Load Specifications
Load data in caliber 6.8 mm Rem. SPC with .277 | 150gr | Geco PLUS bullet and 85 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 Winchester 748.
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>> | 82% | 52,141 psi | 89% | 2287 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 50,676 psi | 86% | 2343 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,228 psi | 89% | 2411 fps | 97.4% |
| Accurate 2230 | <<locked>> | 86% | 52,533 psi | 89% | 2421 fps | 97.8% |
| Accurate 2460 | <<locked>> | 92% | 52,736 psi | 90% | 2405 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,356 psi | 84% | 2385 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 50,024 psi | 85% | 2405 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,788 psi | 78% | 2372 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 86% | 50,285 psi | 86% | 2274 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 50,734 psi | 86% | 2287 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 98% | 52,837 psi | 90% | 2441 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 84% | 50,517 psi | 86% | 2290 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,037 psi | 82% | 2352 fps | 96.6% |
| ADI AR 2219 | <<locked>> | 88% | 51,750 psi | 88% | 2405 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 52,808 psi | 90% | 2411 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 96% | 50,937 psi | 87% | 2411 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 50,589 psi | 86% | 2457 fps | 98.6% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,895 psi | 90% | 2526 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,890 psi | 78% | 2369 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,488 psi | 88% | 2359 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,227 psi | 86% | 2428 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 84% | 52,025 psi | 89% | 2310 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 51,547 psi | 88% | 2310 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 52,446 psi | 89% | 2451 fps | 97.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,252 psi | 77% | 2372 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,808 psi | 90% | 2369 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 96% | 50,792 psi | 86% | 2441 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 94% | 52,547 psi | 89% | 2510 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 90% | 50,198 psi | 85% | 2385 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,532 psi | 88% | 2411 fps | 100% |
| Hodgdon H4198 | <<locked>> | 84% | 52,199 psi | 89% | 2313 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 50,082 psi | 85% | 2411 fps | 98.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,155 psi | 87% | 2474 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,417 psi | 57% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 51,735 psi | 88% | 2415 fps | 98.5% |
| IMR 3031 | <<locked>> | 98% | 51,227 psi | 87% | 2451 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,502 psi | 86% | 2382 fps | 97.4% |
| IMR 4198 | <<locked>> | 90% | 52,576 psi | 90% | 2326 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,372 psi | 87% | 2457 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 96% | 52,808 psi | 90% | 2411 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 86% | 53,113 psi | 90% | 2411 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 92% | 53,055 psi | 90% | 2411 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 98% | 51,111 psi | 87% | 2431 fps | 99.8% |
| Lovex S060 | <<locked>> | 96% | 51,271 psi | 87% | 2349 fps | 97.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,907 psi | 83% | 2379 fps | 98.8% |
| Norma 200 | <<locked>> | 86% | 51,793 psi | 88% | 2339 fps | 100% |
| Norma 201 | <<locked>> | 98% | 51,866 psi | 88% | 2402 fps | 99.1% |
| Norma 202 | <<locked>> | 98% | 51,517 psi | 88% | 2411 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,226 psi | 84% | 2418 fps | 97.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,748 psi | 85% | 2434 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,359 psi | 89% | 2444 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 92% | 51,590 psi | 88% | 2375 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,504 psi | 57% | 1444 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 52,866 psi | 90% | 2408 fps | 99.8% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,765 psi | 90% | 2523 fps | 97.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,859 psi | 75% | 2405 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 96% | 52,808 psi | 90% | 2395 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,170 psi | 89% | 2398 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,887 psi | 71% | 2310 fps | 97% |
| Shooters World AR Plus | <<locked>> | 86% | 53,113 psi | 90% | 2411 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,111 psi | 87% | 2431 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,907 psi | 83% | 2379 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 50,067 psi | 85% | 2339 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 51,953 psi | 88% | 2080 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,330 psi | 89% | 2415 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 44,875 psi | 76% | 2369 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 52,649 psi | 90% | 2372 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 51,300 psi | 87% | 2395 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,271 psi | 87% | 2418 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 51,735 psi | 88% | 2326 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,427 psi | 81% | 2283 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 50,879 psi | 87% | 2411 fps | 99.1% |
| Somchem S335 | <<locked>> | 96% | 50,386 psi | 86% | 2329 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 50,575 psi | 86% | 2395 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,569 psi | 74% | 2320 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 84% | 50,546 psi | 86% | 2247 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 51,576 psi | 88% | 2310 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,184 psi | 87% | 2323 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,995 psi | 85% | 2379 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,112 psi | 89% | 2395 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,756 psi | 71% | 2267 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 94% | 50,096 psi | 85% | 2369 fps | 98.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,212 psi | 85% | 2388 fps | 99.9% |
| Winchester 748 | <<locked>> | 96% | 51,532 psi | 88% | 2454 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 98% | 50,662 psi | 86% | 2428 fps | 98.4% |
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% | 49,124 psi | 84% | 2251 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,054 psi | 56% | 2070 fps | 99.5% |
| Accurate 2200 | <<locked>> | 80% | 43,337 psi | 74% | 2277 fps | 95.4% |
| Accurate 2230 | <<locked>> | 80% | 42,569 psi | 72% | 2274 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 35,346 psi | 60% | 2139 fps | 98% |
| Accurate 2495 | <<locked>> | 80% | 25,701 psi | 44% | 1978 fps | 98.2% |
| Accurate 2520 | <<locked>> | 80% | 30,864 psi | 53% | 2087 fps | 96.3% |
| Accurate 4064 | <<locked>> | 82% | 25,991 psi | 44% | 1995 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 41,901 psi | 71% | 2152 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 42,279 psi | 72% | 2162 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 39,160 psi | 67% | 2228 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 44,991 psi | 77% | 2221 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 42,554 psi | 72% | 2267 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 39,769 psi | 68% | 2231 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,316 psi | 58% | 2113 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 30,385 psi | 52% | 2090 fps | 100% |
| Alliant Power Pro 1200-R | 24.7 gr | 80% | 36,477 psi | 62% | 2221 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 46,398 psi | 79% | 2425 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 35,534 psi | 60% | 2188 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,029 psi | 65% | 2165 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 41,437 psi | 71% | 2290 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,079 psi | 78% | 2231 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,263 psi | 69% | 2149 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 43,584 psi | 74% | 2316 fps | 95.1% |
| Bofors RP3 | <<locked>> | 92% | 34,679 psi | 59% | 2192 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,606 psi | 59% | 2077 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 82% | 31,720 psi | 54% | 2119 fps | 95.1% |
| Hodgdon CFE223 | 29.6 gr | 88% | 43,033 psi | 73% | 2362 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 36,579 psi | 62% | 2175 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 36,811 psi | 63% | 2185 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 80% | 46,180 psi | 79% | 2231 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 36,651 psi | 62% | 2188 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 35,128 psi | 60% | 2198 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,656 psi | 42% | 1253 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 38,247 psi | 65% | 2201 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 29,153 psi | 50% | 2073 fps | 98.2% |
| IMR 4064 | <<locked>> | 94% | 42,047 psi | 72% | 2254 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 39,175 psi | 67% | 2142 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 37,420 psi | 64% | 2234 fps | 95% |
| IMR 8208 XBR | <<locked>> | 82% | 34,316 psi | 58% | 2113 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 43,540 psi | 74% | 2280 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 35,215 psi | 60% | 2139 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 82% | 29,776 psi | 51% | 2073 fps | 95.8% |
| Lovex S060 | <<locked>> | 88% | 40,538 psi | 69% | 2182 fps | 95.7% |
| Lovex S062 | <<locked>> | 88% | 33,924 psi | 58% | 2126 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 43,105 psi | 73% | 2224 fps | 100% |
| Norma 201 | <<locked>> | 84% | 33,910 psi | 58% | 2106 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 29,544 psi | 50% | 2037 fps | 96.5% |
| Norma 203B | <<locked>> | 92% | 38,145 psi | 65% | 2238 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 94% | 40,843 psi | 70% | 2293 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 40,001 psi | 68% | 2254 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 40,074 psi | 68% | 2198 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,845 psi | 42% | 1289 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,347 psi | 62% | 2152 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 43,323 psi | 74% | 2379 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 33,982 psi | 58% | 2205 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 33,373 psi | 57% | 2080 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 86% | 34,127 psi | 58% | 2106 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 96% | 36,840 psi | 63% | 2224 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 43,540 psi | 74% | 2280 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 29,776 psi | 51% | 2073 fps | 95.8% |
| Shooters World Precision | <<locked>> | 88% | 33,924 psi | 58% | 2126 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,377 psi | 65% | 2156 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,891 psi | 80% | 2024 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,350 psi | 69% | 2238 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 39,523 psi | 67% | 2274 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,348 psi | 65% | 2169 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 47,688 psi | 81% | 2346 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 39,972 psi | 68% | 2244 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,647 psi | 54% | 2005 fps | 97% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,628 psi | 44% | 1890 fps | 95.9% |
| Somchem S321 | <<locked>> | 80% | 34,026 psi | 58% | 2133 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 31,256 psi | 53% | 2018 fps | 97.8% |
| Somchem S341 | <<locked>> | 90% | 41,336 psi | 70% | 2257 fps | 95.7% |
| Somchem S355 | <<locked>> | 94% | 36,230 psi | 62% | 2192 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 45,063 psi | 77% | 2182 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,056 psi | 61% | 2087 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 31,459 psi | 54% | 2014 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 26,527 psi | 45% | 1982 fps | 98.2% |
| Vihtavuori N140 | <<locked>> | 80% | 27,876 psi | 47% | 1982 fps | 96.1% |
| Vihtavuori N150 | <<locked>> | 92% | 32,561 psi | 55% | 2100 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 82% | 34,127 psi | 58% | 2106 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 82% | 28,616 psi | 49% | 2014 fps | 95.8% |
| Winchester 748 | 26.5 gr | 82% | 32,692 psi | 56% | 2133 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 36,361 psi | 62% | 2195 fps | 95.1% |
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 101 powders for 6.8 mm Rem. SPC loaded with the .277 | 150gr | Geco PLUS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,526 fps; across all powders the maximum-charge window runs from 1,407 fps to 2,526 fps. Accurate 2495 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2700, Accurate 4064 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, Winchester 748 rank at the top here: for 6.8 mm Rem. SPC with the .277 | 150gr | Geco PLUS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-16, Hodgdon Hybrid 100V 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.