Load Specifications
Load data in caliber 7.5 x 55 Swiss with .3085 | 190gr | Prvi Partizan HP BT 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, Hodgdon Superformance and ReloadSwiss RS 60.
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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 48,298 psi | 88% | 2549 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,821 psi | 90% | 2608 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,834 psi | 87% | 2546 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,435 psi | 70% | 2510 fps | 97.3% |
| Accurate 4064 | <<locked>> | 88% | 48,385 psi | 88% | 2595 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 47,108 psi | 85% | 2674 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 49,066 psi | 89% | 2625 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 46,978 psi | 85% | 2579 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 46,615 psi | 85% | 2651 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,370 psi | 88% | 2579 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 48,602 psi | 88% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 47,906 psi | 87% | 2730 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 46,673 psi | 85% | 2598 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,152 psi | 86% | 2618 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,037 psi | 89% | 2726 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 46,659 psi | 85% | 2713 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 45,556 psi | 83% | 2644 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,289 psi | 68% | 2546 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,307 psi | 75% | 2697 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,399 psi | 88% | 2638 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 46,847 psi | 85% | 2615 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 47,572 psi | 86% | 2589 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 46,905 psi | 85% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 47,877 psi | 87% | 2625 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 46,833 psi | 85% | 2671 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 92% | 48,269 psi | 88% | 2638 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 49,501 psi | 90% | 2631 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,443 psi | 88% | 2654 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,312 psi | 88% | 2664 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 47,326 psi | 86% | 2703 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 64% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,674 psi | 87% | 2592 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 49,139 psi | 89% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,458 psi | 90% | 2605 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,719 psi | 90% | 2589 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 47,297 psi | 86% | 2608 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,385 psi | 90% | 2618 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 47,964 psi | 87% | 2667 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 48,283 psi | 88% | 2644 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 48,370 psi | 88% | 2579 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 48,211 psi | 87% | 2595 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,008 psi | 89% | 2556 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 49,240 psi | 89% | 2602 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 48,457 psi | 88% | 2608 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 49,168 psi | 89% | 2644 fps | 98.6% |
| Norma 201 | <<locked>> | 84% | 48,182 psi | 87% | 2575 fps | 100% |
| Norma 202 | <<locked>> | 84% | 48,414 psi | 88% | 2572 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,603 psi | 90% | 2654 fps | 100% |
| Norma 204 | <<locked>> | 96% | 47,369 psi | 86% | 2651 fps | 96.4% |
| Norma MRPᴾ | <<locked>> | 100% | 41,350 psi | 75% | 2654 fps | 96.9% |
| Norma URP | <<locked>> | 96% | 46,905 psi | 85% | 2667 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 49,458 psi | 90% | 2674 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 48,834 psi | 89% | 2713 fps | 99.1% |
| Ramshot TAC | <<locked>> | 82% | 48,283 psi | 88% | 2595 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 47,747 psi | 87% | 2612 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,984 psi | 65% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,225 psi | 88% | 2608 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 46,847 psi | 85% | 2674 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,748 psi | 90% | 2759 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,746 psi | 85% | 2697 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 46,746 psi | 85% | 2717 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 49,400 psi | 90% | 2552 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,718 psi | 88% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 49,777 psi | 90% | 2648 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 43,976 psi | 80% | 2625 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 92% | 47,572 psi | 86% | 2589 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,457 psi | 88% | 2608 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,211 psi | 87% | 2595 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,240 psi | 89% | 2602 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 49,168 psi | 89% | 2644 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,051 psi | 87% | 2661 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,835 psi | 90% | 2621 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,442 psi | 86% | 2598 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,806 psi | 90% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,661 psi | 90% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,573 psi | 88% | 2562 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 43,598 psi | 79% | 2618 fps | 96% |
| Somchem S335 | <<locked>> | 84% | 49,153 psi | 89% | 2513 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,298 psi | 89% | 2612 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 47,384 psi | 86% | 2605 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,645 psi | 86% | 2710 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 44,353 psi | 80% | 2605 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 82% | 47,065 psi | 85% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 47,950 psi | 87% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,936 psi | 89% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,356 psi | 88% | 2582 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 49,110 psi | 89% | 2657 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 48,356 psi | 88% | 2572 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 47,050 psi | 85% | 2556 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,211 psi | 87% | 2667 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,379 psi | 73% | 2615 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,414 psi | 90% | 2638 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 48,153 psi | 87% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 47,108 psi | 85% | 2674 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,286 psi | 60% | 2562 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,108 psi | 85% | 2605 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 39,595 psi | 72% | 2421 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,514 psi | 84% | 2562 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 39,247 psi | 71% | 2395 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 31,314 psi | 57% | 2362 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 37,478 psi | 68% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 27,122 psi | 49% | 2267 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 43,207 psi | 78% | 2530 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,811 psi | 67% | 2395 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 98% | 43,845 psi | 80% | 2602 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,237 psi | 82% | 2530 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 45,469 psi | 83% | 2507 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,102 psi | 71% | 2569 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,448 psi | 66% | 2418 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,001 psi | 71% | 2474 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 28,456 psi | 52% | 2287 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,401 psi | 57% | 2402 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 98% | 42,641 psi | 77% | 2592 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 24,540 psi | 45% | 2208 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 29,370 psi | 53% | 2411 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,380 psi | 77% | 2539 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 35,911 psi | 65% | 2425 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 39,436 psi | 72% | 2441 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,859 psi | 80% | 2556 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,680 psi | 67% | 2425 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 36,201 psi | 66% | 2470 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 88% | 42,482 psi | 77% | 2539 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 43,569 psi | 79% | 2536 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 25,904 psi | 47% | 2195 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,595 psi | 72% | 2520 fps | 99.9% |
| Hodgdon Superformance | 50.4 gr | 88% | 38,276 psi | 69% | 2530 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 48% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,945 psi | 76% | 2497 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 43,395 psi | 79% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,638 psi | 70% | 2421 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,089 psi | 75% | 2441 fps | 96.6% |
| IMR 4350 | <<locked>> | 90% | 39,508 psi | 72% | 2470 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 36,434 psi | 66% | 2382 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 26,847 psi | 49% | 2238 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,914 psi | 72% | 2503 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 45,237 psi | 82% | 2530 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,293 psi | 77% | 2507 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,453 psi | 79% | 2464 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 38,522 psi | 70% | 2428 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 31,618 psi | 57% | 2283 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 36,129 psi | 66% | 2408 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 42,351 psi | 77% | 2480 fps | 100% |
| Norma 202 | <<locked>> | 80% | 42,786 psi | 78% | 2487 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,363 psi | 70% | 2464 fps | 99.4% |
| Norma 204 | <<locked>> | 94% | 44,527 psi | 81% | 2602 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 36,434 psi | 66% | 2549 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 28,108 psi | 51% | 2277 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,768 psi | 69% | 2477 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 33,344 psi | 61% | 2411 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 45,237 psi | 82% | 2546 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,701 psi | 81% | 2566 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 48% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,246 psi | 68% | 2408 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,857 psi | 74% | 2572 fps | 99.5% |
| ReloadSwiss RS 60 | 43.4 gr | 80% | 33,431 psi | 61% | 2461 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 29,153 psi | 53% | 2336 fps | 95.7% |
| ReloadSwiss RS 70 | 46.2 gr | 84% | 31,488 psi | 57% | 2392 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 46,499 psi | 84% | 2513 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,553 psi | 74% | 2441 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 33,823 psi | 61% | 2372 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 98% | 41,307 psi | 75% | 2572 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 86% | 39,436 psi | 72% | 2441 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 31,618 psi | 57% | 2283 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,293 psi | 77% | 2507 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,522 psi | 70% | 2428 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 36,129 psi | 66% | 2408 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,737 psi | 63% | 2421 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,540 psi | 79% | 2523 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,785 psi | 76% | 2503 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,932 psi | 80% | 2428 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,448 psi | 66% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 34,911 psi | 63% | 2326 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 40,959 psi | 74% | 2569 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 43,337 psi | 79% | 2428 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,163 psi | 78% | 2516 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 34,621 psi | 63% | 2375 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 25,106 psi | 46% | 2231 fps | 97.6% |
| Somchem S385 | <<locked>> | 96% | 39,160 psi | 71% | 2510 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 44,193 psi | 80% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,813 psi | 72% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,437 psi | 73% | 2428 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,967 psi | 60% | 2316 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 29,240 psi | 53% | 2274 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,455 psi | 82% | 2526 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 38,754 psi | 70% | 2421 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 28,660 psi | 52% | 2277 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 25,875 psi | 47% | 2274 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,283 psi | 53% | 2254 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 44,991 psi | 82% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 36,448 psi | 66% | 2474 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 24,308 psi | 44% | 2270 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,176 psi | 75% | 2510 fps | 99.9% |
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 114 powders for 7.5 x 55 Swiss loaded with the .3085 | 190gr | Prvi Partizan HP BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,759 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.3085" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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, Hodgdon Superformance, ReloadSwiss RS 60 rank at the top here: for 7.5 x 55 Swiss with the .3085 | 190gr | Prvi Partizan HP BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Alliant Reloder-22 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.