Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 170gr | Lapua Lock Base bullet and 93 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 Reloder-17 and Hodgdon Superformance.
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>> | 82% | 47,572 psi | 86% | 2654 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 48,660 psi | 88% | 2726 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 47,195 psi | 86% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 48,457 psi | 88% | 2710 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 48,515 psi | 88% | 2769 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 47,398 psi | 86% | 2841 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 49,719 psi | 90% | 2802 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 47,587 psi | 86% | 2749 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,921 psi | 89% | 2753 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 49,081 psi | 89% | 2730 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,791 psi | 89% | 2913 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 47,224 psi | 86% | 2776 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 47,790 psi | 87% | 2795 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,458 psi | 90% | 2897 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 47,137 psi | 86% | 2887 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,215 psi | 64% | 2644 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 38,827 psi | 70% | 2792 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,052 psi | 89% | 2812 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 47,181 psi | 86% | 2785 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 48,124 psi | 87% | 2753 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 48,022 psi | 87% | 2690 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 47,732 psi | 87% | 2785 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,965 psi | 89% | 2871 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 48,312 psi | 88% | 2795 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 96% | 47,268 psi | 86% | 2838 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 94% | 48,776 psi | 89% | 2802 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 84% | 47,050 psi | 85% | 2762 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,730 psi | 83% | 2776 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,907 psi | 89% | 2841 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 48,022 psi | 87% | 2867 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,070 psi | 64% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 48,399 psi | 88% | 2766 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 49,835 psi | 90% | 2795 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 47,224 psi | 86% | 2733 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,616 psi | 86% | 2710 fps | 97.1% |
| IMR 4350 | <<locked>> | 98% | 47,950 psi | 87% | 2776 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,876 psi | 85% | 2733 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,225 psi | 88% | 2835 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 48,979 psi | 89% | 2825 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 48,921 psi | 89% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 48,762 psi | 88% | 2772 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 46,934 psi | 85% | 2684 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 49,734 psi | 90% | 2779 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 49,124 psi | 89% | 2779 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 49,574 psi | 90% | 2808 fps | 97.8% |
| Norma 201 | <<locked>> | 86% | 48,675 psi | 88% | 2749 fps | 100% |
| Norma 202 | <<locked>> | 86% | 49,124 psi | 89% | 2753 fps | 100% |
| Norma 203B | <<locked>> | 88% | 47,021 psi | 85% | 2782 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 47,094 psi | 85% | 2835 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 88% | 46,963 psi | 85% | 2802 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,313 psi | 89% | 2881 fps | 98.5% |
| Ramshot TAC | <<locked>> | 84% | 49,211 psi | 89% | 2769 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,341 psi | 88% | 2785 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,748 psi | 90% | 2753 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,592 psi | 65% | 1752 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,907 psi | 89% | 2776 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 47,239 psi | 86% | 2851 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 47,137 psi | 86% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 46,963 psi | 85% | 2861 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 47,587 psi | 86% | 2887 fps | 99% |
| Rottweil R 901 | <<locked>> | 82% | 47,123 psi | 86% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 49,197 psi | 89% | 2746 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 47,050 psi | 85% | 2776 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 48,124 psi | 87% | 2753 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,124 psi | 89% | 2779 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,762 psi | 88% | 2772 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,734 psi | 90% | 2779 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 49,574 psi | 90% | 2808 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,457 psi | 88% | 2835 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 47,166 psi | 86% | 2740 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 48,095 psi | 87% | 2772 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 47,485 psi | 86% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 47,152 psi | 86% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,095 psi | 89% | 2726 fps | 97.4% |
| Somchem S321 | <<locked>> | 82% | 49,719 psi | 90% | 2785 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,719 psi | 90% | 2687 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 46,949 psi | 85% | 2740 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 47,950 psi | 87% | 2779 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,657 psi | 81% | 2831 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 47,674 psi | 87% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,414 psi | 88% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,472 psi | 90% | 2730 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 49,066 psi | 89% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 49,588 psi | 90% | 2828 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 49,168 psi | 89% | 2749 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 47,645 psi | 86% | 2730 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,544 psi | 88% | 2838 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,637 psi | 68% | 2717 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 46,934 psi | 85% | 2759 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 48,472 psi | 88% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 47,514 psi | 86% | 2841 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,386 psi | 57% | 2638 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 47,587 psi | 86% | 2779 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 2015 | <<locked>> | 80% | 44,802 psi | 81% | 2612 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,507 psi | 68% | 2546 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,961 psi | 80% | 2687 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 42,670 psi | 77% | 2608 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 35,447 psi | 64% | 2543 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 31,169 psi | 57% | 2516 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 41,249 psi | 75% | 2651 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 35,041 psi | 64% | 2503 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,250 psi | 78% | 2657 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 42,917 psi | 78% | 2641 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,188 psi | 67% | 2677 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,432 psi | 62% | 2530 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,086 psi | 67% | 2589 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 30,560 psi | 55% | 2484 fps | 95.2% |
| Alliant Reloder-17 | 45.1 gr | 80% | 29,718 psi | 54% | 2497 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 27,731 psi | 50% | 2438 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 33,895 psi | 62% | 2667 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,263 psi | 73% | 2654 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 33,881 psi | 61% | 2533 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 42,554 psi | 77% | 2651 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,107 psi | 82% | 2644 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,669 psi | 76% | 2680 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,832 psi | 83% | 2818 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 34,766 psi | 63% | 2530 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 38,885 psi | 71% | 2674 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 45,759 psi | 83% | 2749 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 41,553 psi | 75% | 2664 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 26,063 psi | 47% | 2329 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,362 psi | 68% | 2631 fps | 99.4% |
| Hodgdon Superformance | 54.8 gr | 92% | 41,655 psi | 76% | 2746 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 47% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,827 psi | 72% | 2612 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 40,727 psi | 74% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,738 psi | 67% | 2536 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 39,349 psi | 71% | 2552 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 42,235 psi | 77% | 2671 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 41,582 psi | 75% | 2635 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 30,545 psi | 55% | 2477 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 37,913 psi | 69% | 2618 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 43,250 psi | 78% | 2657 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 39,885 psi | 72% | 2628 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 41,582 psi | 75% | 2585 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 36,564 psi | 66% | 2543 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 34,098 psi | 62% | 2484 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 38,566 psi | 70% | 2605 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,509 psi | 74% | 2605 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 40,567 psi | 74% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,448 psi | 66% | 2579 fps | 98.5% |
| Norma URP | <<locked>> | 86% | 32,053 psi | 58% | 2523 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 35,824 psi | 65% | 2589 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 35,752 psi | 65% | 2612 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 42,960 psi | 78% | 2661 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,308 psi | 77% | 2680 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,746 psi | 85% | 2703 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,455 psi | 48% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 37,681 psi | 68% | 2566 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,421 psi | 70% | 2687 fps | 98.5% |
| ReloadSwiss RS 60 | 45.1 gr | 80% | 31,618 psi | 57% | 2562 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 31,285 psi | 57% | 2533 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 34,200 psi | 62% | 2598 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 44,222 psi | 80% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,377 psi | 70% | 2556 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 31,792 psi | 58% | 2474 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 42,554 psi | 77% | 2651 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 34,098 psi | 62% | 2484 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,885 psi | 72% | 2628 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 36,564 psi | 66% | 2543 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 38,566 psi | 70% | 2605 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,866 psi | 60% | 2523 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,147 psi | 75% | 2631 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,711 psi | 72% | 2621 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,829 psi | 76% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,534 psi | 63% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 40,306 psi | 73% | 2575 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 46,659 psi | 85% | 2736 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 41,597 psi | 75% | 2559 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,002 psi | 74% | 2635 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 32,924 psi | 60% | 2487 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 23,830 psi | 43% | 2316 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 42,018 psi | 76% | 2546 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,492 psi | 68% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,334 psi | 70% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,111 psi | 56% | 2421 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 31,430 psi | 57% | 2467 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 43,323 psi | 79% | 2654 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 36,854 psi | 67% | 2539 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 30,792 psi | 56% | 2474 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 29,254 psi | 53% | 2510 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 27,920 psi | 51% | 2346 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 42,482 psi | 77% | 2697 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 39,160 psi | 71% | 2680 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 27,731 psi | 50% | 2513 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,928 psi | 71% | 2625 fps | 99.3% |
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 110 powders for 7.5 x 55 Swiss loaded with the .308 | 170gr | Lapua Lock Base. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,913 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 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 170.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 Reloder-17, Hodgdon Superformance rank at the top here: for 7.5 x 55 Swiss with the .308 | 170gr | Lapua Lock Base they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.