Load Specifications
Load data in caliber .277 Fury Commercial with .277 | 150gr | Rhino Penetrator bullet and 94 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 52 and Hodgdon LEVERevolution.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 56,710 psi | 90% | 2444 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 56,898 psi | 90% | 2530 fps | 98.9% |
| Accurate 2460 | <<locked>> | 86% | 55,477 psi | 88% | 2470 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 53,954 psi | 86% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 57,087 psi | 90% | 2526 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 56,956 psi | 90% | 2536 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,397 psi | 72% | 2438 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 84% | 56,594 psi | 90% | 2398 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 57,029 psi | 90% | 2421 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,535 psi | 88% | 2523 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 98% | 56,275 psi | 89% | 2513 fps | 98.9% |
| ADI AR 2219 | <<locked>> | 82% | 53,795 psi | 85% | 2464 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,781 psi | 87% | 2484 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 90% | 54,795 psi | 87% | 2474 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,768 psi | 90% | 2582 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 55,013 psi | 87% | 2618 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,535 psi | 88% | 2536 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 56,768 psi | 90% | 2454 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,695 psi | 90% | 2556 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,585 psi | 72% | 2444 fps | 96.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,895 psi | 84% | 2592 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,637 psi | 88% | 2402 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,506 psi | 88% | 2539 fps | 98.6% |
| Bofors RP3 | <<locked>> | 98% | 56,275 psi | 89% | 2552 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,722 psi | 85% | 2431 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,519 psi | 85% | 2510 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,680 psi | 88% | 2595 fps | 99% |
| Hodgdon H322 | <<locked>> | 86% | 55,593 psi | 88% | 2487 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 56,985 psi | 90% | 2513 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,143 psi | 86% | 2513 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 92% | 56,043 psi | 89% | 2533 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,945 psi | 66% | 2349 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,491 psi | 86% | 2559 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,882 psi | 55% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,114 psi | 86% | 2490 fps | 99.4% |
| IMR 3031 | <<locked>> | 92% | 55,347 psi | 88% | 2523 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 56,086 psi | 89% | 2503 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 94% | 57,043 psi | 90% | 2487 fps | 96% |
| IMR 4198 | <<locked>> | 86% | 56,927 psi | 90% | 2415 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,714 psi | 69% | 2392 fps | 96.2% |
| IMR 4895 | <<locked>> | 94% | 54,534 psi | 86% | 2536 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 90% | 54,781 psi | 87% | 2484 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 86% | 55,085 psi | 87% | 2477 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,621 psi | 87% | 2507 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,695 psi | 88% | 2461 fps | 99.3% |
| Lovex S062 | <<locked>> | 96% | 55,579 psi | 88% | 2503 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,140 psi | 81% | 2441 fps | 96.3% |
| Norma 200 | <<locked>> | 82% | 56,463 psi | 89% | 2428 fps | 100% |
| Norma 201 | <<locked>> | 92% | 54,201 psi | 86% | 2474 fps | 99.8% |
| Norma 202 | <<locked>> | 92% | 54,563 psi | 86% | 2484 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,825 psi | 88% | 2546 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 45,643 psi | 72% | 2434 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 96% | 56,115 psi | 89% | 2569 fps | 99.3% |
| Ramshot TAC | <<locked>> | 90% | 55,564 psi | 88% | 2497 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,404 psi | 86% | 2513 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 88% | 56,449 psi | 89% | 2490 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 55% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,621 psi | 87% | 2474 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,868 psi | 87% | 2493 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 56,681 psi | 90% | 2615 fps | 99.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 56,463 psi | 89% | 2651 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,382 psi | 72% | 2457 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 90% | 55,564 psi | 88% | 2467 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,795 psi | 87% | 2474 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,651 psi | 88% | 2539 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,140 psi | 81% | 2441 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,621 psi | 87% | 2507 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,579 psi | 88% | 2503 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,505 psi | 86% | 2448 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,985 psi | 90% | 2178 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,911 psi | 85% | 2470 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 54,085 psi | 86% | 2546 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,230 psi | 86% | 2431 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,505 psi | 85% | 2474 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,027 psi | 86% | 2500 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 56,826 psi | 90% | 2434 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 56,173 psi | 89% | 2431 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 56,376 psi | 89% | 2520 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 55,376 psi | 88% | 2431 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,797 psi | 90% | 2523 fps | 99.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 56,376 psi | 89% | 2539 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,611 psi | 64% | 2388 fps | 98.5% |
| Vihtavuori N130 | <<locked>> | 88% | 56,536 psi | 90% | 2408 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 56,681 psi | 90% | 2425 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 56,971 psi | 90% | 2490 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,172 psi | 87% | 2467 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,447 psi | 86% | 2480 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,109 psi | 76% | 2438 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 90% | 55,506 psi | 88% | 2487 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 96% | 56,782 psi | 90% | 2503 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,239 psi | 75% | 2441 fps | 96.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,342 psi | 78% | 2431 fps | 98.9% |
| Winchester 748 | <<locked>> | 90% | 54,795 psi | 87% | 2530 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,693 psi | 85% | 2507 fps | 99.4% |
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% | 41,858 psi | 66% | 2244 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 53,287 psi | 84% | 2477 fps | 98.5% |
| Accurate 2460 | <<locked>> | 80% | 45,324 psi | 72% | 2333 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,374 psi | 54% | 2162 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,335 psi | 64% | 2283 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 32,489 psi | 51% | 2142 fps | 98.4% |
| Accurate 4350 | <<locked>> | 96% | 39,769 psi | 63% | 2339 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 50,212 psi | 80% | 2316 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,604 psi | 80% | 2336 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,203 psi | 61% | 2238 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 39,320 psi | 62% | 2244 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 50,343 psi | 80% | 2418 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,161 psi | 64% | 2254 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 39,291 psi | 62% | 2264 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,456 psi | 74% | 2425 fps | 98.6% |
| Alliant Power Pro 2000-MR | 35.8 gr | 86% | 42,163 psi | 67% | 2402 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,823 psi | 54% | 2169 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,369 psi | 75% | 2333 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,885 psi | 62% | 2270 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,480 psi | 64% | 2346 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,404 psi | 56% | 2270 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,921 psi | 78% | 2313 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,827 psi | 63% | 2287 fps | 95.2% |
| Bofors RP3 | <<locked>> | 82% | 33,141 psi | 53% | 2165 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,496 psi | 67% | 2257 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,435 psi | 61% | 2267 fps | 98% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,250 psi | 67% | 2382 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 80% | 45,934 psi | 73% | 2352 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,659 psi | 74% | 2375 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 44,483 psi | 71% | 2362 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 38,464 psi | 61% | 2247 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,766 psi | 55% | 2205 fps | 95% |
| Hodgdon LEVERevolution | 32.6 gr | 80% | 34,389 psi | 55% | 2211 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,715 psi | 41% | 1325 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,043 psi | 59% | 2208 fps | 96.2% |
| IMR 3031 | <<locked>> | 80% | 37,579 psi | 60% | 2260 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,667 psi | 61% | 2228 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,606 psi | 85% | 2438 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 47,863 psi | 76% | 2300 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 40,901 psi | 65% | 2343 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 34,911 psi | 55% | 2198 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 40,161 psi | 64% | 2254 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 80% | 44,991 psi | 71% | 2333 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 36,651 psi | 58% | 2224 fps | 98.5% |
| Lovex S060 | <<locked>> | 80% | 39,117 psi | 62% | 2195 fps | 96.4% |
| Lovex S062 | <<locked>> | 80% | 33,953 psi | 54% | 2142 fps | 96.2% |
| Lovex S065 | <<locked>> | 98% | 47,935 psi | 76% | 2395 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 53,432 psi | 85% | 2388 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,710 psi | 60% | 2208 fps | 97.3% |
| Norma 202 | <<locked>> | 80% | 37,507 psi | 59% | 2218 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 35,795 psi | 57% | 2211 fps | 95.2% |
| Norma URP | <<locked>> | 98% | 42,772 psi | 68% | 2385 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 84% | 37,579 psi | 60% | 2267 fps | 95.5% |
| Ramshot TAC | <<locked>> | 84% | 45,876 psi | 73% | 2349 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,291 psi | 62% | 2267 fps | 96.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,482 psi | 69% | 2297 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,933 psi | 41% | 1358 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,034 psi | 71% | 2333 fps | 99.6% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 51,547 psi | 82% | 2448 fps | 95.6% |
| ReloadSwiss RS 52 | 33.1 gr | 82% | 37,768 psi | 60% | 2306 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 31,241 psi | 50% | 2178 fps | 96% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,482 psi | 67% | 2405 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,466 psi | 66% | 2254 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 35,723 psi | 57% | 2159 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 84% | 33,083 psi | 52% | 2159 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 47,935 psi | 76% | 2395 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,651 psi | 58% | 2224 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 33,953 psi | 54% | 2142 fps | 96.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,863 psi | 76% | 2352 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,896 psi | 85% | 2146 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,618 psi | 80% | 2425 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,869 psi | 58% | 2257 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,790 psi | 76% | 2343 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,671 psi | 69% | 2323 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,970 psi | 59% | 2215 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,146 psi | 62% | 2178 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,111 psi | 51% | 2057 fps | 98.8% |
| Somchem S321 | <<locked>> | 80% | 43,105 psi | 68% | 2323 fps | 98.7% |
| Somchem S335 | <<locked>> | 80% | 38,885 psi | 62% | 2185 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 37,739 psi | 60% | 2221 fps | 95.7% |
| Somchem S355 | <<locked>> | 84% | 34,389 psi | 55% | 2172 fps | 95.3% |
| Somchem S365 | <<locked>> | 92% | 31,618 psi | 50% | 2188 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 44,367 psi | 70% | 2247 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,247 psi | 62% | 2182 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,563 psi | 55% | 2159 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,549 psi | 56% | 2162 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 30,661 psi | 49% | 2077 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 96% | 42,525 psi | 67% | 2346 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 40,263 psi | 64% | 2254 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 34,098 psi | 54% | 2149 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 96% | 41,510 psi | 66% | 2346 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,592 psi | 56% | 2188 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 39,117 psi | 62% | 2287 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,839 psi | 57% | 2208 fps | 95.9% |
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 94 powders for .277 Fury Commercial loaded with the .277 | 150gr | Rhino Penetrator. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,651 fps; across all powders the maximum-charge window runs from 1,493 fps to 2,651 fps. Accurate 4350 gives the best case fill at 100 %, and 94 of the 94 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 1:9.0 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 52, Hodgdon LEVERevolution rank at the top here: for .277 Fury Commercial with the .277 | 150gr | Rhino Penetrator 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.