Load Specifications
Load data in caliber 7 x 64 Brenneke with .283 | 140gr | Frontier PH HPBT bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 51,474 psi | 86% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,563 psi | 89% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,692 psi | 86% | 2792 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,692 psi | 88% | 2769 fps | 96.3% |
| Accurate 4064 | <<locked>> | 90% | 53,476 psi | 89% | 2825 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,127 psi | 88% | 2900 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 53,853 psi | 89% | 2851 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 51,851 psi | 86% | 2805 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,084 psi | 88% | 2805 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,606 psi | 89% | 2782 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,374 psi | 89% | 2966 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 51,721 psi | 86% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 52,170 psi | 87% | 2844 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 51,053 psi | 85% | 2900 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,054 psi | 86% | 2940 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,928 psi | 65% | 2690 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,410 psi | 72% | 2844 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,679 psi | 89% | 2867 fps | 99.5% |
| Bofors RP3 | <<locked>> | 90% | 52,098 psi | 87% | 2838 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,460 psi | 87% | 2805 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 51,619 psi | 86% | 2743 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,301 psi | 87% | 2835 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,954 psi | 90% | 2927 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 53,069 psi | 88% | 2851 fps | 99% |
| Hodgdon H414 | <<locked>> | 96% | 52,315 psi | 87% | 2894 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 94% | 53,229 psi | 88% | 2858 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 54,360 psi | 90% | 2861 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,575 psi | 84% | 2831 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,911 psi | 90% | 2897 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 52,910 psi | 88% | 2923 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 59% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 52,359 psi | 87% | 2815 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 54,389 psi | 90% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 51,140 psi | 85% | 2782 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,227 psi | 85% | 2759 fps | 96.8% |
| IMR 4350 | <<locked>> | 98% | 52,504 psi | 87% | 2828 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,244 psi | 90% | 2838 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,664 psi | 89% | 2890 fps | 99.4% |
| IMR 4895 | <<locked>> | 88% | 53,461 psi | 89% | 2874 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 53,084 psi | 88% | 2805 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 53,563 psi | 89% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,621 psi | 89% | 2782 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 54,462 psi | 90% | 2835 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 53,447 psi | 89% | 2831 fps | 98.5% |
| Lovex S070 | <<locked>> | 98% | 54,302 psi | 90% | 2864 fps | 97.7% |
| Norma 201 | <<locked>> | 86% | 52,939 psi | 88% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,272 psi | 89% | 2802 fps | 100% |
| Norma 203B | <<locked>> | 88% | 51,416 psi | 85% | 2831 fps | 99.7% |
| Norma URP | <<locked>> | 98% | 52,214 psi | 87% | 2887 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 88% | 51,576 psi | 86% | 2851 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 51,184 psi | 85% | 2881 fps | 97.8% |
| Ramshot TAC | <<locked>> | 84% | 53,345 psi | 89% | 2822 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,721 psi | 88% | 2838 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,635 psi | 89% | 2802 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,810 psi | 59% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,447 psi | 89% | 2831 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 52,286 psi | 87% | 2907 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 51,880 psi | 86% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,881 psi | 88% | 2923 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 52,620 psi | 87% | 2949 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 53,954 psi | 90% | 2785 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,200 psi | 88% | 2795 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 51,982 psi | 86% | 2831 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 52,460 psi | 87% | 2805 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,447 psi | 89% | 2831 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 53,563 psi | 89% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,462 psi | 90% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,302 psi | 90% | 2864 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,592 psi | 89% | 2890 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 51,547 psi | 86% | 2795 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,301 psi | 87% | 2822 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,404 psi | 90% | 2743 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 51,300 psi | 85% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,722 psi | 89% | 2782 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 54,027 psi | 90% | 2835 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,853 psi | 89% | 2743 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 51,343 psi | 85% | 2792 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 52,533 psi | 87% | 2831 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,270 psi | 84% | 2894 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,143 psi | 90% | 2707 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 51,430 psi | 85% | 2684 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,040 psi | 88% | 2766 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,809 psi | 89% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,621 psi | 89% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 51,227 psi | 85% | 2831 fps | 99% |
| Vihtavuori N530 | <<locked>> | 84% | 53,534 psi | 89% | 2805 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 51,967 psi | 86% | 2779 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,809 psi | 89% | 2890 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,511 psi | 71% | 2766 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 51,590 psi | 86% | 2815 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 53,403 psi | 89% | 2854 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 52,634 psi | 87% | 2897 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,925 psi | 58% | 2684 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,156 psi | 87% | 2831 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 48,428 psi | 80% | 2661 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,350 psi | 69% | 2592 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,341 psi | 80% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,327 psi | 82% | 2713 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,073 psi | 65% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,940 psi | 58% | 2556 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 44,773 psi | 74% | 2694 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 37,942 psi | 63% | 2539 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,833 psi | 78% | 2703 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 47,108 psi | 78% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,567 psi | 67% | 2720 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,695 psi | 63% | 2566 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,480 psi | 67% | 2628 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,375 psi | 59% | 2572 fps | 95.6% |
| Alliant Reloder-17 | 44.3 gr | 80% | 32,387 psi | 54% | 2523 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,530 psi | 51% | 2470 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,666 psi | 63% | 2713 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,918 psi | 73% | 2697 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 37,202 psi | 62% | 2566 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 46,267 psi | 77% | 2700 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,385 psi | 80% | 2690 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,556 psi | 76% | 2723 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,444 psi | 84% | 2871 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 38,130 psi | 63% | 2569 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 92% | 45,977 psi | 76% | 2779 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 92% | 49,908 psi | 83% | 2802 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 45,194 psi | 75% | 2707 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,342 psi | 50% | 2411 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,220 psi | 68% | 2677 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 45,992 psi | 76% | 2799 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,310 psi | 44% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,178 psi | 72% | 2654 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 44,657 psi | 74% | 2697 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,842 psi | 66% | 2575 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,281 psi | 75% | 2654 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 46,325 psi | 77% | 2723 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,034 psi | 75% | 2677 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 33,866 psi | 56% | 2513 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 41,481 psi | 69% | 2661 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 46,833 psi | 78% | 2703 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 43,990 psi | 73% | 2677 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,643 psi | 74% | 2631 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 39,784 psi | 66% | 2579 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 39,508 psi | 66% | 2572 fps | 95.3% |
| Lovex S070 | <<locked>> | 92% | 45,150 psi | 75% | 2707 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 43,918 psi | 73% | 2648 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 44,135 psi | 73% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,871 psi | 66% | 2618 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 35,259 psi | 59% | 2559 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 39,233 psi | 65% | 2625 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 42,018 psi | 70% | 2710 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 46,717 psi | 78% | 2707 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,282 psi | 77% | 2730 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,372 psi | 84% | 2749 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 44% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,220 psi | 68% | 2608 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,380 psi | 70% | 2730 fps | 98.2% |
| ReloadSwiss RS 60 | 44.3 gr | 80% | 34,490 psi | 57% | 2592 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 37,231 psi | 62% | 2631 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 40,132 psi | 67% | 2703 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 47,906 psi | 80% | 2690 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,800 psi | 69% | 2602 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 35,041 psi | 58% | 2510 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 46,267 psi | 77% | 2700 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,508 psi | 66% | 2572 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,990 psi | 73% | 2677 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,784 psi | 66% | 2579 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 45,150 psi | 75% | 2707 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,911 psi | 60% | 2556 fps | 97% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,846 psi | 75% | 2680 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,047 psi | 72% | 2657 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,194 psi | 75% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,608 psi | 62% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,353 psi | 74% | 2625 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 50,647 psi | 84% | 2782 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,875 psi | 75% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,730 psi | 74% | 2680 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 36,027 psi | 60% | 2520 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 27,847 psi | 46% | 2398 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 50,995 psi | 85% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,527 psi | 76% | 2595 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,263 psi | 69% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,698 psi | 69% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,142 psi | 57% | 2454 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 84% | 34,664 psi | 58% | 2510 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 46,775 psi | 78% | 2697 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 40,277 psi | 67% | 2579 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,303 psi | 60% | 2562 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 32,764 psi | 54% | 2546 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,327 psi | 50% | 2375 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 46,427 psi | 77% | 2743 fps | 100% |
| Winchester 760 | 49.9 gr | 92% | 45,977 psi | 76% | 2779 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,647 psi | 51% | 2549 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,743 psi | 71% | 2667 fps | 99.1% |
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 94 powders for 7 x 64 Brenneke loaded with the .283 | 140gr | Frontier PH HPBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,966 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,966 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.283" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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 Reloder-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for 7 x 64 Brenneke with the .283 | 140gr | Frontier PH HPBT 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.