Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 150gr | Norma ECO Strike bullet and 87 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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 49,327 psi | 90% | 2854 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 47,485 psi | 86% | 2871 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 48,617 psi | 88% | 2904 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 48,747 psi | 88% | 2933 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 48,747 psi | 88% | 2949 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 40,930 psi | 74% | 2884 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 90% | 48,370 psi | 88% | 2940 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 96% | 49,516 psi | 90% | 2933 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 88% | 48,095 psi | 87% | 2900 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 46,920 psi | 85% | 2884 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 48,892 psi | 89% | 3002 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 47,616 psi | 86% | 3038 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 48,138 psi | 87% | 2953 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 49,327 psi | 90% | 2864 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 49,110 psi | 89% | 2976 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,337 psi | 77% | 2904 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,733 psi | 88% | 3064 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 48,907 psi | 89% | 2799 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 47,877 psi | 87% | 2946 fps | 98.4% |
| Bofors RP3 | <<locked>> | 96% | 48,037 psi | 87% | 2966 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 47,500 psi | 86% | 2841 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 49,472 psi | 90% | 2979 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 47,688 psi | 87% | 3012 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 84% | 48,602 psi | 88% | 2907 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 49,371 psi | 90% | 2930 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 49,763 psi | 90% | 2972 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 90% | 48,733 psi | 88% | 2953 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,261 psi | 69% | 2779 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 47,079 psi | 85% | 2979 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,127 psi | 62% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 47,340 psi | 86% | 2907 fps | 99.4% |
| IMR 3031 | <<locked>> | 90% | 47,471 psi | 86% | 2940 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 49,023 psi | 89% | 2917 fps | 99% |
| IMR 4198 | <<locked>> | 82% | 47,355 psi | 86% | 2782 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 39,726 psi | 72% | 2835 fps | 96.8% |
| IMR 4895 | <<locked>> | 92% | 47,282 psi | 86% | 2959 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 88% | 48,095 psi | 87% | 2900 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 47,384 psi | 86% | 2877 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 46,891 psi | 85% | 2917 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 49,400 psi | 90% | 2874 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 48,124 psi | 87% | 2917 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,181 psi | 86% | 2894 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 47,137 psi | 86% | 2884 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 47,587 psi | 86% | 2900 fps | 100% |
| Norma 203B | <<locked>> | 94% | 48,225 psi | 88% | 2963 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 42,032 psi | 76% | 2890 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 94% | 48,486 psi | 88% | 2986 fps | 99.2% |
| Ramshot TAC | <<locked>> | 88% | 48,544 psi | 88% | 2907 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 47,210 psi | 86% | 2927 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 86% | 49,385 psi | 90% | 2900 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,185 psi | 62% | 1831 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 47,877 psi | 87% | 2887 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,659 psi | 86% | 2900 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 48,327 psi | 88% | 3035 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 48,675 psi | 88% | 3074 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 41,365 psi | 75% | 2907 fps | 96.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 43,091 psi | 78% | 2927 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 88% | 48,254 psi | 88% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 47,659 psi | 86% | 2884 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 47,587 psi | 86% | 2946 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,181 psi | 86% | 2894 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 46,891 psi | 85% | 2917 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 48,124 psi | 87% | 2917 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 47,369 psi | 86% | 2844 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 46,818 psi | 85% | 2966 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 47,253 psi | 86% | 2835 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 49,211 psi | 89% | 2927 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 47,065 psi | 85% | 2910 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 49,705 psi | 90% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 48,950 psi | 89% | 2831 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 48,892 psi | 89% | 2936 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 48,559 psi | 88% | 2835 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 48,979 psi | 89% | 2927 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 48,820 psi | 89% | 2956 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,275 psi | 68% | 2835 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 86% | 49,603 psi | 90% | 2812 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 49,647 psi | 90% | 2828 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 49,545 psi | 90% | 2904 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 48,080 psi | 87% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 46,934 psi | 85% | 2884 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,251 psi | 80% | 2887 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 88% | 48,327 psi | 88% | 2897 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 49,414 psi | 90% | 2920 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,323 psi | 79% | 2897 fps | 97.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,876 psi | 83% | 2877 fps | 99.3% |
| Winchester 748 | <<locked>> | 88% | 47,007 psi | 85% | 2940 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 49,574 psi | 90% | 2969 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% | 38,189 psi | 69% | 2667 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 41,350 psi | 75% | 2766 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 30,197 psi | 55% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 36,724 psi | 67% | 2717 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 28,601 psi | 52% | 2543 fps | 98.6% |
| Accurate 4350 | <<locked>> | 96% | 35,621 psi | 65% | 2772 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 35,070 psi | 64% | 2667 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 33,982 psi | 62% | 2621 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,101 psi | 67% | 2687 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 35,723 psi | 65% | 2694 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,685 psi | 77% | 2887 fps | 98.9% |
| Alliant Power Pro 2000-MR | 46.7 gr | 84% | 36,347 psi | 66% | 2792 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 28,500 psi | 52% | 2530 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,714 psi | 79% | 2776 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 33,315 psi | 60% | 2651 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 37,507 psi | 68% | 2795 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 88% | 32,489 psi | 59% | 2703 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,861 psi | 83% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 36,463 psi | 66% | 2717 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 27,673 psi | 50% | 2523 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,392 psi | 71% | 2690 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,809 psi | 63% | 2697 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,595 psi | 70% | 2831 fps | 97% |
| Hodgdon H322 | <<locked>> | 80% | 42,453 psi | 77% | 2802 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,076 psi | 78% | 2825 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 38,116 psi | 69% | 2749 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 35,259 psi | 64% | 2680 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 31,720 psi | 58% | 2618 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,517 psi | 57% | 2638 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,251 psi | 46% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,200 psi | 62% | 2638 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 33,924 psi | 62% | 2690 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 33,402 psi | 61% | 2602 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 44,657 psi | 81% | 2740 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 34,766 psi | 63% | 2723 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 31,734 psi | 58% | 2625 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 37,101 psi | 67% | 2687 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 41,278 psi | 75% | 2772 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 32,996 psi | 60% | 2644 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 36,260 psi | 66% | 2618 fps | 96.8% |
| Lovex S062 | <<locked>> | 80% | 30,792 psi | 56% | 2556 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 41,713 psi | 76% | 2792 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 34,214 psi | 62% | 2625 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 34,243 psi | 62% | 2641 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 32,663 psi | 59% | 2638 fps | 95.8% |
| Norma URP | <<locked>> | 96% | 36,840 psi | 67% | 2779 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 82% | 32,184 psi | 58% | 2638 fps | 95.1% |
| Ramshot TAC | <<locked>> | 82% | 39,682 psi | 72% | 2733 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,013 psi | 65% | 2700 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,335 psi | 73% | 2733 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,193 psi | 46% | 1637 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,742 psi | 76% | 2779 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 44,570 psi | 81% | 2844 fps | 95.3% |
| ReloadSwiss RS 52 | 44.2 gr | 82% | 34,345 psi | 62% | 2743 fps | 95.7% |
| ReloadSwiss RS 60 | 43.8 gr | 80% | 26,745 psi | 49% | 2536 fps | 95.6% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 36,274 psi | 66% | 2792 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 40,277 psi | 73% | 2864 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 37,637 psi | 68% | 2677 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 32,518 psi | 59% | 2572 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 29,704 psi | 54% | 2572 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 41,713 psi | 76% | 2792 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,996 psi | 60% | 2644 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 30,792 psi | 56% | 2556 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,179 psi | 80% | 2789 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 31,502 psi | 57% | 2628 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,266 psi | 80% | 2785 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 37,318 psi | 68% | 2697 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,794 psi | 61% | 2638 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,085 psi | 65% | 2595 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,370 psi | 53% | 2454 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 39,653 psi | 72% | 2769 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 35,534 psi | 64% | 2598 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 34,606 psi | 63% | 2648 fps | 96.2% |
| Somchem S355 | <<locked>> | 84% | 31,009 psi | 56% | 2585 fps | 95.7% |
| Somchem S365 | <<locked>> | 90% | 27,021 psi | 49% | 2552 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 41,089 psi | 75% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,158 psi | 66% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,169 psi | 57% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 32,489 psi | 59% | 2579 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 25,889 psi | 47% | 2421 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 94% | 36,434 psi | 66% | 2723 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 36,999 psi | 67% | 2684 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,038 psi | 56% | 2562 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 96% | 37,753 psi | 69% | 2782 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 30,806 psi | 56% | 2549 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 35,766 psi | 65% | 2723 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,793 psi | 60% | 2635 fps | 96.5% |
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 105 powders for 7.5 x 55 Swiss loaded with the .308 | 150gr | Norma ECO Strike. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,074 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,074 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:12.0 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 7.5 x 55 Swiss with the .308 | 150gr | Norma ECO Strike they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.