Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 150gr | Hornady ECX bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 47,398 psi | 86% | 2835 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 48,762 psi | 88% | 2904 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 47,181 psi | 86% | 2894 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 46,905 psi | 85% | 2917 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 46,963 psi | 85% | 2933 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,540 psi | 77% | 2927 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 90% | 49,835 psi | 90% | 2979 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 47,921 psi | 87% | 2923 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 49,240 psi | 89% | 2933 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 48,457 psi | 88% | 2913 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 47,036 psi | 85% | 2982 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 49,110 psi | 89% | 3084 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 49,835 psi | 90% | 2992 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 47,543 psi | 86% | 2848 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 47,558 psi | 86% | 2963 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,395 psi | 79% | 2943 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 46,760 psi | 85% | 3045 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 49,443 psi | 90% | 2989 fps | 98.8% |
| Bofors RP3 | <<locked>> | 96% | 49,763 psi | 90% | 3005 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 48,385 psi | 88% | 2871 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 88% | 47,616 psi | 86% | 2959 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 49,139 psi | 89% | 3054 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 84% | 49,676 psi | 90% | 2933 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 47,326 psi | 86% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 48,022 psi | 87% | 2956 fps | 98% |
| Hodgdon H4895 | <<locked>> | 88% | 47,021 psi | 85% | 2936 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,566 psi | 72% | 2822 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 48,733 psi | 88% | 3018 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,069 psi | 62% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,443 psi | 88% | 2940 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 49,240 psi | 89% | 2979 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 47,152 psi | 86% | 2900 fps | 98.9% |
| IMR 4198 | <<locked>> | 82% | 48,631 psi | 88% | 2812 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,104 psi | 75% | 2877 fps | 97.3% |
| IMR 4895 | <<locked>> | 92% | 48,704 psi | 88% | 2995 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 88% | 49,240 psi | 89% | 2933 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 48,863 psi | 89% | 2913 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 48,399 psi | 88% | 2953 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,369 psi | 86% | 2854 fps | 99.2% |
| Lovex S062 | <<locked>> | 94% | 49,588 psi | 90% | 2953 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,617 psi | 88% | 2933 fps | 97.3% |
| Norma 201 | <<locked>> | 90% | 48,312 psi | 88% | 2920 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 48,820 psi | 89% | 2930 fps | 100% |
| Norma 203B | <<locked>> | 94% | 49,632 psi | 90% | 2999 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 43,381 psi | 79% | 2933 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 92% | 46,789 psi | 85% | 2969 fps | 99.1% |
| Ramshot TAC | <<locked>> | 88% | 49,763 psi | 90% | 2943 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 48,515 psi | 88% | 2959 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,297 psi | 86% | 2881 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,418 psi | 62% | 1850 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 49,110 psi | 89% | 2920 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 49,124 psi | 89% | 2940 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 46,789 psi | 85% | 3022 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 46,804 psi | 85% | 3058 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,888 psi | 78% | 2953 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 44,411 psi | 81% | 2972 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 88% | 49,574 psi | 90% | 2910 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 48,834 psi | 89% | 2917 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 49,327 psi | 90% | 2989 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,617 psi | 88% | 2933 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,399 psi | 88% | 2953 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 49,588 psi | 90% | 2953 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 48,820 psi | 89% | 2884 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 48,298 psi | 88% | 3005 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 48,486 psi | 88% | 2864 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,529 psi | 86% | 2910 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 48,385 psi | 88% | 2949 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 47,906 psi | 87% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 47,311 psi | 86% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 48,878 psi | 89% | 2884 fps | 95.9% |
| Somchem S321 | <<locked>> | 84% | 46,789 psi | 85% | 2913 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 49,705 psi | 90% | 2867 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 47,050 psi | 85% | 2907 fps | 99.1% |
| Somchem S355 | <<locked>> | 96% | 47,210 psi | 86% | 2940 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,508 psi | 70% | 2877 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 84% | 47,718 psi | 87% | 2795 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 47,935 psi | 87% | 2815 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 47,790 psi | 87% | 2890 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,226 psi | 89% | 2904 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,559 psi | 88% | 2923 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,658 psi | 83% | 2927 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 88% | 49,516 psi | 90% | 2930 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 47,485 psi | 86% | 2904 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,657 psi | 81% | 2936 fps | 97.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,224 psi | 86% | 2917 fps | 99.5% |
| Winchester 748 | <<locked>> | 88% | 48,501 psi | 88% | 2976 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 90% | 47,587 psi | 86% | 2953 fps | 99.6% |
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 2015 | <<locked>> | 80% | 39,291 psi | 71% | 2697 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,612 psi | 77% | 2802 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,270 psi | 57% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,927 psi | 69% | 2753 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 29,588 psi | 54% | 2579 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 34,243 psi | 62% | 2753 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 35,969 psi | 65% | 2703 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 32,764 psi | 59% | 2602 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,043 psi | 69% | 2720 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 80% | 36,651 psi | 67% | 2723 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,874 psi | 80% | 2923 fps | 99.2% |
| Alliant Power Pro 2000-MR | 46.8 gr | 82% | 34,867 psi | 63% | 2769 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,385 psi | 53% | 2562 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,672 psi | 81% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 31,952 psi | 58% | 2625 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 94% | 36,114 psi | 66% | 2776 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,328 psi | 57% | 2684 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,027 psi | 64% | 2697 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 28,543 psi | 52% | 2556 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,306 psi | 73% | 2720 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,911 psi | 65% | 2733 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,697 psi | 72% | 2867 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 80% | 43,569 psi | 79% | 2835 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,280 psi | 80% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 36,579 psi | 66% | 2730 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 36,230 psi | 66% | 2717 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,777 psi | 56% | 2608 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,285 psi | 59% | 2671 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,208 psi | 46% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,085 psi | 64% | 2671 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 35,056 psi | 64% | 2723 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,213 psi | 58% | 2582 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 45,672 psi | 83% | 2766 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 33,707 psi | 61% | 2710 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 32,677 psi | 59% | 2661 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 80% | 38,043 psi | 69% | 2720 fps | 98.6% |
| Lovex D073.5 | <<locked>> | 80% | 42,467 psi | 77% | 2805 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 33,953 psi | 62% | 2677 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 37,144 psi | 67% | 2651 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 31,720 psi | 58% | 2589 fps | 97.1% |
| Lovex S065 | <<locked>> | 94% | 40,176 psi | 73% | 2772 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 35,172 psi | 64% | 2657 fps | 98% |
| Norma 202 | <<locked>> | 80% | 35,230 psi | 64% | 2674 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 31,314 psi | 57% | 2615 fps | 95.5% |
| Norma URP | <<locked>> | 94% | 35,694 psi | 65% | 2766 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 33,286 psi | 60% | 2680 fps | 95.9% |
| Ramshot TAC | <<locked>> | 82% | 40,611 psi | 74% | 2769 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,057 psi | 67% | 2736 fps | 97.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,365 psi | 75% | 2766 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,367 psi | 46% | 1654 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,975 psi | 78% | 2815 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 42,830 psi | 78% | 2825 fps | 95.1% |
| ReloadSwiss RS 52 | 44.2 gr | 80% | 32,866 psi | 60% | 2717 fps | 95.3% |
| ReloadSwiss RS 60 | 44.9 gr | 80% | 27,340 psi | 50% | 2572 fps | 96.3% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 37,449 psi | 68% | 2835 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 38,928 psi | 71% | 2851 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 38,711 psi | 70% | 2713 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 33,431 psi | 61% | 2608 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 28,660 psi | 52% | 2552 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 40,176 psi | 73% | 2772 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,953 psi | 62% | 2677 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 31,720 psi | 58% | 2589 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,353 psi | 82% | 2825 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,372 psi | 59% | 2664 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,498 psi | 83% | 2818 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 38,363 psi | 70% | 2733 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,606 psi | 63% | 2667 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,072 psi | 67% | 2628 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,240 psi | 55% | 2487 fps | 99.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 45,513 psi | 83% | 2828 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 40,756 psi | 74% | 2802 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 36,477 psi | 66% | 2631 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 35,607 psi | 65% | 2680 fps | 96.8% |
| Somchem S355 | <<locked>> | 82% | 30,124 psi | 55% | 2572 fps | 95.6% |
| Somchem S365 | <<locked>> | 90% | 27,760 psi | 50% | 2589 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 42,221 psi | 77% | 2707 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,188 psi | 67% | 2628 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,227 psi | 58% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,402 psi | 61% | 2612 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 26,672 psi | 48% | 2454 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 92% | 35,302 psi | 64% | 2713 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 37,942 psi | 69% | 2717 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 32,068 psi | 58% | 2598 fps | 99% |
| Vihtavuori N550 | <<locked>> | 94% | 36,535 psi | 66% | 2769 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,618 psi | 57% | 2585 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,666 psi | 67% | 2753 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,794 psi | 61% | 2671 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 87 powders for 7.5 x 55 Swiss loaded with the .308 | 150gr | Hornady ECX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,084 fps. Accurate 4350 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 7.5 x 55 Swiss with the .308 | 150gr | Hornady ECX 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.