Load Specifications
Load data in caliber 6.8 mm Rem. SPC with .277 | 150gr | Nosler Ballistic Tip Hunting bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Somchem S321 and Hodgdon H335.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 52,663 psi | 90% | 2264 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 50,473 psi | 86% | 2313 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 52,591 psi | 90% | 2382 fps | 96.9% |
| Accurate 2230 | <<locked>> | 88% | 52,649 psi | 90% | 2388 fps | 97.3% |
| Accurate 2460 | <<locked>> | 94% | 52,504 psi | 89% | 2369 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 45,411 psi | 77% | 2313 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 52,649 psi | 90% | 2408 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,163 psi | 72% | 2293 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 88% | 50,560 psi | 86% | 2244 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 51,024 psi | 87% | 2257 fps | 99.5% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 52,837 psi | 90% | 2408 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 86% | 50,546 psi | 86% | 2267 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 51,648 psi | 88% | 2372 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 52,692 psi | 90% | 2379 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 53,156 psi | 90% | 2411 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 50,241 psi | 86% | 2421 fps | 98.1% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 42,264 psi | 72% | 2280 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 51,372 psi | 87% | 2329 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 46,601 psi | 79% | 2343 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,953 psi | 88% | 2280 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 52,025 psi | 89% | 2283 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 52,620 psi | 90% | 2415 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 41,568 psi | 71% | 2283 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 52,620 psi | 90% | 2333 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 50,357 psi | 86% | 2405 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 96% | 52,315 psi | 89% | 2467 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 92% | 49,966 psi | 85% | 2352 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 51,300 psi | 87% | 2379 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 86% | 52,330 psi | 89% | 2280 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 53,127 psi | 90% | 2418 fps | 98.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,979 psi | 82% | 2392 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,851 psi | 56% | 1375 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,779 psi | 88% | 2379 fps | 98% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,546 psi | 86% | 2415 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 46,804 psi | 80% | 2293 fps | 96.1% |
| IMR 4198 | <<locked>> | 92% | 52,446 psi | 89% | 2297 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 52,663 psi | 90% | 2231 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 47,601 psi | 81% | 2372 fps | 97% |
| IMR 8208 XBR | <<locked>> | 98% | 52,692 psi | 90% | 2379 fps | 98.8% |
| Lovex D073.4 | <<locked>> | 88% | 53,098 psi | 90% | 2382 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 94% | 52,446 psi | 89% | 2372 fps | 99.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,386 psi | 86% | 2392 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 51,126 psi | 87% | 2182 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 51,213 psi | 87% | 2310 fps | 97.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,629 psi | 78% | 2300 fps | 97.8% |
| Norma 200 | <<locked>> | 88% | 51,619 psi | 88% | 2313 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 51,677 psi | 88% | 2369 fps | 98.7% |
| Norma 202ᴾ | <<locked>> | 100% | 51,300 psi | 87% | 2379 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 45,600 psi | 78% | 2333 fps | 96.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 46,412 psi | 79% | 2349 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 98% | 51,561 psi | 88% | 2398 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 94% | 51,779 psi | 88% | 2343 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,924 psi | 56% | 1407 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 52,286 psi | 89% | 2260 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 49,821 psi | 85% | 2336 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 48,602 psi | 83% | 2428 fps | 96.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 40,872 psi | 70% | 2313 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 98% | 52,736 psi | 90% | 2362 fps | 99.9% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 48,762 psi | 83% | 2320 fps | 98.3% |
| Shooters World AR Plus | <<locked>> | 88% | 53,098 psi | 90% | 2382 fps | 99.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,386 psi | 86% | 2392 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,629 psi | 78% | 2300 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 50,459 psi | 86% | 2310 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 52,286 psi | 89% | 2060 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 52,504 psi | 89% | 2385 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 52,141 psi | 89% | 2339 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 50,966 psi | 87% | 2379 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 51,924 psi | 88% | 2297 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,208 psi | 75% | 2211 fps | 99.7% |
| Somchem S321 | <<locked>> | 94% | 50,328 psi | 86% | 2372 fps | 98.7% |
| Somchem S335 | <<locked>> | 98% | 50,096 psi | 85% | 2297 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 50,488 psi | 86% | 2359 fps | 97.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 40,480 psi | 69% | 2241 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 86% | 50,618 psi | 86% | 2224 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 51,866 psi | 88% | 2287 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 51,198 psi | 87% | 2293 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,122 psi | 79% | 2306 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,791 psi | 83% | 2323 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 39,001 psi | 66% | 2192 fps | 96.8% |
| Vihtavuori N530 | <<locked>> | 96% | 49,922 psi | 85% | 2336 fps | 98.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,818 psi | 80% | 2316 fps | 99.5% |
| Winchester 748 | <<locked>> | 98% | 51,082 psi | 87% | 2415 fps | 99.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 50,531 psi | 86% | 2392 fps | 97.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 46,282 psi | 79% | 2185 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,922 psi | 53% | 2005 fps | 98.9% |
| Accurate 2200 | <<locked>> | 84% | 46,079 psi | 78% | 2287 fps | 95.5% |
| Accurate 2230 | <<locked>> | 82% | 42,467 psi | 72% | 2241 fps | 95.1% |
| Accurate 2460 | <<locked>> | 80% | 33,069 psi | 56% | 2070 fps | 96.9% |
| Accurate 2495 | <<locked>> | 80% | 23,438 psi | 40% | 1903 fps | 96.9% |
| Accurate 2520 | <<locked>> | 82% | 30,690 psi | 52% | 2060 fps | 95.7% |
| Accurate 4064 | <<locked>> | 86% | 26,977 psi | 46% | 2001 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 39,871 psi | 68% | 2090 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 80% | 40,248 psi | 69% | 2100 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 92% | 41,336 psi | 70% | 2238 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 42,221 psi | 72% | 2159 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 37,391 psi | 64% | 2162 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 36,289 psi | 62% | 2123 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 28,471 psi | 48% | 2024 fps | 99.8% |
| Alliant Power Pro 1200-R | 24.3 gr | 84% | 38,783 psi | 66% | 2238 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 37,550 psi | 64% | 2198 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,592 psi | 61% | 2100 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 43,627 psi | 74% | 2297 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,656 psi | 74% | 2172 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,985 psi | 65% | 2087 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 45,934 psi | 78% | 2320 fps | 95% |
| Bofors RP3 | <<locked>> | 96% | 36,245 psi | 62% | 2195 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 34,650 psi | 59% | 2047 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 86% | 33,634 psi | 57% | 2133 fps | 95.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 46,064 psi | 78% | 2375 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 34,200 psi | 58% | 2103 fps | 98.4% |
| Hodgdon H335 | 24.7 gr | 80% | 34,389 psi | 59% | 2113 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 80% | 43,961 psi | 75% | 2165 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 90% | 38,928 psi | 66% | 2205 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 37,304 psi | 64% | 2211 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,439 psi | 42% | 1230 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 40,524 psi | 69% | 2211 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 27,021 psi | 46% | 1995 fps | 96.9% |
| IMR 4064 | <<locked>> | 98% | 44,309 psi | 75% | 2257 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 37,072 psi | 63% | 2083 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 49,226 psi | 84% | 2192 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 39,566 psi | 67% | 2244 fps | 95% |
| IMR 8208 XBR | <<locked>> | 86% | 36,289 psi | 62% | 2123 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 40,553 psi | 69% | 2201 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 32,706 psi | 56% | 2064 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 84% | 29,283 psi | 50% | 2041 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 48,414 psi | 82% | 2149 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 40,640 psi | 69% | 2152 fps | 95% |
| Lovex S062 | <<locked>> | 92% | 35,984 psi | 61% | 2139 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 40,190 psi | 68% | 2159 fps | 100% |
| Norma 201 | <<locked>> | 88% | 35,795 psi | 61% | 2116 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 27,412 psi | 47% | 1962 fps | 95% |
| Norma 203B | <<locked>> | 96% | 39,987 psi | 68% | 2241 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 98% | 43,584 psi | 74% | 2303 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 92% | 42,627 psi | 73% | 2267 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 42,496 psi | 72% | 2208 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,221 psi | 41% | 1257 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 49,530 psi | 84% | 2228 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,084 psi | 58% | 2080 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 45,498 psi | 77% | 2382 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 36,071 psi | 61% | 2215 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 31,285 psi | 53% | 2011 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 90% | 36,042 psi | 61% | 2116 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 40,553 psi | 69% | 2201 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 29,283 psi | 50% | 2041 fps | 95.1% |
| Shooters World Precision | <<locked>> | 92% | 35,984 psi | 61% | 2139 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 38,334 psi | 65% | 2126 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,846 psi | 76% | 1975 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,710 psi | 64% | 2165 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,361 psi | 62% | 2106 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 42,105 psi | 72% | 2247 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,052 psi | 51% | 1946 fps | 95.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 25,730 psi | 44% | 1867 fps | 95.3% |
| Somchem S321 | 26.1 gr | 84% | 36,114 psi | 61% | 2146 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 29,153 psi | 50% | 1946 fps | 96.6% |
| Somchem S341 | <<locked>> | 94% | 43,903 psi | 75% | 2264 fps | 95.7% |
| Somchem S355 | <<locked>> | 98% | 37,898 psi | 65% | 2195 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 42,337 psi | 72% | 2123 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,258 psi | 58% | 2031 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 29,791 psi | 51% | 1959 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 24,918 psi | 42% | 1916 fps | 97.2% |
| Vihtavuori N140 | <<locked>> | 82% | 27,731 psi | 47% | 1952 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 96% | 34,156 psi | 58% | 2103 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 86% | 36,172 psi | 62% | 2119 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 84% | 28,369 psi | 48% | 1985 fps | 95.1% |
| Winchester 748 | <<locked>> | 84% | 32,590 psi | 55% | 2103 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 92% | 38,667 psi | 66% | 2208 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 95 powders for 6.8 mm Rem. SPC loaded with the .277 | 150gr | Nosler Ballistic Tip Hunting. Hodgdon CFE223 delivers the highest muzzle velocity at 2,467 fps; across all powders the maximum-charge window runs from 1,375 fps to 2,467 fps. Accurate 2495 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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 1200-R, Somchem S321, Hodgdon H335 rank at the top here: for 6.8 mm Rem. SPC with the .277 | 150gr | Nosler Ballistic Tip Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-17, Hodgdon H380, IMR 4166 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.