Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 180gr | Norma Semi Soft Point bullet and 95 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 Alliant Reloder-17.
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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 48,327 psi | 88% | 2641 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,690 psi | 90% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,761 psi | 87% | 2635 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,595 psi | 70% | 2598 fps | 97.1% |
| Accurate 4064 | <<locked>> | 88% | 48,283 psi | 88% | 2687 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 47,210 psi | 86% | 2766 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 49,095 psi | 89% | 2717 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 47,195 psi | 86% | 2674 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 46,818 psi | 85% | 2743 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,211 psi | 87% | 2667 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 48,602 psi | 88% | 2641 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,022 psi | 87% | 2828 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 46,789 psi | 85% | 2694 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,326 psi | 86% | 2713 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,240 psi | 89% | 2825 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,864 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 45,716 psi | 83% | 2736 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,318 psi | 68% | 2631 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,292 psi | 75% | 2785 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,559 psi | 88% | 2733 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 46,818 psi | 85% | 2707 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 47,485 psi | 86% | 2674 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,050 psi | 85% | 2697 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 47,819 psi | 87% | 2717 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 94% | 46,949 psi | 85% | 2762 fps | 98% |
| Hodgdon H4350 | <<locked>> | 92% | 48,269 psi | 88% | 2730 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 84% | 49,530 psi | 90% | 2726 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,530 psi | 88% | 2746 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,530 psi | 88% | 2759 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 47,210 psi | 86% | 2789 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 64% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,732 psi | 87% | 2684 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 49,313 psi | 89% | 2707 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,676 psi | 90% | 2700 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,574 psi | 90% | 2677 fps | 98.1% |
| IMR 4350 | <<locked>> | 96% | 47,427 psi | 86% | 2700 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,211 psi | 89% | 2707 fps | 98% |
| IMR 4831 | <<locked>> | 98% | 47,993 psi | 87% | 2759 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 48,457 psi | 88% | 2740 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 48,211 psi | 87% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 48,341 psi | 88% | 2690 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,153 psi | 89% | 2648 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 49,458 psi | 90% | 2700 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 48,544 psi | 88% | 2700 fps | 99% |
| Lovex S070 | <<locked>> | 96% | 49,081 psi | 89% | 2733 fps | 98.4% |
| Norma 201 | <<locked>> | 84% | 48,037 psi | 87% | 2664 fps | 100% |
| Norma 202 | <<locked>> | 84% | 48,530 psi | 88% | 2667 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,676 psi | 90% | 2749 fps | 100% |
| Norma 204 | <<locked>> | 96% | 47,601 psi | 86% | 2743 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 41,466 psi | 75% | 2743 fps | 96.6% |
| Norma URP | <<locked>> | 96% | 46,833 psi | 85% | 2756 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 88% | 49,734 psi | 90% | 2772 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 48,907 psi | 89% | 2805 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 48,312 psi | 88% | 2687 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 47,790 psi | 87% | 2707 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,897 psi | 65% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,341 psi | 88% | 2700 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 46,978 psi | 85% | 2769 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,835 psi | 90% | 2858 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,847 psi | 85% | 2789 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 47,036 psi | 85% | 2812 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 49,240 psi | 89% | 2644 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,501 psi | 88% | 2664 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 46,731 psi | 85% | 2697 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 43,918 psi | 80% | 2710 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 92% | 47,485 psi | 86% | 2674 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,544 psi | 88% | 2700 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,341 psi | 88% | 2690 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,458 psi | 90% | 2700 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 49,081 psi | 89% | 2733 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,080 psi | 87% | 2756 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,748 psi | 90% | 2713 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,543 psi | 86% | 2690 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,545 psi | 90% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,588 psi | 90% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,486 psi | 88% | 2651 fps | 98% |
| Somchem S335 | <<locked>> | 84% | 49,023 psi | 89% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,530 psi | 90% | 2707 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 47,456 psi | 86% | 2697 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,863 psi | 87% | 2808 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 44,440 psi | 81% | 2694 fps | 96.8% |
| Vihtavuori N133 | <<locked>> | 84% | 49,763 psi | 90% | 2585 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 48,167 psi | 87% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,921 psi | 89% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,544 psi | 88% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 49,226 psi | 89% | 2753 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 48,443 psi | 88% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 47,079 psi | 85% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,225 psi | 88% | 2759 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,364 psi | 73% | 2700 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,400 psi | 90% | 2726 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 48,022 psi | 87% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 47,195 psi | 86% | 2766 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,257 psi | 60% | 2641 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,123 psi | 86% | 2697 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% | 39,697 psi | 72% | 2510 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,543 psi | 84% | 2654 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 42,076 psi | 76% | 2533 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 33,547 psi | 61% | 2493 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 37,565 psi | 68% | 2510 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 29,095 psi | 53% | 2398 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 43,207 psi | 78% | 2618 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,912 psi | 67% | 2480 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 43,845 psi | 80% | 2687 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,237 psi | 82% | 2618 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 45,339 psi | 82% | 2595 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,305 psi | 71% | 2661 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,289 psi | 66% | 2500 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,001 psi | 71% | 2559 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 28,369 psi | 51% | 2362 fps | 95.1% |
| Alliant Reloder-17 | 45.4 gr | 80% | 31,401 psi | 57% | 2484 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 42,888 psi | 78% | 2684 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 25,947 psi | 47% | 2329 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 31,473 psi | 57% | 2549 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,279 psi | 77% | 2625 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 35,882 psi | 65% | 2507 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 39,436 psi | 72% | 2526 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,106 psi | 80% | 2651 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,825 psi | 67% | 2510 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 36,245 psi | 66% | 2552 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 88% | 42,482 psi | 77% | 2625 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,569 psi | 79% | 2628 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 25,846 psi | 47% | 2267 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,639 psi | 72% | 2608 fps | 99.9% |
| Hodgdon Superformance | 52.7 gr | 88% | 38,276 psi | 69% | 2615 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 48% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,916 psi | 76% | 2585 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 43,279 psi | 79% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,754 psi | 70% | 2510 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,249 psi | 75% | 2530 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 39,465 psi | 72% | 2552 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 38,740 psi | 70% | 2513 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 28,514 psi | 52% | 2362 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,885 psi | 72% | 2589 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 45,237 psi | 82% | 2618 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,380 psi | 77% | 2598 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,584 psi | 79% | 2556 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 38,638 psi | 70% | 2513 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 33,779 psi | 61% | 2415 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 36,114 psi | 66% | 2490 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 42,438 psi | 77% | 2572 fps | 100% |
| Norma 202 | <<locked>> | 80% | 42,583 psi | 77% | 2575 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,363 psi | 70% | 2549 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 44,628 psi | 81% | 2690 fps | 95.4% |
| Norma MRP | <<locked>> | 98% | 38,928 psi | 71% | 2690 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 28,123 psi | 51% | 2356 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 37,927 psi | 69% | 2566 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 33,330 psi | 60% | 2490 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 45,150 psi | 82% | 2635 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,599 psi | 81% | 2651 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,760 psi | 49% | 1529 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,275 psi | 68% | 2493 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,944 psi | 74% | 2664 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,446 psi | 61% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 29,095 psi | 53% | 2411 fps | 95.2% |
| ReloadSwiss RS 70 | 48.4 gr | 84% | 31,618 psi | 57% | 2474 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,456 psi | 84% | 2602 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,466 psi | 73% | 2526 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 33,866 psi | 61% | 2457 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 41,321 psi | 75% | 2661 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 39,436 psi | 72% | 2526 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 33,779 psi | 61% | 2415 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,380 psi | 77% | 2598 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,638 psi | 70% | 2513 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 36,114 psi | 66% | 2490 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,795 psi | 63% | 2507 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,453 psi | 79% | 2608 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,901 psi | 76% | 2595 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,932 psi | 80% | 2516 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,434 psi | 66% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 37,318 psi | 68% | 2454 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 43,468 psi | 79% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,047 psi | 78% | 2602 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 34,693 psi | 63% | 2461 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 25,135 psi | 46% | 2306 fps | 97.3% |
| Somchem S385 | <<locked>> | 96% | 39,189 psi | 71% | 2595 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 44,179 psi | 80% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,798 psi | 72% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,480 psi | 73% | 2513 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,011 psi | 60% | 2398 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 29,225 psi | 53% | 2349 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,368 psi | 82% | 2618 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 38,899 psi | 71% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 28,732 psi | 52% | 2356 fps | 95% |
| Vihtavuori N555 | <<locked>> | 86% | 25,860 psi | 47% | 2349 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,240 psi | 53% | 2329 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 44,976 psi | 82% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 36,245 psi | 66% | 2552 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 25,976 psi | 47% | 2405 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,176 psi | 75% | 2595 fps | 99.8% |
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 113 powders for 7.5 x 55 Swiss loaded with the .308 | 180gr | Norma Semi Soft Point. Alliant Reloder-17 delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,858 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 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 180.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7.5 x 55 Swiss with the .308 | 180gr | Norma Semi Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Bofors RP15 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.