Load Specifications
Load data in caliber .270 Win. with .277 | 154gr | Reichenberg Mag Dr ckjagd bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 53,954 psi | 87% | 2615 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,926 psi | 88% | 2677 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,170 psi | 84% | 2720 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 54,085 psi | 87% | 2667 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,534 psi | 87% | 2769 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 54,288 psi | 87% | 2854 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 54,186 psi | 87% | 2694 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,550 psi | 89% | 2808 fps | 98.3% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,200 psi | 85% | 2799 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,403 psi | 86% | 2815 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,158 psi | 88% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,187 psi | 88% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,434 psi | 89% | 2825 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,910 psi | 85% | 2795 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,781 psi | 88% | 2795 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,895 psi | 83% | 2799 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,965 psi | 79% | 2736 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,757 psi | 69% | 2661 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2927 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,587 psi | 76% | 2723 fps | 96.9% |
| Bofors RP3 | <<locked>> | 86% | 55,680 psi | 89% | 2733 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,895 psi | 83% | 2799 fps | 98% |
| Bofors RP7 | <<locked>> | 90% | 55,230 psi | 89% | 2720 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 56,391 psi | 90% | 2753 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 53,214 psi | 85% | 2766 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 53,098 psi | 85% | 2723 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 98% | 53,229 psi | 85% | 2746 fps | 96% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2785 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,622 psi | 89% | 2746 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,751 psi | 86% | 2733 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 53,142 psi | 85% | 2799 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 58% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,810 psi | 88% | 2700 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,911 psi | 86% | 2680 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,098 psi | 85% | 2664 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,970 psi | 90% | 2749 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,417 psi | 86% | 2694 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 55,085 psi | 88% | 2762 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,142 psi | 85% | 2713 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,085 psi | 88% | 2740 fps | 96.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,517 psi | 81% | 2769 fps | 96.2% |
| Lovex S060 | <<locked>> | 82% | 55,390 psi | 89% | 2664 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,085 psi | 87% | 2674 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,388 psi | 86% | 2690 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 54,853 psi | 88% | 2736 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,352 psi | 70% | 2575 fps | 98.3% |
| Norma 201 | <<locked>> | 82% | 55,492 psi | 89% | 2687 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,014 psi | 90% | 2680 fps | 100% |
| Norma 203B | <<locked>> | 84% | 54,476 psi | 87% | 2726 fps | 100% |
| Norma 204 | <<locked>> | 92% | 53,316 psi | 85% | 2753 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2881 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 53,461 psi | 86% | 2756 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,143 psi | 88% | 2753 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2785 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 94% | 55,651 psi | 89% | 2808 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,092 psi | 72% | 2661 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,956 psi | 59% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,115 psi | 90% | 2736 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 56,246 psi | 90% | 2805 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,246 psi | 90% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,259 psi | 87% | 2789 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,895 psi | 85% | 2818 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,684 psi | 67% | 2677 fps | 97% |
| Rottweil R 902 | <<locked>> | 84% | 56,086 psi | 90% | 2684 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,883 psi | 90% | 2730 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,925 psi | 86% | 2730 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 54,012 psi | 87% | 2785 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 90% | 55,230 psi | 89% | 2720 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,388 psi | 86% | 2690 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,085 psi | 87% | 2674 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,853 psi | 88% | 2736 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,969 psi | 87% | 2740 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,013 psi | 88% | 2713 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,231 psi | 90% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,766 psi | 86% | 2579 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,113 psi | 85% | 2648 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,519 psi | 86% | 2779 fps | 98.2% |
| Somchem S335 | <<locked>> | 82% | 55,970 psi | 90% | 2615 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,927 psi | 90% | 2726 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,376 psi | 89% | 2720 fps | 96.4% |
| Somchem S365 | <<locked>> | 96% | 55,927 psi | 90% | 2805 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,694 psi | 88% | 2762 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 84% | 56,217 psi | 90% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,040 psi | 85% | 2615 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,693 psi | 86% | 2654 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,477 psi | 89% | 2749 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,430 psi | 81% | 2684 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 54,650 psi | 88% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,563 psi | 87% | 2753 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,810 psi | 88% | 2808 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,564 psi | 89% | 2871 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,245 psi | 89% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,519 psi | 86% | 2769 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,222 psi | 71% | 2792 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,230 psi | 89% | 2723 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2753 fps | 98.1% |
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 2495 | <<locked>> | 80% | 50,502 psi | 81% | 2569 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,182 psi | 77% | 2572 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 32,460 psi | 52% | 2349 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 47,834 psi | 77% | 2575 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,143 psi | 58% | 2444 fps | 98% |
| Accurate MAGPRO | <<locked>> | 98% | 50,444 psi | 81% | 2792 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 45,324 psi | 73% | 2552 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,018 psi | 69% | 2592 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 98% | 49,792 psi | 80% | 2743 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,676 psi | 80% | 2756 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,542 psi | 73% | 2572 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,588 psi | 78% | 2638 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,520 psi | 57% | 2454 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,074 psi | 64% | 2575 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,424 psi | 68% | 2582 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,612 psi | 68% | 2631 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,991 psi | 42% | 2221 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,214 psi | 53% | 2438 fps | 95.7% |
| Alliant Reloder-26 | 49.5 gr | 84% | 31,633 psi | 51% | 2441 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 41,814 psi | 67% | 2612 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 45,818 psi | 73% | 2585 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,612 psi | 68% | 2631 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 40,422 psi | 65% | 2461 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 46,253 psi | 74% | 2595 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,247 psi | 61% | 2490 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,191 psi | 66% | 2510 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 49,835 psi | 80% | 2690 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,272 psi | 84% | 2730 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,011 psi | 53% | 2356 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,386 psi | 81% | 2684 fps | 100% |
| Hodgdon Superformance | 48.6 gr | 80% | 37,115 psi | 60% | 2493 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 44% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,401 psi | 82% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,688 psi | 76% | 2585 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,879 psi | 80% | 2612 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 38,551 psi | 62% | 2444 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,829 psi | 67% | 2490 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,012 psi | 56% | 2405 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 49,850 psi | 80% | 2664 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,588 psi | 78% | 2635 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 47,268 psi | 76% | 2710 fps | 95.2% |
| Lovex S060 | <<locked>> | 80% | 52,069 psi | 83% | 2615 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,616 psi | 76% | 2579 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,450 psi | 63% | 2448 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 37,739 psi | 61% | 2428 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 33,663 psi | 54% | 2379 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 52,083 psi | 84% | 2638 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,576 psi | 84% | 2631 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,964 psi | 77% | 2625 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,511 psi | 70% | 2582 fps | 95.5% |
| Norma MRP | <<locked>> | 88% | 36,477 psi | 58% | 2526 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 36,216 psi | 58% | 2444 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 48,254 psi | 77% | 2648 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,398 psi | 76% | 2723 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 35,056 psi | 56% | 2428 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 39,117 psi | 63% | 2543 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 45% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,282 psi | 74% | 2579 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,649 psi | 84% | 2753 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,598 psi | 68% | 2628 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,839 psi | 57% | 2461 fps | 97.7% |
| ReloadSwiss RS 70 | 46.7 gr | 80% | 35,056 psi | 56% | 2467 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,841 psi | 62% | 2612 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 49,676 psi | 80% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,265 psi | 69% | 2536 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 47,427 psi | 76% | 2621 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 41,350 psi | 66% | 2562 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,422 psi | 65% | 2461 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,450 psi | 63% | 2448 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 47,616 psi | 76% | 2579 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,739 psi | 61% | 2428 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,309 psi | 71% | 2585 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,721 psi | 83% | 2664 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,997 psi | 85% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,773 psi | 72% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,508 psi | 62% | 2392 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,959 psi | 66% | 2559 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 52,620 psi | 84% | 2572 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,598 psi | 70% | 2533 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,054 psi | 83% | 2671 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 32,590 psi | 52% | 2402 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 39,392 psi | 63% | 2493 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 49,893 psi | 80% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,067 psi | 80% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,655 psi | 67% | 2470 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,434 psi | 60% | 2441 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 38,754 psi | 62% | 2474 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,254 psi | 77% | 2566 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,014 psi | 59% | 2444 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 28,471 psi | 46% | 2297 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 96% | 48,486 psi | 78% | 2749 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,738 psi | 59% | 2415 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 38,247 psi | 61% | 2490 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,439 psi | 39% | 2241 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,547 psi | 83% | 2667 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,640 psi | 67% | 2536 fps | 95.1% |
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 103 powders for .270 Win. loaded with the .277 | 154gr | Reichenberg Mag Dr ckjagd. Alliant Reloder-26 delivers the highest muzzle velocity at 2,927 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,927 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for .270 Win. with the .277 | 154gr | Reichenberg Mag Dr ckjagd they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.