Load Specifications
Load data in caliber 7.7 x 58 mm Arisaka with .312 | 150gr | Hornady SP 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, Bofors RP3 and Alliant Reloder-17.
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: 25.9"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 40,654 psi | 90% | 2644 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 39,552 psi | 88% | 2697 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 39,972 psi | 89% | 2690 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 39,247 psi | 87% | 2687 fps | 98.8% |
| Accurate 4064 | <<locked>> | 88% | 39,740 psi | 88% | 2730 fps | 99.7% |
| Accurate 4064 | <<locked>> | 90% | 39,929 psi | 89% | 2720 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 39,059 psi | 87% | 2694 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 84% | 39,871 psi | 89% | 2690 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 88% | 40,277 psi | 90% | 2697 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 39,392 psi | 88% | 2654 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 82% | 40,132 psi | 89% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 40,422 psi | 90% | 2717 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 39,073 psi | 87% | 2717 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 39,494 psi | 88% | 2707 fps | 97.1% |
| Alliant Reloder-15 | <<locked>> | 86% | 39,755 psi | 88% | 2730 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 39,015 psi | 87% | 2792 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 39,508 psi | 88% | 2779 fps | 96.2% |
| Bofors RP3 | <<locked>> | 88% | 38,435 psi | 85% | 2717 fps | 97.3% |
| Bofors RP3 | <<locked>> | 90% | 38,870 psi | 86% | 2707 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 82% | 39,189 psi | 87% | 2723 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 84% | 39,885 psi | 89% | 2720 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 82% | 39,320 psi | 87% | 2707 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 40,089 psi | 89% | 2703 fps | 96.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,205 psi | 89% | 2753 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 40,190 psi | 89% | 2776 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 38,290 psi | 85% | 2713 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,287 psi | 76% | 1785 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 76% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,509 psi | 90% | 2713 fps | 97.2% |
| Hodgdon VARGET | <<locked>> | 84% | 38,624 psi | 86% | 2654 fps | 96.3% |
| IMR 3031 | <<locked>> | 82% | 38,159 psi | 85% | 2717 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 38,653 psi | 86% | 2713 fps | 99.9% |
| IMR 4064 | <<locked>> | 86% | 39,682 psi | 88% | 2680 fps | 95.9% |
| IMR 4895 | <<locked>> | 86% | 40,640 psi | 90% | 2762 fps | 96.9% |
| IMR 4895 | <<locked>> | 86% | 38,464 psi | 86% | 2697 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 82% | 39,392 psi | 88% | 2654 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 84% | 40,045 psi | 89% | 2730 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 86% | 40,379 psi | 90% | 2720 fps | 99% |
| Lovex S060 | <<locked>> | 82% | 40,016 psi | 89% | 2641 fps | 96.5% |
| Lovex S062 | <<locked>> | 86% | 39,204 psi | 87% | 2687 fps | 97.7% |
| Lovex S062 | <<locked>> | 88% | 39,523 psi | 88% | 2674 fps | 97.5% |
| Norma 201 | <<locked>> | 82% | 38,508 psi | 86% | 2654 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 38,957 psi | 87% | 2648 fps | 97.3% |
| Norma 202 | <<locked>> | 82% | 38,377 psi | 85% | 2671 fps | 99.3% |
| Norma 202 | <<locked>> | 84% | 38,812 psi | 86% | 2661 fps | 99.2% |
| Norma 203B | <<locked>> | 86% | 39,015 psi | 87% | 2717 fps | 96.3% |
| Norma 203B | <<locked>> | 88% | 39,465 psi | 88% | 2707 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 86% | 38,609 psi | 86% | 2723 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 40,263 psi | 90% | 2726 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,635 psi | 77% | 1827 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,316 psi | 76% | 1801 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 38,914 psi | 87% | 2808 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 39,378 psi | 88% | 2792 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 40,263 psi | 90% | 2654 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 84% | 38,856 psi | 86% | 2654 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 86% | 39,349 psi | 88% | 2644 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 90% | 38,551 psi | 86% | 2710 fps | 97% |
| Rottweil R 903 | <<locked>> | 92% | 38,783 psi | 86% | 2697 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 40,045 psi | 89% | 2730 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 40,379 psi | 90% | 2720 fps | 99% |
| Shooters World Precision | <<locked>> | 86% | 39,204 psi | 87% | 2687 fps | 97.7% |
| Shooters World Precision | <<locked>> | 88% | 39,523 psi | 88% | 2674 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 40,205 psi | 89% | 2766 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 40,567 psi | 90% | 2753 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 40,234 psi | 89% | 2717 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 40,306 psi | 90% | 2625 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 38,406 psi | 85% | 2569 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 39,639 psi | 88% | 2625 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 40,350 psi | 90% | 2621 fps | 99.8% |
| Somchem S335 | <<locked>> | 82% | 39,697 psi | 88% | 2628 fps | 99.8% |
| Somchem S335 | <<locked>> | 84% | 40,234 psi | 89% | 2621 fps | 99.7% |
| Somchem S341 | <<locked>> | 82% | 38,711 psi | 86% | 2671 fps | 96% |
| Somchem S355 | <<locked>> | 90% | 39,610 psi | 88% | 2717 fps | 97% |
| Somchem S355 | <<locked>> | 92% | 40,118 psi | 89% | 2707 fps | 96.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,001 psi | 87% | 2802 fps | 98.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,854 psi | 82% | 2726 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 82% | 40,306 psi | 90% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 38,348 psi | 85% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 40,118 psi | 89% | 2700 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 40,553 psi | 90% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 38,783 psi | 86% | 2657 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 86% | 39,102 psi | 87% | 2644 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 92% | 40,466 psi | 90% | 2707 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 92% | 38,290 psi | 85% | 2644 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 82% | 39,320 psi | 87% | 2651 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 86% | 39,668 psi | 88% | 2690 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 88% | 40,205 psi | 89% | 2684 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 39,262 psi | 87% | 2684 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 39,914 psi | 89% | 2674 fps | 96.4% |
| Winchester 748 | <<locked>> | 82% | 40,016 psi | 89% | 2749 fps | 98.6% |
| Winchester 748 | <<locked>> | 84% | 40,683 psi | 90% | 2743 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 39,349 psi | 88% | 2717 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 86% | 39,856 psi | 89% | 2710 fps | 96.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.9"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,189 psi | 85% | 2595 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,590 psi | 72% | 2549 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 30,632 psi | 68% | 2487 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 36,651 psi | 82% | 2631 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 30,835 psi | 69% | 2526 fps | 98% |
| Accurate 4064 | <<locked>> | 80% | 28,950 psi | 64% | 2461 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 80% | 36,666 psi | 82% | 2638 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 82% | 37,318 psi | 83% | 2635 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 86% | 37,811 psi | 84% | 2644 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,883 psi | 82% | 2598 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 80% | 37,449 psi | 83% | 2674 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 35,259 psi | 78% | 2615 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 32,213 psi | 72% | 2556 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 34,722 psi | 77% | 2602 fps | 95.6% |
| Alliant Reloder-15 | <<locked>> | 84% | 37,318 psi | 83% | 2674 fps | 95.1% |
| Alliant Reloder-17 | 51.4 gr | 90% | 36,477 psi | 81% | 2730 fps | 95.6% |
| Alliant Reloder-17 | 51.4 gr | 92% | 36,883 psi | 82% | 2717 fps | 95.2% |
| Bofors RP3 | 45.3 gr | 84% | 33,721 psi | 75% | 2608 fps | 95.8% |
| Bofors RP3 | 46.3 gr | 86% | 33,881 psi | 75% | 2595 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,593 psi | 81% | 2667 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,722 psi | 77% | 2605 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 80% | 36,927 psi | 82% | 2651 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 80% | 35,128 psi | 78% | 2589 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 35,404 psi | 79% | 2641 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,982 psi | 73% | 2605 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,605 psi | 75% | 2598 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,570 psi | 57% | 1598 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,367 psi | 56% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,694 psi | 79% | 2605 fps | 95.7% |
| Hodgdon VARGET | <<locked>> | 82% | 36,361 psi | 81% | 2602 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 35,607 psi | 79% | 2661 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 33,779 psi | 75% | 2605 fps | 99.5% |
| IMR 4064 | <<locked>> | 84% | 37,246 psi | 83% | 2625 fps | 95.1% |
| IMR 4895 | <<locked>> | 82% | 35,592 psi | 79% | 2648 fps | 95.2% |
| IMR 4895 | <<locked>> | 84% | 36,230 psi | 81% | 2644 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 36,883 psi | 82% | 2598 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 80% | 34,896 psi | 78% | 2618 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,880 psi | 73% | 2556 fps | 97.3% |
| Lovex S060 | <<locked>> | 80% | 37,623 psi | 84% | 2589 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 32,416 psi | 72% | 2526 fps | 95.6% |
| Lovex S062 | <<locked>> | 82% | 32,837 psi | 73% | 2520 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 36,158 psi | 80% | 2602 fps | 96.9% |
| Norma 201 | <<locked>> | 80% | 34,360 psi | 76% | 2539 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 36,013 psi | 80% | 2618 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 34,127 psi | 76% | 2559 fps | 98.2% |
| Norma 203B | <<locked>> | 84% | 36,637 psi | 81% | 2664 fps | 95.6% |
| Norma 203B | <<locked>> | 86% | 36,912 psi | 82% | 2651 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 36,143 psi | 80% | 2667 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,623 psi | 84% | 2667 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 57% | 1637 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,324 psi | 56% | 1608 fps | 100% |
| ReloadSwiss RS 60 | 45.8 gr | 82% | 29,979 psi | 67% | 2559 fps | 95.3% |
| ReloadSwiss RS 60 | 47 gr | 84% | 30,487 psi | 68% | 2549 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 37,942 psi | 84% | 2605 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 34,229 psi | 76% | 2546 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 32,677 psi | 73% | 2490 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 86% | 33,837 psi | 75% | 2602 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 34,026 psi | 76% | 2589 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,896 psi | 78% | 2618 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,880 psi | 73% | 2556 fps | 97.3% |
| Shooters World Precision | <<locked>> | 80% | 32,416 psi | 72% | 2526 fps | 95.6% |
| Shooters World Precision | <<locked>> | 82% | 32,837 psi | 73% | 2520 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 37,608 psi | 84% | 2710 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 38,029 psi | 85% | 2697 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 37,623 psi | 84% | 2657 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,768 psi | 84% | 2572 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,100 psi | 80% | 2520 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,864 psi | 69% | 2431 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,399 psi | 65% | 2379 fps | 97.8% |
| Somchem S335 | <<locked>> | 80% | 37,304 psi | 83% | 2579 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 35,549 psi | 79% | 2523 fps | 99.1% |
| Somchem S341 | <<locked>> | 80% | 36,114 psi | 80% | 2615 fps | 95.1% |
| Somchem S355 | <<locked>> | 86% | 34,911 psi | 78% | 2612 fps | 95.5% |
| Somchem S355 | <<locked>> | 88% | 35,346 psi | 79% | 2602 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 32,387 psi | 72% | 2631 fps | 95.8% |
| Somchem S365 | <<locked>> | 96% | 32,576 psi | 72% | 2615 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 37,782 psi | 84% | 2579 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,085 psi | 80% | 2526 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 33,011 psi | 73% | 2549 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 31,169 psi | 69% | 2493 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 33,910 psi | 75% | 2549 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 32,372 psi | 72% | 2497 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 84% | 31,256 psi | 70% | 2500 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 86% | 31,415 psi | 70% | 2487 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 36,767 psi | 82% | 2592 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 80% | 32,706 psi | 73% | 2533 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 31,140 psi | 69% | 2480 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,796 psi | 82% | 2628 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,246 psi | 83% | 2615 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 37,333 psi | 83% | 2690 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 35,389 psi | 79% | 2625 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,461 psi | 77% | 2605 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,969 psi | 78% | 2598 fps | 95.2% |
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 93 powders for 7.7 x 58 mm Arisaka loaded with the .312 | 150gr | Hornady SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,808 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,808 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.312" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, Hodgdon TrailBoss 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, Bofors RP3, Alliant Reloder-17 rank at the top here: for 7.7 x 58 mm Arisaka with the .312 | 150gr | Hornady SP 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.