Load Specifications
Load data in caliber .277 Fury Commercial with .277 | 150gr | Berger VLD Hunting bullet and 96 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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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>> | 88% | 56,231 psi | 89% | 2461 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,389 psi | 86% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,853 psi | 85% | 2474 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 56,188 psi | 89% | 2536 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 57,043 psi | 90% | 2556 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,037 psi | 78% | 2513 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 82% | 55,288 psi | 88% | 2405 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,709 psi | 88% | 2428 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,114 psi | 87% | 2539 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 55,985 psi | 89% | 2536 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 82% | 56,478 psi | 90% | 2516 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,070 psi | 86% | 2493 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 88% | 54,534 psi | 86% | 2487 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,999 psi | 89% | 2592 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,520 psi | 86% | 2638 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,390 psi | 88% | 2556 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,724 psi | 88% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,115 psi | 89% | 2572 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,225 psi | 76% | 2513 fps | 97.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,883 psi | 89% | 2657 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,375 psi | 86% | 2405 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,694 psi | 87% | 2549 fps | 98.8% |
| Bofors RP3 | <<locked>> | 96% | 55,985 psi | 89% | 2569 fps | 99.9% |
| Bofors RP7ᴾ | <<locked>> | 100% | 56,362 psi | 89% | 2530 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,362 psi | 89% | 2487 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,840 psi | 90% | 2572 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,882 psi | 87% | 2608 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 84% | 55,172 psi | 87% | 2500 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,159 psi | 89% | 2526 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,838 psi | 85% | 2530 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 90% | 55,680 psi | 88% | 2549 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,251 psi | 70% | 2408 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,346 psi | 86% | 2575 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,056 psi | 56% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 57,043 psi | 90% | 2552 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 54,955 psi | 87% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,506 psi | 88% | 2520 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,173 psi | 89% | 2503 fps | 96.3% |
| IMR 4198 | <<locked>> | 84% | 56,014 psi | 89% | 2425 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 55,172 psi | 87% | 2516 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,615 psi | 74% | 2457 fps | 97.3% |
| IMR 4895 | <<locked>> | 92% | 54,157 psi | 86% | 2556 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 88% | 54,070 psi | 86% | 2493 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 54,317 psi | 86% | 2487 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,302 psi | 86% | 2520 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,245 psi | 88% | 2477 fps | 99.5% |
| Lovex S062 | <<locked>> | 94% | 55,143 psi | 87% | 2520 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,998 psi | 86% | 2507 fps | 97.3% |
| Norma 201 | <<locked>> | 90% | 53,954 psi | 86% | 2493 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 54,346 psi | 86% | 2497 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,259 psi | 88% | 2559 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 48,544 psi | 77% | 2503 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 94% | 55,622 psi | 88% | 2582 fps | 99.4% |
| Ramshot TAC | <<locked>> | 88% | 54,708 psi | 87% | 2510 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,780 psi | 85% | 2526 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,390 psi | 88% | 2500 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,201 psi | 56% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,041 psi | 86% | 2484 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,389 psi | 86% | 2513 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,304 psi | 89% | 2631 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,637 psi | 88% | 2661 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,747 psi | 77% | 2533 fps | 97.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,545 psi | 79% | 2549 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 88% | 54,810 psi | 87% | 2477 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,056 psi | 86% | 2487 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 55,419 psi | 88% | 2556 fps | 99.8% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 56,362 psi | 89% | 2530 fps | 95.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,998 psi | 86% | 2507 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,302 psi | 86% | 2520 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,143 psi | 87% | 2520 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,708 psi | 85% | 2457 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,710 psi | 90% | 2526 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,693 psi | 85% | 2562 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,826 psi | 90% | 2480 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,608 psi | 90% | 2539 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,739 psi | 90% | 2556 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,043 psi | 89% | 2448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,492 psi | 88% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,636 psi | 87% | 2467 fps | 95.9% |
| Somchem S321 | <<locked>> | 86% | 55,434 psi | 88% | 2530 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,027 psi | 87% | 2444 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,941 psi | 89% | 2533 fps | 99.4% |
| Somchem S355 | <<locked>> | 98% | 56,072 psi | 89% | 2556 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,540 psi | 69% | 2461 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 86% | 55,666 psi | 88% | 2415 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,028 psi | 89% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,811 psi | 90% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,752 psi | 87% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,056 psi | 86% | 2493 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,358 psi | 81% | 2510 fps | 98% |
| Vihtavuori N530 | <<locked>> | 88% | 54,621 psi | 87% | 2497 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 56,434 psi | 89% | 2520 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,357 psi | 80% | 2510 fps | 97.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,112 psi | 83% | 2497 fps | 99.5% |
| Winchester 748 | <<locked>> | 88% | 53,983 psi | 86% | 2539 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,855 psi | 90% | 2569 fps | 99.8% |
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% | 43,845 psi | 69% | 2290 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,776 psi | 76% | 2385 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,303 psi | 58% | 2211 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,743 psi | 68% | 2339 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 34,360 psi | 54% | 2195 fps | 99.1% |
| Accurate 4350 | <<locked>> | 94% | 39,784 psi | 63% | 2356 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 51,996 psi | 82% | 2362 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,388 psi | 83% | 2385 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,437 psi | 64% | 2300 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 36,593 psi | 58% | 2208 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 52,634 psi | 83% | 2467 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,496 psi | 67% | 2313 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 80% | 41,858 psi | 66% | 2316 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,356 psi | 78% | 2493 fps | 99.2% |
| Alliant Power Pro 2000-MR | 36 gr | 82% | 38,899 psi | 62% | 2356 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,533 psi | 53% | 2178 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,588 psi | 79% | 2379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,303 psi | 58% | 2234 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,248 psi | 64% | 2365 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 86% | 35,317 psi | 56% | 2287 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,343 psi | 81% | 2365 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,320 psi | 62% | 2297 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 32,895 psi | 52% | 2175 fps | 95.8% |
| Bofors RP7 | <<locked>> | 98% | 53,026 psi | 84% | 2480 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,469 psi | 70% | 2313 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,582 psi | 64% | 2326 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,469 psi | 70% | 2441 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 80% | 48,225 psi | 76% | 2405 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,023 psi | 78% | 2428 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 41,379 psi | 66% | 2329 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 40,756 psi | 65% | 2310 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 34,737 psi | 55% | 2224 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,405 psi | 58% | 2270 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,005 psi | 41% | 1348 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,914 psi | 62% | 2264 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 39,653 psi | 63% | 2310 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,042 psi | 57% | 2195 fps | 95.2% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,547 psi | 83% | 2451 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,777 psi | 79% | 2343 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,996 psi | 82% | 2470 fps | 95.3% |
| IMR 4831 | <<locked>> | 94% | 38,537 psi | 61% | 2316 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 37,130 psi | 59% | 2264 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 80% | 42,496 psi | 67% | 2313 fps | 98.6% |
| Lovex D073.5 | <<locked>> | 80% | 47,718 psi | 76% | 2395 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 38,986 psi | 62% | 2283 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 40,973 psi | 65% | 2251 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 35,926 psi | 57% | 2201 fps | 97.2% |
| Lovex S065 | <<locked>> | 94% | 45,034 psi | 71% | 2369 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 39,421 psi | 62% | 2257 fps | 98.1% |
| Norma 202 | <<locked>> | 80% | 39,581 psi | 63% | 2270 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 35,679 psi | 57% | 2224 fps | 95.6% |
| Norma URP | <<locked>> | 94% | 40,234 psi | 64% | 2356 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 37,391 psi | 59% | 2280 fps | 95.9% |
| Ramshot TAC | <<locked>> | 82% | 44,933 psi | 71% | 2356 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,365 psi | 66% | 2326 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,832 psi | 73% | 2356 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,223 psi | 42% | 1381 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,456 psi | 75% | 2392 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,834 psi | 76% | 2415 fps | 95.2% |
| ReloadSwiss RS 52 | 34 gr | 80% | 37,260 psi | 59% | 2313 fps | 95.4% |
| ReloadSwiss RS 60 | 34.6 gr | 80% | 30,908 psi | 49% | 2188 fps | 96.4% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,308 psi | 67% | 2421 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,238 psi | 73% | 2490 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,381 psi | 69% | 2306 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 37,724 psi | 60% | 2218 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 82% | 33,054 psi | 52% | 2175 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 98% | 53,026 psi | 84% | 2480 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 45,034 psi | 71% | 2369 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,986 psi | 62% | 2283 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 35,926 psi | 57% | 2201 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,125 psi | 79% | 2408 fps | 99.4% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,040 psi | 84% | 2477 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 36,419 psi | 58% | 2267 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,459 psi | 80% | 2398 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,931 psi | 68% | 2329 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,725 psi | 61% | 2267 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,234 psi | 65% | 2234 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,040 psi | 54% | 2113 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 51,213 psi | 81% | 2421 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 45,585 psi | 72% | 2385 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 40,495 psi | 64% | 2231 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 40,045 psi | 63% | 2287 fps | 96.8% |
| Somchem S355 | <<locked>> | 82% | 34,011 psi | 54% | 2182 fps | 95.6% |
| Somchem S365 | <<locked>> | 90% | 31,676 psi | 50% | 2211 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 46,702 psi | 74% | 2300 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,452 psi | 66% | 2234 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,840 psi | 58% | 2215 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,507 psi | 59% | 2218 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 30,385 psi | 48% | 2083 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 92% | 39,624 psi | 63% | 2313 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 42,235 psi | 67% | 2306 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 36,100 psi | 57% | 2205 fps | 99% |
| Vihtavuori N550 | <<locked>> | 94% | 41,553 psi | 66% | 2365 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,201 psi | 56% | 2201 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 41,437 psi | 66% | 2343 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,884 psi | 60% | 2267 fps | 97% |
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 96 powders for .277 Fury Commercial loaded with the .277 | 150gr | Berger VLD Hunting. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,661 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,661 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:10.5 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 | Berger VLD Hunting 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.