Load Specifications
Load data in caliber 8 x 68 S with .323 | 108gr | Norma FMJ RN bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and IMR 3031.
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 1680 | <<locked>> | 82% | 56,028 psi | 88% | 3488 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 55,680 psi | 87% | 3560 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 56,623 psi | 89% | 3661 fps | 96.3% |
| Accurate 2230 | <<locked>> | 84% | 53,867 psi | 84% | 3596 fps | 96.2% |
| Accurate 2460 | <<locked>> | 90% | 54,752 psi | 86% | 3573 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 55,912 psi | 88% | 3612 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 56,246 psi | 88% | 3635 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 51,721 psi | 81% | 3576 fps | 99.7% |
| Accurate LT-30 | <<locked>> | 88% | 56,826 psi | 89% | 3517 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 57,246 psi | 90% | 3540 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 96% | 55,071 psi | 86% | 3625 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 86% | 57,682 psi | 90% | 3563 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,765 psi | 83% | 3547 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 88% | 56,913 psi | 89% | 3652 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 54,476 psi | 85% | 3586 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 96% | 56,637 psi | 89% | 3655 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 55,434 psi | 87% | 3717 fps | 97.8% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 51,227 psi | 80% | 3563 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 90% | 55,724 psi | 87% | 3593 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 55,869 psi | 88% | 3655 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 84% | 55,419 psi | 87% | 3524 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 56,072 psi | 88% | 3494 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 55,071 psi | 86% | 3625 fps | 95.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,488 psi | 81% | 3576 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 94% | 57,145 psi | 90% | 3583 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 96% | 57,145 psi | 90% | 3678 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 92% | 54,824 psi | 86% | 3707 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 90% | 55,085 psi | 86% | 3619 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 56,797 psi | 89% | 3642 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 84% | 55,361 psi | 87% | 3524 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 96% | 55,535 psi | 87% | 3642 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 54,128 psi | 85% | 3661 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,388 psi | 52% | 2260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 57,319 psi | 90% | 3648 fps | 98% |
| IMR 3031 | <<locked>> | 98% | 57,261 psi | 90% | 3711 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 3593 fps | 96.7% |
| IMR 4198 | <<locked>> | 90% | 56,144 psi | 88% | 3556 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 57,174 psi | 90% | 3701 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 94% | 54,476 psi | 85% | 3586 fps | 98.2% |
| Lovex D073.4 | <<locked>> | 84% | 54,534 psi | 85% | 3593 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 90% | 54,911 psi | 86% | 3576 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 98% | 57,479 psi | 90% | 3665 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 56,782 psi | 89% | 3448 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 55,854 psi | 88% | 3553 fps | 97.2% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,404 psi | 85% | 3593 fps | 98.3% |
| Norma 200 | <<locked>> | 86% | 55,738 psi | 87% | 3563 fps | 100% |
| Norma 201 | <<locked>> | 98% | 57,203 psi | 90% | 3629 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 57,479 psi | 90% | 3652 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,853 psi | 86% | 3638 fps | 97.1% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 55,985 psi | 88% | 3665 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 54,331 psi | 85% | 3606 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 92% | 56,710 psi | 89% | 3586 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,504 psi | 53% | 2313 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,505 psi | 85% | 3586 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 55,434 psi | 87% | 3730 fps | 96.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,052 psi | 77% | 3619 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 94% | 54,534 psi | 85% | 3576 fps | 99.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3619 fps | 98.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,572 psi | 75% | 3488 fps | 96.3% |
| Shooters World AR Plus | <<locked>> | 84% | 54,534 psi | 85% | 3593 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 98% | 57,479 psi | 90% | 3665 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,404 psi | 85% | 3593 fps | 98.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 54,882 psi | 86% | 3540 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 56,768 psi | 89% | 3261 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 57,682 psi | 90% | 3658 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 50,169 psi | 79% | 3563 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 56,594 psi | 89% | 3609 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 57,276 psi | 90% | 3648 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 56,391 psi | 88% | 3537 fps | 99.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,127 psi | 82% | 3458 fps | 99.8% |
| Somchem S321 | <<locked>> | 92% | 56,289 psi | 88% | 3632 fps | 98.7% |
| Somchem S335 | <<locked>> | 96% | 55,172 psi | 86% | 3527 fps | 99.9% |
| Somchem S341 | <<locked>> | 96% | 56,478 psi | 89% | 3606 fps | 97.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,646 psi | 76% | 3494 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 86% | 57,522 psi | 90% | 3501 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 55,941 psi | 88% | 3520 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 55,898 psi | 88% | 3527 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 55,550 psi | 87% | 3602 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 54,549 psi | 85% | 3560 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,021 psi | 74% | 3422 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 94% | 55,405 psi | 87% | 3589 fps | 98.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 56,579 psi | 89% | 3609 fps | 99.8% |
| Winchester 748 | <<locked>> | 94% | 53,824 psi | 84% | 3632 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 98% | 57,116 psi | 90% | 3661 fps | 98.1% |
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 1680 | <<locked>> | 80% | 52,243 psi | 82% | 3425 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,694 psi | 56% | 3146 fps | 98.5% |
| Accurate 2200 | <<locked>> | 84% | 53,127 psi | 83% | 3593 fps | 95.6% |
| Accurate 2230 | <<locked>> | 82% | 50,096 psi | 79% | 3520 fps | 95.4% |
| Accurate 2460 | <<locked>> | 80% | 38,653 psi | 61% | 3235 fps | 96.8% |
| Accurate 2495 | <<locked>> | 80% | 28,137 psi | 44% | 2976 fps | 96.4% |
| Accurate 2520 | <<locked>> | 82% | 36,550 psi | 57% | 3215 fps | 95.6% |
| Accurate 4064 | <<locked>> | 86% | 32,561 psi | 51% | 3127 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 44,193 psi | 69% | 3278 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 80% | 44,541 psi | 70% | 3294 fps | 97.8% |
| ADI AR 2206H | <<locked>> | 92% | 48,486 psi | 76% | 3494 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 47,819 psi | 75% | 3399 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 49,588 psi | 78% | 3481 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 43,134 psi | 68% | 3383 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 42,221 psi | 66% | 3327 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 32,779 psi | 51% | 3166 fps | 99.7% |
| Alliant Power Pro 1200-R | 61.4 gr | 84% | 45,237 psi | 71% | 3501 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 42,090 psi | 66% | 3366 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,683 psi | 64% | 3297 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 96% | 49,081 psi | 77% | 3520 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,965 psi | 77% | 3409 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,105 psi | 68% | 3251 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 51,590 psi | 81% | 3556 fps | 95.1% |
| Bofors RP3 | <<locked>> | 94% | 41,800 psi | 66% | 3369 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 82% | 39,334 psi | 62% | 3209 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 40,190 psi | 63% | 3327 fps | 95.5% |
| Hodgdon CFE223 | 71.7 gr | 90% | 51,024 psi | 80% | 3629 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 39,247 psi | 62% | 3291 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 40,103 psi | 63% | 3301 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 80% | 48,631 psi | 76% | 3399 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 45,687 psi | 72% | 3442 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 44,063 psi | 69% | 3448 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,671 psi | 39% | 2031 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 44,295 psi | 69% | 3386 fps | 95% |
| IMR 3031 | 56.5 gr | 80% | 31,256 psi | 49% | 3123 fps | 96.4% |
| IMR 4064 | <<locked>> | 96% | 48,805 psi | 76% | 3461 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 41,684 psi | 65% | 3284 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 46,934 psi | 74% | 3497 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 86% | 42,221 psi | 66% | 3327 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 47,282 psi | 74% | 3451 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 38,595 psi | 60% | 3228 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 84% | 35,244 psi | 55% | 3192 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 53,592 psi | 84% | 3399 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 46,412 psi | 73% | 3363 fps | 95.1% |
| Lovex S062 | <<locked>> | 92% | 42,177 psi | 66% | 3337 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 45,992 psi | 72% | 3389 fps | 100% |
| Norma 201 | <<locked>> | 88% | 41,495 psi | 65% | 3307 fps | 95.2% |
| Norma 202 | <<locked>> | 82% | 34,171 psi | 54% | 3140 fps | 95.5% |
| Norma 203B | <<locked>> | 96% | 48,167 psi | 75% | 3507 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 96% | 48,762 psi | 76% | 3524 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 47,384 psi | 74% | 3465 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 88% | 49,734 psi | 78% | 3451 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,743 psi | 39% | 2080 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,015 psi | 61% | 3251 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 51,648 psi | 81% | 3655 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 40,045 psi | 63% | 3386 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 35,578 psi | 56% | 3146 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 90% | 42,061 psi | 66% | 3310 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 98% | 44,512 psi | 70% | 3422 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 47,282 psi | 74% | 3451 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 35,244 psi | 55% | 3192 fps | 95.1% |
| Shooters World Precision | <<locked>> | 92% | 42,177 psi | 66% | 3337 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 44,585 psi | 70% | 3337 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,457 psi | 76% | 3133 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,787 psi | 69% | 3386 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 46,920 psi | 74% | 3491 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,104 psi | 64% | 3304 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 47,036 psi | 74% | 3448 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,924 psi | 53% | 3048 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 31,314 psi | 49% | 2986 fps | 95.7% |
| Somchem S321 | <<locked>> | 82% | 39,755 psi | 62% | 3284 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 33,359 psi | 52% | 3048 fps | 96.2% |
| Somchem S341 | <<locked>> | 92% | 49,168 psi | 77% | 3471 fps | 95.7% |
| Somchem S355 | <<locked>> | 98% | 45,687 psi | 72% | 3435 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 47,805 psi | 75% | 3343 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,595 psi | 60% | 3182 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 33,794 psi | 53% | 3064 fps | 98% |
| Vihtavuori N135 | <<locked>> | 80% | 28,761 psi | 45% | 2995 fps | 96.5% |
| Vihtavuori N140 | <<locked>> | 82% | 32,213 psi | 50% | 3058 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 96% | 41,089 psi | 64% | 3294 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 86% | 42,322 psi | 66% | 3320 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 84% | 33,344 psi | 52% | 3097 fps | 95% |
| Winchester 748 | <<locked>> | 84% | 38,145 psi | 60% | 3284 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 92% | 46,180 psi | 72% | 3448 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 84 powders for 8 x 68 S loaded with the .323 | 108gr | Norma FMJ RN. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,730 fps; across all powders the maximum-charge window runs from 2,260 fps to 3,730 fps. Accurate 2495 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, ADI AR 2208 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. Hodgdon CFE223, Alliant Power Pro 1200-R, IMR 3031 rank at the top here: for 8 x 68 S with the .323 | 108gr | 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.