Load Specifications
Load data in caliber 8 x 75 RS with .323 | 100gr | Impala LWHV KS bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Vihtavuori N135 and Hodgdon H322.
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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 49,821 psi | 90% | 3510 fps | 99.7% |
| Accurate 2460 | <<locked>> | 88% | 48,602 psi | 88% | 3497 fps | 97.7% |
| Accurate 2495 | <<locked>> | 98% | 49,676 psi | 90% | 3560 fps | 99.8% |
| Accurate 2520 | <<locked>> | 92% | 49,095 psi | 89% | 3550 fps | 97.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,950 psi | 89% | 3570 fps | 98.5% |
| Accurate LT-30 | <<locked>> | 84% | 47,848 psi | 87% | 3399 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 84% | 48,196 psi | 87% | 3406 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 82% | 48,501 psi | 88% | 3478 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 49,734 psi | 90% | 3570 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 94% | 48,921 psi | 89% | 3596 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 49,835 psi | 90% | 3543 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 49,821 psi | 90% | 3432 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 48,066 psi | 87% | 3448 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 94% | 49,530 psi | 90% | 3579 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 88% | 48,269 psi | 88% | 3543 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 88% | 49,676 psi | 90% | 3560 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 82% | 49,429 psi | 90% | 3458 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,562 psi | 61% | 2297 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 49,777 psi | 90% | 3642 fps | 99.5% |
| IMR 4198 | <<locked>> | 86% | 47,152 psi | 86% | 3458 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 48,167 psi | 87% | 3510 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 88% | 48,617 psi | 88% | 3494 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 94% | 46,920 psi | 85% | 3517 fps | 97% |
| Norma 200 | <<locked>> | 82% | 47,645 psi | 86% | 3471 fps | 100% |
| Norma 202 | <<locked>> | 94% | 47,659 psi | 86% | 3514 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,605 psi | 61% | 2349 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 48,269 psi | 88% | 3507 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 92% | 49,676 psi | 90% | 3520 fps | 97.9% |
| Shooters World AR Plus | <<locked>> | 82% | 48,167 psi | 87% | 3510 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 46,920 psi | 85% | 3517 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 49,458 psi | 90% | 3212 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 47,442 psi | 86% | 3507 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 47,065 psi | 85% | 3484 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 47,340 psi | 86% | 3409 fps | 97.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,994 psi | 89% | 3445 fps | 98.8% |
| Somchem S321 | <<locked>> | 90% | 49,574 psi | 90% | 3543 fps | 96% |
| Somchem S335 | <<locked>> | 94% | 49,298 psi | 89% | 3465 fps | 98.7% |
| Vihtavuori N120 | <<locked>> | 82% | 48,399 psi | 88% | 3419 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 47,239 psi | 86% | 3419 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 94% | 49,545 psi | 90% | 3468 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 98% | 48,646 psi | 88% | 3540 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 96% | 47,921 psi | 87% | 3484 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 98% | 49,487 psi | 90% | 3527 fps | 98% |
| Winchester 748 | <<locked>> | 92% | 46,963 psi | 85% | 3537 fps | 96.1% |
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 2015 | <<locked>> | 80% | 34,708 psi | 63% | 3156 fps | 97% |
| Accurate 2460 | <<locked>> | 82% | 40,030 psi | 73% | 3304 fps | 95.5% |
| Accurate 2495 | <<locked>> | 82% | 30,168 psi | 55% | 3074 fps | 95.7% |
| Accurate 2520 | <<locked>> | 86% | 40,074 psi | 73% | 3343 fps | 95% |
| Accurate 4064 | <<locked>> | 90% | 36,071 psi | 65% | 3261 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 42,554 psi | 77% | 3281 fps | 97.8% |
| Accurate LT-32 | <<locked>> | 80% | 42,888 psi | 78% | 3287 fps | 95.8% |
| ADI AR 2207 | <<locked>> | 80% | 45,614 psi | 83% | 3422 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 40,857 psi | 74% | 3373 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 31,618 psi | 57% | 3166 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,218 psi | 71% | 3307 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,278 psi | 75% | 3251 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 45,411 psi | 82% | 3389 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 46,340 psi | 84% | 3510 fps | 95.6% |
| Hodgdon H322 | 54.8 gr | 80% | 37,565 psi | 68% | 3284 fps | 96.1% |
| Hodgdon H335 | <<locked>> | 80% | 38,203 psi | 69% | 3291 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 46,572 psi | 85% | 3396 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,005 psi | 45% | 2064 fps | 100% |
| IMR 3031 | 54.3 gr | 82% | 32,300 psi | 59% | 3186 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 39,871 psi | 72% | 3291 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 80% | 44,933 psi | 82% | 3438 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 86% | 45,411 psi | 82% | 3425 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 90% | 40,988 psi | 74% | 3379 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 44,773 psi | 81% | 3412 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 39,552 psi | 72% | 3327 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,990 psi | 45% | 2110 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 42,540 psi | 77% | 3376 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 84% | 39,639 psi | 72% | 3284 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 44,933 psi | 82% | 3438 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 40,988 psi | 74% | 3379 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,992 psi | 85% | 3169 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,713 psi | 76% | 3376 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,131 psi | 71% | 3297 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 39,523 psi | 72% | 3228 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 34,171 psi | 62% | 3097 fps | 95% |
| Somchem S321 | <<locked>> | 88% | 46,325 psi | 84% | 3474 fps | 95.2% |
| Somchem S335 | <<locked>> | 82% | 34,795 psi | 63% | 3117 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 45,585 psi | 83% | 3366 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,333 psi | 68% | 3189 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 32,677 psi | 59% | 3068 fps | 96.2% |
| Vihtavuori N135 | 53.1 gr | 82% | 29,863 psi | 54% | 3064 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 88% | 37,304 psi | 68% | 3235 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 90% | 38,566 psi | 70% | 3278 fps | 95.2% |
| Winchester 748 | <<locked>> | 90% | 43,947 psi | 80% | 3465 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 44 powders for 8 x 75 RS loaded with the .323 | 100gr | Impala LWHV KS. IMR 3031 delivers the highest muzzle velocity at 3,642 fps; across all powders the maximum-charge window runs from 2,297 fps to 3,642 fps. Accurate 4064 gives the best case fill at 100 %, and 44 of the 44 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. Accurate 4064, Hodgdon TrailBoss, ReloadSwiss RS 14 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. IMR 3031, Vihtavuori N135, Hodgdon H322 rank at the top here: for 8 x 75 RS with the .323 | 100gr | Impala LWHV KS 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.