Load Specifications
Load data in caliber .277 Fury Commercial with .277 | 150gr | Norma Semi Soft Point bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 56,884 psi | 90% | 2474 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,376 psi | 88% | 2497 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,984 psi | 87% | 2493 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,722 psi | 85% | 2510 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 54,636 psi | 87% | 2530 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,285 psi | 80% | 2536 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 82% | 56,347 psi | 89% | 2425 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,768 psi | 90% | 2448 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,072 psi | 89% | 2559 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 96% | 56,782 psi | 90% | 2552 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,419 psi | 88% | 2520 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 55,317 psi | 88% | 2500 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,388 psi | 85% | 2559 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,622 psi | 88% | 2661 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,637 psi | 90% | 2575 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,913 psi | 90% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,708 psi | 85% | 2543 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,255 psi | 78% | 2539 fps | 98.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 56,942 psi | 90% | 2680 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,535 psi | 88% | 2425 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,912 psi | 89% | 2572 fps | 99% |
| Bofors RP3 | <<locked>> | 94% | 53,417 psi | 85% | 2543 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,070 psi | 86% | 2464 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,375 psi | 86% | 2546 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,289 psi | 89% | 2631 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 84% | 55,825 psi | 88% | 2513 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,447 psi | 85% | 2493 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,679 psi | 87% | 2549 fps | 98.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,621 psi | 85% | 2585 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 90% | 56,608 psi | 90% | 2569 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,324 psi | 72% | 2434 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,680 psi | 88% | 2598 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,925 psi | 55% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,563 psi | 86% | 2526 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 56,115 psi | 89% | 2556 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,405 psi | 89% | 2539 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,884 psi | 90% | 2520 fps | 96.6% |
| IMR 4198 | <<locked>> | 84% | 56,840 psi | 90% | 2438 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,289 psi | 89% | 2539 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,747 psi | 76% | 2484 fps | 97.7% |
| IMR 4895 | <<locked>> | 92% | 55,042 psi | 87% | 2572 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 88% | 55,419 psi | 88% | 2520 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 55,245 psi | 88% | 2507 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,274 psi | 88% | 2539 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,115 psi | 89% | 2497 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 56,014 psi | 89% | 2536 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,056 psi | 87% | 2530 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,214 psi | 83% | 2507 fps | 95.9% |
| Norma 201 | <<locked>> | 90% | 54,882 psi | 87% | 2510 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 55,288 psi | 88% | 2516 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,521 psi | 90% | 2585 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 49,705 psi | 79% | 2526 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 94% | 56,811 psi | 90% | 2605 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,081 psi | 78% | 2520 fps | 95.9% |
| Ramshot TAC | <<locked>> | 88% | 55,434 psi | 88% | 2530 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,013 psi | 87% | 2549 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,202 psi | 89% | 2520 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,389 psi | 56% | 1555 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,042 psi | 87% | 2503 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,448 psi | 88% | 2536 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,809 psi | 85% | 2602 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,403 psi | 85% | 2638 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,806 psi | 79% | 2556 fps | 97.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,401 psi | 80% | 2572 fps | 97.2% |
| Rottweil R 901 | <<locked>> | 88% | 55,825 psi | 88% | 2497 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,969 psi | 87% | 2507 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 56,695 psi | 90% | 2579 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,056 psi | 87% | 2530 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,274 psi | 88% | 2539 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,014 psi | 89% | 2536 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,214 psi | 83% | 2507 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,621 psi | 87% | 2477 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,897 psi | 87% | 2585 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,592 psi | 87% | 2461 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,650 psi | 85% | 2507 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,273 psi | 86% | 2530 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,594 psi | 90% | 2461 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,347 psi | 89% | 2457 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 55,738 psi | 88% | 2490 fps | 96.3% |
| Somchem S321 | <<locked>> | 86% | 56,710 psi | 90% | 2552 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,927 psi | 89% | 2464 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,461 psi | 85% | 2507 fps | 99.3% |
| Somchem S355 | <<locked>> | 96% | 53,664 psi | 85% | 2530 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,585 psi | 71% | 2484 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 86% | 56,782 psi | 90% | 2434 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,623 psi | 90% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,404 psi | 86% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,637 psi | 88% | 2497 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,230 psi | 88% | 2516 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,504 psi | 83% | 2533 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 88% | 56,028 psi | 89% | 2520 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,940 psi | 85% | 2493 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,416 psi | 81% | 2533 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,345 psi | 85% | 2523 fps | 99.7% |
| Winchester 748 | <<locked>> | 88% | 55,347 psi | 88% | 2562 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 53,621 psi | 85% | 2585 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 53,911 psi | 85% | 2536 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,556 psi | 71% | 2306 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,733 psi | 77% | 2405 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,362 psi | 59% | 2231 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,729 psi | 69% | 2362 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 35,331 psi | 56% | 2218 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 38,014 psi | 60% | 2326 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 53,084 psi | 84% | 2382 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,490 psi | 85% | 2405 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,060 psi | 65% | 2316 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 37,115 psi | 59% | 2224 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,120 psi | 68% | 2333 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 42,670 psi | 68% | 2329 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,154 psi | 79% | 2513 fps | 99.4% |
| Alliant Power Pro 2000-MR | 36.7 gr | 82% | 39,653 psi | 63% | 2379 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,113 psi | 54% | 2195 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,401 psi | 80% | 2395 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,912 psi | 59% | 2254 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 92% | 38,566 psi | 61% | 2336 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 33,649 psi | 53% | 2254 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,170 psi | 83% | 2382 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,074 psi | 64% | 2316 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 33,736 psi | 53% | 2198 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,063 psi | 71% | 2329 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,466 psi | 66% | 2346 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,411 psi | 72% | 2464 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 80% | 49,327 psi | 78% | 2428 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,980 psi | 79% | 2448 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 42,192 psi | 67% | 2349 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 98% | 50,111 psi | 79% | 2530 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 41,394 psi | 66% | 2326 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,330 psi | 53% | 2198 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,217 psi | 59% | 2293 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,034 psi | 41% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,813 psi | 63% | 2287 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 40,770 psi | 65% | 2333 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,651 psi | 58% | 2211 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,270 psi | 80% | 2425 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 50,633 psi | 80% | 2362 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,707 psi | 84% | 2487 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 39,305 psi | 62% | 2336 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,753 psi | 60% | 2280 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,120 psi | 68% | 2333 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 48,327 psi | 77% | 2408 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 39,639 psi | 63% | 2300 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 41,568 psi | 66% | 2270 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 36,521 psi | 58% | 2218 fps | 97.4% |
| Lovex S065 | <<locked>> | 94% | 45,803 psi | 73% | 2388 fps | 95.7% |
| Lovex S070 | <<locked>> | 98% | 49,168 psi | 78% | 2461 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,350 psi | 64% | 2280 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 40,263 psi | 64% | 2287 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 36,274 psi | 57% | 2244 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 40,930 psi | 65% | 2375 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,679 psi | 57% | 2251 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 98% | 45,890 psi | 73% | 2467 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 42,844 psi | 68% | 2326 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,177 psi | 67% | 2346 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,630 psi | 74% | 2375 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,266 psi | 42% | 1388 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,428 psi | 77% | 2411 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,588 psi | 77% | 2431 fps | 95.5% |
| ReloadSwiss RS 52 | 34.7 gr | 80% | 38,247 psi | 61% | 2339 fps | 95.9% |
| ReloadSwiss RS 60 | 35.2 gr | 80% | 31,372 psi | 50% | 2208 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,727 psi | 65% | 2398 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 44,005 psi | 70% | 2457 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 44,092 psi | 70% | 2323 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 38,377 psi | 61% | 2238 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 31,589 psi | 50% | 2142 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 45,803 psi | 73% | 2388 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,639 psi | 63% | 2300 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 36,521 psi | 58% | 2218 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 98% | 49,168 psi | 78% | 2461 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,082 psi | 81% | 2428 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,998 psi | 55% | 2241 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,271 psi | 81% | 2415 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,872 psi | 65% | 2297 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,552 psi | 63% | 2287 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,916 psi | 66% | 2251 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,621 psi | 55% | 2129 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 52,011 psi | 82% | 2438 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 46,456 psi | 74% | 2405 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 41,437 psi | 66% | 2254 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,872 psi | 65% | 2306 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 32,779 psi | 52% | 2159 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 30,443 psi | 48% | 2182 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 47,413 psi | 75% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,119 psi | 67% | 2251 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,565 psi | 60% | 2231 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,116 psi | 60% | 2231 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 30,937 psi | 49% | 2100 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 40,379 psi | 64% | 2333 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,178 psi | 68% | 2329 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 36,651 psi | 58% | 2218 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 39,755 psi | 63% | 2336 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 33,707 psi | 53% | 2175 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 42,380 psi | 67% | 2365 fps | 99.3% |
| Winchester 760 | <<locked>> | 98% | 50,488 psi | 80% | 2536 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,725 psi | 61% | 2290 fps | 97.3% |
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 97 powders for .277 Fury Commercial loaded with the .277 | 150gr | Norma Semi Soft Point. Alliant Reloder-17 delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,680 fps. Accurate 4350 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .277 Fury Commercial with the .277 | 150gr | Norma Semi Soft Point 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.