Load Specifications
Load data in caliber 6.8 mm Rem. SPC with .277 | 115gr | Nosler Custom Competition bullet and 34 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-7, ADI AR 2207 and Norma 200.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 92% | 50,995 psi | 87% | 2503 fps | 99.7% |
| Accurate 2015ᴾ | <<locked>> | 100% | 39,233 psi | 67% | 2408 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 98% | 50,705 psi | 86% | 2487 fps | 98% |
| Accurate LT-32 | <<locked>> | 98% | 51,271 psi | 87% | 2487 fps | 96.1% |
| Accurate No. 11 FS | <<locked>> | 82% | 52,939 psi | 90% | 2493 fps | 100% |
| ADI AR 2205 | <<locked>> | 84% | 50,778 psi | 86% | 2388 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 51,706 psi | 88% | 2582 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 50,546 psi | 86% | 2612 fps | 97.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 36,724 psi | 63% | 2431 fps | 98.9% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 45,339 psi | 77% | 2530 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 96% | 51,590 psi | 88% | 2552 fps | 99.9% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 52,185 psi | 89% | 2530 fps | 98.4% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 45,788 psi | 78% | 2539 fps | 96.9% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 46,731 psi | 80% | 2556 fps | 96% |
| Hodgdon H4198 | <<locked>> | 94% | 50,357 psi | 86% | 2497 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,501 psi | 52% | 1499 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 48,327 psi | 82% | 2516 fps | 99.9% |
| IMR 4227 | <<locked>> | 90% | 50,792 psi | 86% | 2484 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 51,256 psi | 87% | 2520 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 98% | 51,735 psi | 88% | 2612 fps | 96.1% |
| Lovex S053 | <<locked>> | 92% | 51,576 psi | 88% | 2477 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 51,634 psi | 88% | 2605 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,284 psi | 52% | 1539 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 52,736 psi | 90% | 2552 fps | 100% |
| Shooters World AR Plus | <<locked>> | 98% | 51,735 psi | 88% | 2612 fps | 96.1% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 51,256 psi | 87% | 2520 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 84% | 51,663 psi | 88% | 2493 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 52,156 psi | 89% | 2339 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 50,981 psi | 87% | 2621 fps | 96.9% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 47,137 psi | 80% | 2533 fps | 98.2% |
| Vihtavuori N110 | <<locked>> | 86% | 51,140 psi | 87% | 2392 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 51,866 psi | 88% | 2536 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 44,266 psi | 75% | 2448 fps | 98.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 38,377 psi | 65% | 2352 fps | 96.8% |
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% | 34,214 psi | 58% | 2224 fps | 97% |
| Accurate 2015 | <<locked>> | 94% | 32,445 psi | 55% | 2277 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 88% | 38,000 psi | 65% | 2280 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 94% | 46,064 psi | 78% | 2411 fps | 95% |
| Accurate No. 11 FS | <<locked>> | 80% | 49,763 psi | 85% | 2454 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 44,962 psi | 77% | 2310 fps | 100% |
| ADI AR 2207 | 19.3 gr | 80% | 29,907 psi | 51% | 2211 fps | 99.2% |
| ADI AR 2219 | <<locked>> | 92% | 39,131 psi | 67% | 2421 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 90% | 27,195 psi | 46% | 2198 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 86% | 29,617 psi | 50% | 2224 fps | 95.7% |
| Alliant Reloder-7 | 20 gr | 80% | 31,720 psi | 54% | 2208 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 37,855 psi | 64% | 2306 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 96% | 40,103 psi | 68% | 2438 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 98% | 43,497 psi | 74% | 2503 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 88% | 42,076 psi | 72% | 2362 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,524 psi | 38% | 1342 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 27,644 psi | 47% | 2110 fps | 95.6% |
| IMR 4227 | <<locked>> | 80% | 37,463 psi | 64% | 2277 fps | 99.5% |
| Lovex D060 | <<locked>> | 80% | 45,411 psi | 77% | 2431 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 96% | 47,761 psi | 81% | 2556 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 36,550 psi | 62% | 2251 fps | 100% |
| Norma 200 | 20.2 gr | 80% | 27,876 psi | 47% | 2169 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,104 psi | 38% | 1371 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 36,535 psi | 62% | 2300 fps | 99.3% |
| Shooters World AR Plus | <<locked>> | 96% | 47,761 psi | 81% | 2556 fps | 95.3% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 45,411 psi | 77% | 2431 fps | 99.6% |
| Shooters World SOCOM | <<locked>> | 80% | 45,136 psi | 77% | 2402 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,287 psi | 58% | 2090 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 44,672 psi | 76% | 2523 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 35,114 psi | 60% | 2316 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 80% | 43,192 psi | 74% | 2287 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 30,182 psi | 51% | 2188 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 29,167 psi | 50% | 2156 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 96% | 34,055 psi | 58% | 2264 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 53 powders for 6.8 mm Rem. SPC loaded with the .277 | 115gr | Nosler Custom Competition. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,499 fps to 2,621 fps. Accurate 2015 gives the best case fill at 100 %, and 53 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.277" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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 Reloder-7, ADI AR 2207, Norma 200 rank at the top here: for 6.8 mm Rem. SPC with the .277 | 115gr | Nosler Custom Competition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2230, Accurate 2495, Accurate 2520 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.