Load Specifications
Load data in caliber 6.8 mm Rem. SPC with .277 | 129gr | Reichenberg Spezial Jagd bullet and 70 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, SNPE Vectan SP 10 and ADI AR 2219.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 51,343 psi | 87% | 2480 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 52,417 psi | 89% | 2572 fps | 100% |
| Accurate 2230 | <<locked>> | 88% | 51,358 psi | 87% | 2605 fps | 96% |
| Accurate 2460 | <<locked>> | 94% | 51,169 psi | 87% | 2585 fps | 99.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 43,671 psi | 74% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 51,619 psi | 88% | 2631 fps | 99.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,582 psi | 69% | 2490 fps | 98.6% |
| Accurate LT-30 | <<locked>> | 90% | 52,214 psi | 89% | 2497 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 90% | 52,678 psi | 90% | 2510 fps | 99.2% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 51,430 psi | 88% | 2621 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 88% | 52,359 psi | 89% | 2530 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 50,343 psi | 86% | 2595 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 98% | 51,663 psi | 88% | 2595 fps | 97.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,054 psi | 89% | 2644 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 51,996 psi | 89% | 2687 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 94% | 53,113 psi | 90% | 2595 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 50,720 psi | 86% | 2500 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 50,763 psi | 86% | 2497 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 96% | 51,256 psi | 87% | 2546 fps | 98.3% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,214 psi | 89% | 2664 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 96% | 51,227 psi | 87% | 2684 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 94% | 51,924 psi | 88% | 2615 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 92% | 50,111 psi | 85% | 2598 fps | 99.4% |
| Hodgdon H4198 | <<locked>> | 86% | 51,256 psi | 87% | 2500 fps | 99.7% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 51,663 psi | 88% | 2631 fps | 97.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 46,543 psi | 79% | 2595 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,822 psi | 56% | 1532 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 50,502 psi | 86% | 2592 fps | 96.9% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,066 psi | 84% | 2635 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 51,358 psi | 87% | 2523 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 51,242 psi | 87% | 2451 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 51,663 psi | 88% | 2595 fps | 97.9% |
| Lovex D073.4 | <<locked>> | 88% | 51,967 psi | 88% | 2602 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 94% | 51,343 psi | 87% | 2592 fps | 98.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 48,791 psi | 83% | 2605 fps | 98.9% |
| Lovex S053 | <<locked>> | 84% | 53,113 psi | 90% | 2441 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 50,183 psi | 85% | 2523 fps | 96.3% |
| Lovex S062ᴾ | <<locked>> | 100% | 44,309 psi | 75% | 2500 fps | 96.6% |
| Norma 200 | <<locked>> | 88% | 49,850 psi | 85% | 2530 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,096 psi | 85% | 2575 fps | 97.7% |
| Norma 202ᴾ | <<locked>> | 100% | 50,082 psi | 85% | 2595 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 98% | 50,502 psi | 86% | 2612 fps | 96.3% |
| Ramshot X-Terminator | <<locked>> | 94% | 50,401 psi | 86% | 2549 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,764 psi | 56% | 1568 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 51,140 psi | 87% | 2487 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 51,880 psi | 88% | 2598 fps | 99% |
| Rottweil R 901 | <<locked>> | 98% | 51,387 psi | 87% | 2579 fps | 99.4% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,050 psi | 80% | 2520 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 88% | 51,967 psi | 88% | 2602 fps | 99.1% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 48,791 psi | 83% | 2605 fps | 98.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 44,309 psi | 75% | 2500 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 52,837 psi | 90% | 2569 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 51,227 psi | 87% | 2274 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 51,155 psi | 87% | 2605 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 50,705 psi | 86% | 2559 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 49,647 psi | 85% | 2589 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 50,763 psi | 86% | 2510 fps | 99.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,221 psi | 74% | 2415 fps | 99.2% |
| Somchem S321 | <<locked>> | 96% | 52,779 psi | 90% | 2638 fps | 98.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 51,837 psi | 88% | 2549 fps | 99.8% |
| Somchem S341ᴾ | <<locked>> | 100% | 52,185 psi | 89% | 2608 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 88% | 52,315 psi | 89% | 2480 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 50,256 psi | 86% | 2500 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,026 psi | 90% | 2549 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 44,962 psi | 77% | 2520 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 47,065 psi | 80% | 2526 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 98% | 52,156 psi | 89% | 2595 fps | 98% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,687 psi | 78% | 2523 fps | 98.8% |
| Winchester 748 | <<locked>> | 98% | 49,734 psi | 85% | 2628 fps | 98.4% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 48,820 psi | 83% | 2595 fps | 96.6% |
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% | 45,237 psi | 77% | 2395 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,023 psi | 51% | 2185 fps | 97.8% |
| Accurate 2230 | <<locked>> | 86% | 47,834 psi | 81% | 2549 fps | 95.2% |
| Accurate 2460 | <<locked>> | 80% | 32,010 psi | 54% | 2247 fps | 95.3% |
| Accurate 2495 | <<locked>> | 80% | 22,408 psi | 38% | 2057 fps | 95% |
| Accurate 2520 | <<locked>> | 86% | 33,924 psi | 58% | 2329 fps | 95.6% |
| Accurate 4064 | <<locked>> | 90% | 29,573 psi | 50% | 2260 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 38,914 psi | 66% | 2287 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 80% | 39,291 psi | 67% | 2293 fps | 97% |
| ADI AR 2206H | <<locked>> | 96% | 45,353 psi | 77% | 2523 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 40,973 psi | 70% | 2365 fps | 100% |
| ADI AR 2219 | 26.4 gr | 80% | 36,056 psi | 61% | 2349 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 90% | 40,176 psi | 68% | 2405 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,557 psi | 47% | 2201 fps | 99.2% |
| Alliant Power Pro 1200-R | 28.2 gr | 88% | 42,859 psi | 73% | 2536 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,722 psi | 59% | 2297 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,496 psi | 72% | 2379 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,767 psi | 63% | 2270 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 38,218 psi | 65% | 2323 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 90% | 37,246 psi | 63% | 2411 fps | 95.2% |
| Hodgdon CFE223 | <<locked>> | 94% | 47,863 psi | 81% | 2631 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 33,257 psi | 57% | 2290 fps | 97.1% |
| Hodgdon H335 | <<locked>> | 80% | 33,547 psi | 57% | 2300 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 80% | 42,917 psi | 73% | 2369 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 94% | 42,902 psi | 73% | 2490 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 41,118 psi | 70% | 2497 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,076 psi | 41% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 44,527 psi | 76% | 2497 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 26,208 psi | 45% | 2162 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 36,361 psi | 62% | 2283 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 48,211 psi | 82% | 2411 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 40,176 psi | 68% | 2405 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 39,015 psi | 66% | 2392 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 84% | 36,172 psi | 62% | 2336 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 88% | 32,358 psi | 55% | 2310 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 47,645 psi | 81% | 2372 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 44,788 psi | 76% | 2434 fps | 95% |
| Lovex S062 | <<locked>> | 96% | 39,320 psi | 67% | 2411 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 38,899 psi | 66% | 2359 fps | 100% |
| Norma 201 | <<locked>> | 92% | 39,160 psi | 67% | 2392 fps | 95.2% |
| Norma 202 | <<locked>> | 86% | 32,314 psi | 55% | 2277 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 96% | 47,181 psi | 80% | 2559 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 92% | 47,181 psi | 80% | 2500 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,163 psi | 41% | 1401 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,211 psi | 82% | 2448 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 35,375 psi | 60% | 2313 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 82% | 32,010 psi | 54% | 2224 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 94% | 39,378 psi | 67% | 2385 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 39,015 psi | 66% | 2392 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 32,358 psi | 55% | 2310 fps | 95% |
| Shooters World Precision | <<locked>> | 96% | 39,320 psi | 67% | 2411 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 42,859 psi | 73% | 2415 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,671 psi | 74% | 2175 fps | 100% |
| SNPE Vectan SP 10 | 27.4 gr | 80% | 36,782 psi | 63% | 2359 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,041 psi | 60% | 2293 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 46,847 psi | 80% | 2546 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 30,922 psi | 53% | 2156 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 28,181 psi | 48% | 2113 fps | 95.1% |
| Somchem S321 | <<locked>> | 88% | 40,161 psi | 68% | 2431 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 28,239 psi | 48% | 2116 fps | 95% |
| Somchem S341 | <<locked>> | 96% | 45,977 psi | 78% | 2513 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 41,089 psi | 70% | 2329 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,141 psi | 56% | 2215 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 28,819 psi | 49% | 2129 fps | 97.2% |
| Vihtavuori N135 | <<locked>> | 80% | 24,004 psi | 41% | 2077 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 86% | 30,516 psi | 52% | 2215 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 90% | 40,074 psi | 68% | 2402 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 88% | 31,299 psi | 53% | 2247 fps | 95% |
| Winchester 748 | <<locked>> | 88% | 36,129 psi | 62% | 2382 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 96% | 43,004 psi | 73% | 2500 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 91 powders for 6.8 mm Rem. SPC loaded with the .277 | 129gr | Reichenberg Spezial Jagd. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,687 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,687 fps. Accurate 2495 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 129.0 gr projectile in 0.277" calls for a 1:12.0 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, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for 6.8 mm Rem. SPC with the .277 | 129gr | Reichenberg Spezial Jagd they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2208, Alliant Power Pro 2000-MR, Alliant Reloder-15 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.