Load Specifications
Load data in caliber 8 x 56 R M30S with .330 | 205gr | Hornady SP bullet and 64 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Hodgdon LEVERevolution.
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: 19"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 44,875 psi | 87% | 2254 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 45,179 psi | 88% | 2303 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 44,034 psi | 86% | 2303 fps | 99.4% |
| Accurate 4064 | <<locked>> | 90% | 45,049 psi | 87% | 2329 fps | 99.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,267 psi | 90% | 2405 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 84% | 43,859 psi | 85% | 2300 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 90% | 44,788 psi | 87% | 2300 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 46,151 psi | 90% | 2316 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 84% | 45,759 psi | 89% | 2320 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 45,585 psi | 89% | 2418 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,092 psi | 86% | 2323 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 88% | 44,730 psi | 87% | 2333 fps | 96.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,195 psi | 90% | 2411 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 94% | 43,787 psi | 85% | 2395 fps | 97.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 45,847 psi | 89% | 2352 fps | 96.3% |
| Bofors RP3 | <<locked>> | 90% | 43,772 psi | 85% | 2326 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 82% | 45,542 psi | 88% | 2270 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 84% | 44,541 psi | 87% | 2333 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 82% | 45,600 psi | 89% | 2398 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 44,237 psi | 86% | 2313 fps | 97.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,424 psi | 82% | 2313 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 45,484 psi | 88% | 2379 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,679 psi | 67% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 45,556 psi | 88% | 2320 fps | 97.9% |
| IMR 3031 | <<locked>> | 86% | 46,166 psi | 90% | 2359 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 44,396 psi | 86% | 2287 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,382 psi | 86% | 2359 fps | 95.8% |
| IMR 4895 | <<locked>> | 88% | 45,818 psi | 89% | 2362 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 84% | 46,151 psi | 90% | 2316 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 86% | 45,382 psi | 88% | 2336 fps | 99.6% |
| Lovex S060 | <<locked>> | 84% | 44,527 psi | 86% | 2254 fps | 97.3% |
| Lovex S062 | <<locked>> | 88% | 43,976 psi | 85% | 2290 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 45,818 psi | 89% | 2310 fps | 98.6% |
| Norma 202 | <<locked>> | 86% | 46,122 psi | 90% | 2323 fps | 99.9% |
| Norma 203B | <<locked>> | 88% | 43,961 psi | 85% | 2323 fps | 97.1% |
| Norma URPᴾ | <<locked>> | 100% | 46,499 psi | 90% | 2405 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 90% | 46,557 psi | 90% | 2385 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 45,295 psi | 88% | 2333 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,143 psi | 68% | 1506 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 43,758 psi | 85% | 2372 fps | 96.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,859 psi | 85% | 2408 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 44,309 psi | 86% | 2264 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 88% | 46,224 psi | 90% | 2310 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 92% | 43,685 psi | 85% | 2320 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 45,382 psi | 88% | 2336 fps | 99.6% |
| Shooters World Precision | <<locked>> | 88% | 43,976 psi | 85% | 2290 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 45,339 psi | 88% | 2372 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 45,136 psi | 88% | 2320 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 44,991 psi | 87% | 2238 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 44,382 psi | 86% | 2238 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 44,092 psi | 86% | 2234 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 43,918 psi | 85% | 2293 fps | 96.9% |
| Somchem S355 | <<locked>> | 92% | 44,759 psi | 87% | 2326 fps | 97.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,481 psi | 81% | 2359 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 84% | 45,049 psi | 87% | 2238 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 45,223 psi | 88% | 2300 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 46,412 psi | 90% | 2310 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 45,716 psi | 89% | 2316 fps | 99% |
| Vihtavuori N160 | <<locked>> | 98% | 45,977 psi | 89% | 2362 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 84% | 46,267 psi | 90% | 2313 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 88% | 44,614 psi | 87% | 2297 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,772 psi | 85% | 2303 fps | 97.4% |
| Winchester 748 | <<locked>> | 84% | 45,237 psi | 88% | 2349 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 44,440 psi | 86% | 2326 fps | 97.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 19"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 42,279 psi | 82% | 2211 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,650 psi | 67% | 2126 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 40,959 psi | 80% | 2251 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 32,808 psi | 64% | 2106 fps | 98.1% |
| Accurate 4350 | <<locked>> | 98% | 43,381 psi | 84% | 2356 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 38,841 psi | 75% | 2208 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 86% | 39,624 psi | 77% | 2208 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,828 psi | 79% | 2224 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 39,987 psi | 78% | 2234 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 42,540 psi | 83% | 2362 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,185 psi | 66% | 2133 fps | 95.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,334 psi | 76% | 2234 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,627 psi | 85% | 2362 fps | 95.5% |
| Alliant Reloder-17 | 50.8 gr | 90% | 38,319 psi | 74% | 2287 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,018 psi | 84% | 2303 fps | 95.6% |
| Bofors RP3 | <<locked>> | 84% | 35,810 psi | 70% | 2178 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,757 psi | 83% | 2221 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,914 psi | 76% | 2234 fps | 97.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,728 psi | 83% | 2346 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 80% | 39,102 psi | 76% | 2218 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 37,463 psi | 73% | 2221 fps | 95.4% |
| Hodgdon LEVERevolution | 45 gr | 80% | 34,925 psi | 68% | 2178 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,817 psi | 50% | 1312 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,507 psi | 73% | 2175 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 37,971 psi | 74% | 2224 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 39,218 psi | 76% | 2195 fps | 95.2% |
| IMR 4831 | <<locked>> | 98% | 41,539 psi | 81% | 2310 fps | 95% |
| IMR 4895 | <<locked>> | 82% | 37,898 psi | 74% | 2218 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 40,828 psi | 79% | 2224 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 37,159 psi | 72% | 2192 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 39,479 psi | 77% | 2162 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 34,360 psi | 67% | 2110 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 37,956 psi | 74% | 2169 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 38,130 psi | 74% | 2188 fps | 99% |
| Norma 203B | <<locked>> | 84% | 38,653 psi | 75% | 2224 fps | 95.6% |
| Norma URP | <<locked>> | 98% | 43,569 psi | 85% | 2356 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 38,247 psi | 74% | 2234 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,668 psi | 77% | 2231 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,092 psi | 51% | 1345 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 40,857 psi | 79% | 2320 fps | 95.5% |
| ReloadSwiss RS 60 | 46.3 gr | 82% | 31,560 psi | 61% | 2136 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,785 psi | 81% | 2221 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 36,129 psi | 70% | 2126 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 35,969 psi | 70% | 2178 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,159 psi | 72% | 2192 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 34,360 psi | 67% | 2110 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 39,697 psi | 77% | 2270 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,318 psi | 72% | 2178 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,595 psi | 77% | 2146 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,547 psi | 63% | 2028 fps | 98.5% |
| Somchem S335 | <<locked>> | 80% | 39,073 psi | 76% | 2149 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 38,377 psi | 75% | 2192 fps | 95.3% |
| Somchem S355 | <<locked>> | 86% | 37,043 psi | 72% | 2185 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 34,142 psi | 66% | 2205 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 39,740 psi | 77% | 2152 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,085 psi | 68% | 2129 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,955 psi | 70% | 2129 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 31,082 psi | 60% | 2044 fps | 95% |
| Vihtavuori N160 | <<locked>> | 96% | 43,076 psi | 84% | 2313 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,538 psi | 79% | 2215 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 34,548 psi | 67% | 2113 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 38,464 psi | 75% | 2205 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 39,668 psi | 77% | 2251 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,390 psi | 71% | 2178 fps | 95.5% |
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 64 powders for 8 x 56 R M30S loaded with the .330 | 205gr | Hornady SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,418 fps; across all powders the maximum-charge window runs from 1,470 fps to 2,418 fps. Accurate 4350 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 205.0 gr projectile in 0.33" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. ReloadSwiss RS 60, Alliant Reloder-17, Hodgdon LEVERevolution rank at the top here: for 8 x 56 R M30S with the .330 | 205gr | Hornady SP 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.