Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 155.8gr | Peregrine Glider GRM bullet and 88 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.
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 2015 | <<locked>> | 88% | 49,414 psi | 90% | 2785 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 47,732 psi | 87% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 49,052 psi | 89% | 2844 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 48,892 psi | 89% | 2867 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 48,936 psi | 89% | 2887 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,336 psi | 75% | 2831 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 90% | 48,675 psi | 88% | 2881 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 96% | 49,661 psi | 90% | 2871 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 88% | 48,298 psi | 88% | 2838 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 88% | 47,079 psi | 85% | 2818 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 49,298 psi | 89% | 2940 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 47,964 psi | 87% | 2979 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 48,646 psi | 88% | 2897 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 49,545 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 49,313 psi | 89% | 2913 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,612 psi | 77% | 2848 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,979 psi | 89% | 3005 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 49,095 psi | 89% | 2736 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 48,167 psi | 87% | 2890 fps | 98.6% |
| Bofors RP3 | <<locked>> | 96% | 48,312 psi | 88% | 2904 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 47,587 psi | 86% | 2776 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 49,734 psi | 90% | 2917 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 47,863 psi | 87% | 2949 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 84% | 48,689 psi | 88% | 2838 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 49,690 psi | 90% | 2867 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 46,949 psi | 85% | 2861 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 90% | 49,066 psi | 89% | 2890 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,493 psi | 70% | 2723 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 47,340 psi | 86% | 2917 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 62% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 47,616 psi | 86% | 2848 fps | 99.5% |
| IMR 3031 | <<locked>> | 90% | 48,022 psi | 87% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 49,052 psi | 89% | 2854 fps | 99.1% |
| IMR 4198 | <<locked>> | 82% | 47,587 psi | 86% | 2717 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 49,182 psi | 89% | 2848 fps | 95.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,074 psi | 73% | 2782 fps | 97.1% |
| IMR 4895 | <<locked>> | 92% | 47,384 psi | 86% | 2894 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 88% | 48,298 psi | 88% | 2838 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 47,703 psi | 87% | 2818 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 47,007 psi | 85% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 49,603 psi | 90% | 2812 fps | 99.4% |
| Lovex S062 | <<locked>> | 94% | 48,211 psi | 87% | 2851 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,442 psi | 86% | 2835 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 47,384 psi | 86% | 2825 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 47,848 psi | 87% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 94% | 48,399 psi | 88% | 2900 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 42,061 psi | 76% | 2831 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 94% | 48,863 psi | 89% | 2927 fps | 99.3% |
| Ramshot TAC | <<locked>> | 88% | 48,704 psi | 88% | 2844 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 47,659 psi | 86% | 2867 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 49,443 psi | 90% | 2838 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,156 psi | 62% | 1781 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 47,993 psi | 87% | 2825 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,964 psi | 87% | 2841 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 48,544 psi | 88% | 2972 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 48,907 psi | 89% | 3012 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 41,626 psi | 76% | 2851 fps | 97% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 43,410 psi | 79% | 2874 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 88% | 48,573 psi | 88% | 2815 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 47,630 psi | 86% | 2818 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 98% | 47,877 psi | 87% | 2887 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,442 psi | 86% | 2835 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 47,007 psi | 85% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 48,211 psi | 87% | 2851 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 47,819 psi | 87% | 2789 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 46,876 psi | 85% | 2900 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 47,645 psi | 86% | 2772 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 49,487 psi | 90% | 2864 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 47,181 psi | 86% | 2848 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 49,806 psi | 90% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 49,255 psi | 89% | 2769 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 48,979 psi | 89% | 2871 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 48,776 psi | 89% | 2776 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 49,240 psi | 89% | 2864 fps | 99.3% |
| Somchem S355 | <<locked>> | 98% | 49,066 psi | 89% | 2894 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,318 psi | 68% | 2776 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 86% | 49,864 psi | 90% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 49,734 psi | 90% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 49,559 psi | 90% | 2835 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 48,153 psi | 87% | 2812 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 47,210 psi | 86% | 2825 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,643 psi | 81% | 2831 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 88% | 48,602 psi | 88% | 2835 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 49,661 psi | 90% | 2858 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,497 psi | 79% | 2838 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,948 psi | 83% | 2818 fps | 99.4% |
| Winchester 748 | <<locked>> | 88% | 47,442 psi | 86% | 2881 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 49,864 psi | 90% | 2910 fps | 99.7% |
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% | 38,493 psi | 70% | 2608 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 41,684 psi | 76% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 30,342 psi | 55% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 36,825 psi | 67% | 2657 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 28,732 psi | 52% | 2490 fps | 98.8% |
| Accurate 4350 | <<locked>> | 96% | 35,868 psi | 65% | 2720 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,230 psi | 64% | 2612 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 34,200 psi | 62% | 2569 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,289 psi | 68% | 2631 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 35,810 psi | 65% | 2631 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,917 psi | 78% | 2825 fps | 99.1% |
| Alliant Power Pro 2000-MR | 44.4 gr | 82% | 34,127 psi | 62% | 2674 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 28,834 psi | 52% | 2480 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,729 psi | 79% | 2707 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 33,344 psi | 61% | 2592 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 35,346 psi | 64% | 2680 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 86% | 30,603 psi | 56% | 2592 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,021 psi | 84% | 2687 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 34,229 psi | 62% | 2605 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 27,862 psi | 51% | 2474 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,523 psi | 72% | 2631 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,143 psi | 64% | 2644 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,783 psi | 70% | 2772 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 80% | 42,670 psi | 77% | 2740 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,192 psi | 78% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 35,737 psi | 65% | 2638 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 35,462 psi | 64% | 2625 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,008 psi | 54% | 2516 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,575 psi | 57% | 2582 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,222 psi | 46% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,360 psi | 62% | 2582 fps | 97% |
| IMR 3031 | <<locked>> | 80% | 34,258 psi | 62% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 33,547 psi | 61% | 2546 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 44,817 psi | 81% | 2674 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 46,238 psi | 84% | 2799 fps | 95.1% |
| IMR 4831 | <<locked>> | 96% | 34,940 psi | 63% | 2671 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 31,937 psi | 58% | 2572 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 37,289 psi | 68% | 2631 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 80% | 41,394 psi | 75% | 2710 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 33,272 psi | 60% | 2592 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 36,318 psi | 66% | 2559 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 30,908 psi | 56% | 2500 fps | 96.9% |
| Lovex S065 | <<locked>> | 94% | 39,320 psi | 71% | 2684 fps | 95% |
| Norma 201 | <<locked>> | 80% | 34,360 psi | 62% | 2569 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 34,577 psi | 63% | 2589 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 30,603 psi | 56% | 2530 fps | 95.3% |
| Norma URP | <<locked>> | 94% | 34,722 psi | 63% | 2671 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 32,532 psi | 59% | 2592 fps | 95.6% |
| Ramshot TAC | <<locked>> | 82% | 39,871 psi | 72% | 2677 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,114 psi | 66% | 2644 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,654 psi | 74% | 2677 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,425 psi | 46% | 1598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,989 psi | 76% | 2720 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 44,773 psi | 81% | 2785 fps | 95.6% |
| ReloadSwiss RS 52 | 42 gr | 80% | 32,242 psi | 59% | 2628 fps | 95.2% |
| ReloadSwiss RS 60 | 42.6 gr | 80% | 26,789 psi | 49% | 2484 fps | 96% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 36,390 psi | 66% | 2740 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 40,509 psi | 74% | 2812 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 37,927 psi | 69% | 2625 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 32,793 psi | 60% | 2523 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 27,963 psi | 51% | 2467 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 39,320 psi | 71% | 2684 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,272 psi | 60% | 2592 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 30,908 psi | 56% | 2500 fps | 96.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,570 psi | 81% | 2733 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 31,807 psi | 58% | 2579 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,614 psi | 81% | 2726 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 37,565 psi | 68% | 2644 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,026 psi | 62% | 2582 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,318 psi | 66% | 2539 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,588 psi | 54% | 2405 fps | 99.3% |
| Somchem S321 | <<locked>> | 80% | 39,784 psi | 72% | 2707 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 35,665 psi | 65% | 2543 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 34,722 psi | 63% | 2592 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 29,225 psi | 53% | 2480 fps | 95.3% |
| Somchem S365 | <<locked>> | 90% | 27,195 psi | 49% | 2503 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 41,394 psi | 75% | 2615 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,405 psi | 66% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,430 psi | 57% | 2516 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 32,648 psi | 59% | 2526 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 26,005 psi | 47% | 2372 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 36,564 psi | 66% | 2671 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 37,202 psi | 68% | 2625 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 31,241 psi | 57% | 2510 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 35,694 psi | 65% | 2677 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 30,908 psi | 56% | 2497 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 35,839 psi | 65% | 2664 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,851 psi | 60% | 2579 fps | 96.8% |
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 105 powders for 7.5 x 55 Swiss loaded with the .308 | 155.8gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,742 fps to 3,012 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 54–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.308" calls for a 1:10.5 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 | 155.8gr | Peregrine Glider GRM 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.