Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 150gr | Lapua Mega 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>> | 86% | 47,152 psi | 86% | 2805 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 48,225 psi | 88% | 2867 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 46,847 psi | 85% | 2864 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 49,414 psi | 90% | 2930 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 49,734 psi | 90% | 2949 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,771 psi | 76% | 2887 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 90% | 49,139 psi | 89% | 2940 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 94% | 47,050 psi | 85% | 2877 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 48,457 psi | 88% | 2890 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 47,601 psi | 86% | 2881 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 49,588 psi | 90% | 2999 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 48,153 psi | 87% | 3035 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 48,704 psi | 88% | 2949 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 47,253 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 49,661 psi | 90% | 2969 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,888 psi | 78% | 2900 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,095 psi | 89% | 3058 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 49,472 psi | 90% | 2795 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 48,385 psi | 88% | 2943 fps | 98.4% |
| Bofors RP3 | <<locked>> | 96% | 48,776 psi | 89% | 2963 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 47,877 psi | 87% | 2831 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 46,818 psi | 85% | 2920 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 86% | 48,211 psi | 87% | 3009 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 84% | 48,892 psi | 89% | 2897 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 49,792 psi | 90% | 2923 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 47,398 psi | 86% | 2917 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 90% | 49,559 psi | 90% | 2953 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,914 psi | 71% | 2776 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 47,630 psi | 86% | 2972 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,374 psi | 62% | 1785 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 47,718 psi | 87% | 2900 fps | 99.3% |
| IMR 3031 | <<locked>> | 90% | 48,167 psi | 87% | 2940 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 49,472 psi | 90% | 2910 fps | 98.9% |
| IMR 4198 | <<locked>> | 82% | 47,964 psi | 87% | 2779 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,451 psi | 73% | 2835 fps | 96.8% |
| IMR 4895 | <<locked>> | 92% | 47,834 psi | 87% | 2953 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 88% | 48,457 psi | 88% | 2890 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 48,109 psi | 87% | 2877 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 47,572 psi | 86% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 49,792 psi | 90% | 2867 fps | 99.2% |
| Lovex S062 | <<locked>> | 94% | 48,733 psi | 88% | 2910 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,877 psi | 87% | 2890 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 48,095 psi | 87% | 2887 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 48,080 psi | 87% | 2894 fps | 100% |
| Norma 203B | <<locked>> | 94% | 48,820 psi | 89% | 2959 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 42,641 psi | 77% | 2887 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 94% | 49,052 psi | 89% | 2982 fps | 99.2% |
| Ramshot TAC | <<locked>> | 88% | 49,023 psi | 89% | 2900 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 47,718 psi | 87% | 2920 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 86% | 49,850 psi | 90% | 2894 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,534 psi | 63% | 1827 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 48,211 psi | 87% | 2881 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,312 psi | 88% | 2897 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 48,849 psi | 89% | 3031 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 49,313 psi | 89% | 3071 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,163 psi | 77% | 2907 fps | 96.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 43,787 psi | 79% | 2927 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 88% | 49,313 psi | 89% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 48,298 psi | 88% | 2881 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 48,341 psi | 88% | 2946 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,877 psi | 87% | 2890 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 47,572 psi | 86% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 48,733 psi | 88% | 2910 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 48,080 psi | 87% | 2844 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 47,384 psi | 86% | 2959 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 47,732 psi | 87% | 2828 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 46,615 psi | 85% | 2867 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 47,572 psi | 86% | 2907 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 47,355 psi | 86% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 49,676 psi | 90% | 2828 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 49,414 psi | 90% | 2930 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 49,400 psi | 90% | 2835 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 49,501 psi | 90% | 2920 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 49,458 psi | 90% | 2953 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,739 psi | 68% | 2831 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 84% | 47,224 psi | 86% | 2762 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 47,253 psi | 86% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 46,949 psi | 85% | 2851 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 48,617 psi | 88% | 2871 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 47,558 psi | 86% | 2881 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,875 psi | 81% | 2884 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 88% | 48,820 psi | 89% | 2890 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 92% | 46,760 psi | 85% | 2867 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,700 psi | 79% | 2890 fps | 97.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,311 psi | 84% | 2874 fps | 99.2% |
| Winchester 748 | <<locked>> | 88% | 47,761 psi | 87% | 2940 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 90% | 46,833 psi | 85% | 2910 fps | 99.3% |
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% | 38,957 psi | 71% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,322 psi | 77% | 2769 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 31,473 psi | 57% | 2575 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,608 psi | 68% | 2720 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 29,762 psi | 54% | 2556 fps | 98.8% |
| Accurate 4350 | <<locked>> | 96% | 36,434 psi | 66% | 2776 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 35,781 psi | 65% | 2671 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 34,621 psi | 63% | 2621 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,739 psi | 68% | 2687 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 80% | 36,361 psi | 66% | 2694 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,323 psi | 79% | 2884 fps | 98.9% |
| Alliant Power Pro 2000-MR | 46.1 gr | 84% | 36,854 psi | 67% | 2789 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,240 psi | 53% | 2533 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,338 psi | 80% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 33,852 psi | 61% | 2648 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,043 psi | 69% | 2792 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,169 psi | 57% | 2648 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,166 psi | 84% | 2743 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,144 psi | 67% | 2720 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 28,558 psi | 52% | 2530 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,987 psi | 73% | 2687 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,592 psi | 65% | 2700 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,073 psi | 71% | 2825 fps | 97% |
| Hodgdon H322 | <<locked>> | 80% | 43,062 psi | 78% | 2799 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,468 psi | 79% | 2818 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 38,783 psi | 70% | 2749 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 35,969 psi | 65% | 2684 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,343 psi | 59% | 2621 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,039 psi | 58% | 2635 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,440 psi | 46% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,824 psi | 63% | 2638 fps | 96.8% |
| IMR 3031 | <<locked>> | 80% | 34,563 psi | 63% | 2690 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,069 psi | 62% | 2602 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 45,266 psi | 82% | 2736 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 35,447 psi | 64% | 2726 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 32,474 psi | 59% | 2628 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 37,739 psi | 68% | 2687 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 41,974 psi | 76% | 2769 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 33,895 psi | 62% | 2648 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 36,840 psi | 67% | 2615 fps | 96.8% |
| Lovex S062 | <<locked>> | 80% | 31,575 psi | 57% | 2559 fps | 96.7% |
| Lovex S065 | <<locked>> | 96% | 42,380 psi | 77% | 2789 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 35,114 psi | 64% | 2628 fps | 97.7% |
| Norma 202 | <<locked>> | 80% | 34,940 psi | 63% | 2644 fps | 99.4% |
| Norma 203B | <<locked>> | 80% | 31,227 psi | 57% | 2585 fps | 95.1% |
| Norma URP | <<locked>> | 96% | 37,449 psi | 68% | 2776 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 82% | 32,938 psi | 60% | 2641 fps | 95.3% |
| Ramshot TAC | <<locked>> | 82% | 40,147 psi | 73% | 2730 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,506 psi | 66% | 2697 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,060 psi | 75% | 2733 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,672 psi | 47% | 1637 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,395 psi | 77% | 2779 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 45,165 psi | 82% | 2838 fps | 95.3% |
| ReloadSwiss RS 52 | 43.6 gr | 82% | 34,896 psi | 63% | 2740 fps | 95.7% |
| ReloadSwiss RS 60 | 43.2 gr | 80% | 27,311 psi | 50% | 2536 fps | 95.7% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 36,811 psi | 67% | 2792 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 40,988 psi | 74% | 2864 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,638 psi | 70% | 2684 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 33,373 psi | 61% | 2575 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 84% | 30,618 psi | 56% | 2579 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 42,380 psi | 77% | 2789 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,895 psi | 62% | 2648 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 31,575 psi | 57% | 2559 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,889 psi | 81% | 2789 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,242 psi | 59% | 2631 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,020 psi | 82% | 2785 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 38,000 psi | 69% | 2697 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,476 psi | 63% | 2638 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,941 psi | 67% | 2598 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,153 psi | 55% | 2461 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 40,205 psi | 73% | 2762 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 36,289 psi | 66% | 2602 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 35,099 psi | 64% | 2644 fps | 96.2% |
| Somchem S355 | <<locked>> | 82% | 29,863 psi | 54% | 2539 fps | 95.1% |
| Somchem S365 | <<locked>> | 90% | 27,688 psi | 50% | 2556 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 41,945 psi | 76% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,956 psi | 67% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,082 psi | 58% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,185 psi | 60% | 2582 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 26,658 psi | 48% | 2428 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 94% | 37,043 psi | 67% | 2723 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 37,681 psi | 68% | 2680 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,792 psi | 58% | 2566 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 96% | 38,450 psi | 70% | 2782 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,415 psi | 57% | 2549 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 36,201 psi | 66% | 2717 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,533 psi | 61% | 2638 fps | 96.6% |
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 | Lapua Mega. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,785 fps to 3,071 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 1:11.5 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 | 150gr | Lapua Mega 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.