9% |
| Accurate 2495 | <<locked>> | 80% | 31,836 psi | 50% | 2927 fps | 98.9% |
| Accurate 2520 | <<locked>> | 80% | 38,130 psi | 60% | 3094 fps | 97.6% |
| Accurate 4064 | <<locked>> | 80% | 30,095 psi | 47% | 2890 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 80% | 47,747 psi | 75% | 3179 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,095 psi | 75% | 3199 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 84% | 41,147 psi | 64% | 3159 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 52,127 psi | 82% | 3278 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 45,005 psi | 71% | 3225 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 47,543 psi | 75% | 3294 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,174 psi | 60% | 3061 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 36,637 psi | 57% | 3091 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,816 psi | 69% | 3294 fps | 96.6% |
| Alliant Power Pro 2000-MR | 70.1 gr | 90% | 46,006 psi | 72% | 3369 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 38,566 psi | 60% | 3120 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,672 psi | 70% | 3199 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 44,643 psi | 70% | 3261 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 94% | 41,350 psi | 65% | 3258 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 53,127 psi | 83% | 3291 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,833 psi | 73% | 3159 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 46,195 psi | 72% | 3284 fps | 95.3% |
| Bofors RP3 | <<locked>> | 88% | 38,000 psi | 60% | 3114 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,292 psi | 63% | 3071 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,143 psi | 57% | 3061 fps | 95.7% |
| Hodgdon CFE223 | 67 gr | 84% | 45,861 psi | 72% | 3353 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 43,308 psi | 68% | 3212 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 44,222 psi | 69% | 3225 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 94% | 48,399 psi | 76% | 3317 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 52,504 psi | 82% | 3291 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 38,928 psi | 61% | 3117 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 39,871 psi | 62% | 3186 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,237 psi | 40% | 1916 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 39,972 psi | 63% | 3123 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 34,896 psi | 55% | 3064 fps | 98.8% |
| IMR 4064 | <<locked>> | 90% | 44,440 psi | 70% | 3205 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 45,411 psi | 71% | 3173 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 42,772 psi | 67% | 3235 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 38,174 psi | 60% | 3061 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 52,170 psi | 82% | 3366 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 42,757 psi | 67% | 3166 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 80% | 34,345 psi | 54% | 3005 fps | 96.3% |
| Lovex S060 | <<locked>> | 84% | 42,090 psi | 66% | 3107 fps | 95.4% |
| Lovex S062 | <<locked>> | 84% | 36,347 psi | 57% | 3028 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 50,386 psi | 79% | 3278 fps | 100% |
| Norma 201 | <<locked>> | 82% | 37,884 psi | 59% | 3054 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 35,331 psi | 55% | 3012 fps | 97.4% |
| Norma 203B | <<locked>> | 88% | 41,031 psi | 64% | 3179 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 90% | 43,903 psi | 69% | 3258 fps | 95.7% |
| Ramshot TAC | <<locked>> | 90% | 53,548 psi | 84% | 3373 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,583 psi | 67% | 3199 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,524 psi | 65% | 3110 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,396 psi | 40% | 1962 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,830 psi | 67% | 3176 fps | 98.3% |
| ReloadSwiss RS 52 | 66.4 gr | 88% | 43,482 psi | 68% | 3310 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 33,837 psi | 53% | 3061 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 39,088 psi | 61% | 3074 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 84% | 38,203 psi | 60% | 3051 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 90% | 38,072 psi | 60% | 3107 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 52,170 psi | 82% | 3366 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,345 psi | 54% | 3005 fps | 96.3% |
| Shooters World Precision | <<locked>> | 84% | 36,347 psi | 57% | 3028 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,455 psi | 71% | 3192 fps | 97.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,706 psi | 81% | 2992 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 48,095 psi | 75% | 3301 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 42,598 psi | 67% | 3235 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,179 psi | 71% | 3212 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 51,213 psi | 80% | 3337 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,395 psi | 66% | 3182 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,130 psi | 58% | 2976 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,327 psi | 48% | 2802 fps | 96.8% |
| Somchem S321 | <<locked>> | 80% | 40,872 psi | 64% | 3146 fps | 96.8% |
| Somchem S335 | <<locked>> | 80% | 36,608 psi | 57% | 2976 fps | 98.4% |
| Somchem S341 | <<locked>> | 84% | 41,118 psi | 64% | 3136 fps | 95% |
| Somchem S355 | <<locked>> | 90% | 39,262 psi | 62% | 3123 fps | 95.2% |
| Somchem S365 | <<locked>> | 98% | 36,506 psi | 57% | 3133 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 52,025 psi | 82% | 3219 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 42,163 psi | 66% | 3087 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,144 psi | 58% | 2986 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 32,256 psi | 51% | 2940 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,504 psi | 53% | 2940 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 88% | 34,998 psi | 55% | 2986 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 37,956 psi | 59% | 3051 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 32,271 psi | 51% | 2913 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 41,727 psi | 65% | 3133 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,767 psi | 58% | 3087 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 84% | 38,986 psi | 61% | 3120 fps | 95.2% |
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 89 powders for 8 x 68 S loaded with the .323 | 123gr | Norma FMJ RN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,596 fps; across all powders the maximum-charge window runs from 2,136 fps to 3,596 fps. Alliant Reloder- TS 15.5 gives the best case fill at 100 %, and 89 of the 89 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. Alliant Reloder- TS 15.5, Alliant Reloder-17, Bofors RP3 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 52, Hodgdon CFE223 rank at the top here: for 8 x 68 S with the .323 | 123gr | Norma FMJ RN 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.