Load Specifications
Load data in caliber .30-06 Spring. with .307 | 200gr | 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 Power Pro 2000-MR, Hodgdon Superformance 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 50,111 psi | 85% | 2346 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 51,445 psi | 88% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,806 psi | 85% | 2421 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,140 psi | 87% | 2408 fps | 96.7% |
| Accurate 4064 | <<locked>> | 90% | 51,430 psi | 88% | 2451 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 50,546 psi | 86% | 2520 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 52,330 psi | 89% | 2477 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 50,183 psi | 85% | 2434 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,590 psi | 88% | 2438 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,054 psi | 89% | 2411 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 51,329 psi | 87% | 2575 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,055 psi | 90% | 2497 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 50,357 psi | 86% | 2470 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,301 psi | 89% | 2569 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,777 psi | 85% | 2556 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,217 psi | 63% | 2343 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,336 psi | 70% | 2477 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 51,706 psi | 88% | 2490 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 49,937 psi | 85% | 2464 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 50,618 psi | 86% | 2438 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,169 psi | 85% | 2379 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 50,517 psi | 86% | 2464 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,025 psi | 89% | 2543 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 51,010 psi | 87% | 2474 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 50,314 psi | 86% | 2520 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 94% | 51,343 psi | 87% | 2484 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 52,866 psi | 90% | 2487 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,588 psi | 83% | 2461 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 51,779 psi | 88% | 2516 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 50,618 psi | 86% | 2543 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 60% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 50,633 psi | 86% | 2444 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 52,576 psi | 90% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,852 psi | 90% | 2464 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,069 psi | 90% | 2448 fps | 97.8% |
| IMR 4350 | <<locked>> | 98% | 50,662 psi | 86% | 2461 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,431 psi | 89% | 2467 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,300 psi | 87% | 2513 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 51,619 psi | 88% | 2497 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 51,590 psi | 88% | 2438 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 51,648 psi | 88% | 2454 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,170 psi | 89% | 2415 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 52,591 psi | 90% | 2461 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 51,547 psi | 88% | 2457 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 52,402 psi | 89% | 2490 fps | 98% |
| Norma 201 | <<locked>> | 86% | 51,097 psi | 87% | 2428 fps | 100% |
| Norma 202 | <<locked>> | 86% | 51,677 psi | 88% | 2434 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,736 psi | 90% | 2503 fps | 100% |
| Norma URP | <<locked>> | 98% | 50,125 psi | 85% | 2513 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 53,026 psi | 90% | 2526 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,141 psi | 89% | 2552 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 51,488 psi | 88% | 2451 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,024 psi | 87% | 2467 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,301 psi | 89% | 2438 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,926 psi | 61% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 51,532 psi | 88% | 2461 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 50,299 psi | 86% | 2526 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,113 psi | 90% | 2605 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 50,125 psi | 85% | 2539 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 50,314 psi | 86% | 2562 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 84% | 52,301 psi | 89% | 2415 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,692 psi | 88% | 2428 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 49,792 psi | 85% | 2457 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 50,618 psi | 86% | 2438 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 51,547 psi | 88% | 2457 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,648 psi | 88% | 2454 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,591 psi | 90% | 2461 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,402 psi | 89% | 2490 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 51,532 psi | 88% | 2513 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,821 psi | 85% | 2428 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 50,604 psi | 86% | 2451 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,823 psi | 90% | 2375 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,794 psi | 90% | 2375 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,822 psi | 88% | 2418 fps | 97.6% |
| Somchem S321 | <<locked>> | 82% | 52,272 psi | 89% | 2464 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,054 psi | 89% | 2375 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,750 psi | 90% | 2467 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 50,415 psi | 86% | 2457 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,863 psi | 81% | 2516 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,823 psi | 90% | 2346 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,026 psi | 90% | 2362 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,329 psi | 87% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 51,982 psi | 88% | 2411 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 51,895 psi | 88% | 2441 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,460 psi | 89% | 2507 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 51,706 psi | 88% | 2434 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 50,299 psi | 86% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 51,517 psi | 88% | 2513 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,524 psi | 69% | 2411 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,794 psi | 90% | 2490 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 51,488 psi | 88% | 2477 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 50,314 psi | 86% | 2520 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,272 psi | 57% | 2339 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 50,401 psi | 86% | 2461 fps | 100% |
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% | 47,036 psi | 80% | 2306 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,740 psi | 68% | 2244 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,441 psi | 79% | 2375 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,744 psi | 76% | 2310 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,550 psi | 64% | 2241 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,386 psi | 53% | 2182 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 43,323 psi | 74% | 2339 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,898 psi | 63% | 2211 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,368 psi | 77% | 2346 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,585 psi | 78% | 2333 fps | 100% |
| Alliant Power Pro 2000-MR | 43.6 gr | 80% | 39,276 psi | 67% | 2369 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,564 psi | 62% | 2234 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,102 psi | 67% | 2283 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,068 psi | 55% | 2192 fps | 95.3% |
| Alliant Reloder-17 | 42.9 gr | 80% | 31,343 psi | 53% | 2201 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,240 psi | 50% | 2152 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,649 psi | 57% | 2310 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,337 psi | 72% | 2343 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 36,056 psi | 61% | 2238 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 44,744 psi | 76% | 2346 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,268 psi | 80% | 2336 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,106 psi | 75% | 2369 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,559 psi | 83% | 2493 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 36,840 psi | 63% | 2238 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 90% | 41,220 psi | 70% | 2369 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 92% | 48,341 psi | 82% | 2441 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,729 psi | 74% | 2349 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,659 psi | 47% | 2060 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,537 psi | 67% | 2326 fps | 99.4% |
| Hodgdon Superformance | 52.2 gr | 92% | 44,164 psi | 75% | 2438 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 45% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,047 psi | 72% | 2310 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 43,221 psi | 74% | 2343 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,711 psi | 66% | 2238 fps | 98.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,191 psi | 70% | 2257 fps | 95.2% |
| IMR 4350 | <<locked>> | 94% | 44,628 psi | 76% | 2369 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,278 psi | 70% | 2287 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 32,590 psi | 55% | 2192 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 40,045 psi | 68% | 2313 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 45,368 psi | 77% | 2346 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 42,438 psi | 72% | 2323 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,555 psi | 74% | 2287 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 38,638 psi | 66% | 2244 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 35,824 psi | 61% | 2192 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 40,785 psi | 69% | 2306 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 42,453 psi | 72% | 2300 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 42,902 psi | 73% | 2306 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,479 psi | 66% | 2277 fps | 98.6% |
| Norma URP | <<locked>> | 84% | 31,952 psi | 54% | 2182 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 37,956 psi | 65% | 2287 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 37,826 psi | 64% | 2310 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,223 psi | 77% | 2352 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,643 psi | 76% | 2372 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,037 psi | 83% | 2392 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 46% | 1371 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,755 psi | 68% | 2267 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,031 psi | 70% | 2379 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,373 psi | 57% | 2260 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,373 psi | 57% | 2244 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,940 psi | 61% | 2297 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 46,572 psi | 79% | 2333 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,625 psi | 69% | 2260 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 33,924 psi | 58% | 2188 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 44,744 psi | 76% | 2346 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,824 psi | 61% | 2192 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,438 psi | 72% | 2323 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,638 psi | 66% | 2244 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 40,785 psi | 69% | 2306 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,867 psi | 59% | 2231 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,511 psi | 74% | 2329 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,974 psi | 71% | 2316 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,990 psi | 75% | 2257 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,492 psi | 62% | 2142 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,525 psi | 72% | 2280 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 48,892 psi | 83% | 2415 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,453 psi | 74% | 2257 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,149 psi | 73% | 2326 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 34,708 psi | 59% | 2192 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 25,193 psi | 43% | 2044 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 49,632 psi | 84% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,251 psi | 75% | 2247 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,871 psi | 68% | 2241 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,538 psi | 69% | 2251 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,069 psi | 56% | 2139 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 33,489 psi | 57% | 2185 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,585 psi | 78% | 2346 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,914 psi | 66% | 2241 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,793 psi | 56% | 2185 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 29,283 psi | 50% | 2172 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,269 psi | 50% | 2070 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 44,860 psi | 76% | 2382 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 41,495 psi | 71% | 2372 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,673 psi | 47% | 2172 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,133 psi | 70% | 2316 fps | 99.4% |
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 .30-06 Spring. loaded with the .307 | 200gr | Frontier PH HPBT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,605 fps; across all powders the maximum-charge window runs from 1,496 fps to 2,605 fps. Alliant Reloder-16 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 (405 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.307" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .30-06 Spring. with the .307 | 200gr | 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.