Load Specifications
Load data in caliber .277 Fury Commercial with .277 | 140gr | Sierra Tipped GameKing bullet and 93 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 52 and Hodgdon LEVERevolution.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 54,128 psi | 86% | 2530 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 56,202 psi | 89% | 2595 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 55,042 psi | 87% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,231 psi | 89% | 2641 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,231 psi | 89% | 2641 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 54,621 psi | 87% | 2621 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,862 psi | 74% | 2566 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 82% | 54,157 psi | 86% | 2484 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 54,563 psi | 86% | 2503 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,507 psi | 90% | 2651 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 53,998 psi | 86% | 2598 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 82% | 54,752 psi | 87% | 2592 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,970 psi | 89% | 2615 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 90% | 56,101 psi | 89% | 2605 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 54,201 psi | 86% | 2661 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,318 psi | 89% | 2756 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,869 psi | 90% | 2667 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 54,331 psi | 86% | 2539 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,389 psi | 86% | 2638 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,601 psi | 74% | 2572 fps | 96.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,027 psi | 86% | 2723 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,608 psi | 90% | 2526 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,492 psi | 90% | 2667 fps | 98.5% |
| Bofors RP3 | <<locked>> | 96% | 53,940 psi | 85% | 2635 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,795 psi | 87% | 2559 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,926 psi | 87% | 2641 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,724 psi | 90% | 2730 fps | 99% |
| Hodgdon H322 | <<locked>> | 88% | 56,028 psi | 89% | 2608 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,853 psi | 85% | 2589 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 55,274 psi | 88% | 2641 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 82% | 55,651 psi | 88% | 2523 fps | 100% |
| Hodgdon H4895 | <<locked>> | 92% | 56,985 psi | 90% | 2661 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,641 psi | 68% | 2464 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 55,695 psi | 88% | 2687 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,824 psi | 55% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,853 psi | 85% | 2602 fps | 99.3% |
| IMR 3031 | <<locked>> | 94% | 54,607 psi | 87% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 56,072 psi | 89% | 2618 fps | 98.9% |
| IMR 4198 | <<locked>> | 84% | 54,491 psi | 86% | 2500 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 55,724 psi | 88% | 2671 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 90% | 55,970 psi | 89% | 2615 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 84% | 55,056 psi | 87% | 2579 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 56,043 psi | 89% | 2602 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,796 psi | 88% | 2635 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,826 psi | 90% | 2592 fps | 99.3% |
| Lovex S062 | <<locked>> | 96% | 56,391 psi | 89% | 2631 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,199 psi | 83% | 2569 fps | 96.3% |
| Norma 201 | <<locked>> | 92% | 55,361 psi | 88% | 2605 fps | 99.7% |
| Norma 202 | <<locked>> | 92% | 55,738 psi | 88% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,797 psi | 90% | 2674 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 46,630 psi | 74% | 2559 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 94% | 53,853 psi | 85% | 2651 fps | 98.9% |
| Ramshot TAC | <<locked>> | 90% | 56,695 psi | 90% | 2628 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,709 psi | 88% | 2644 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,940 psi | 85% | 2572 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,244 psi | 56% | 1611 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,608 psi | 88% | 2602 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 55,753 psi | 88% | 2621 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,128 psi | 86% | 2697 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,853 psi | 85% | 2730 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,514 psi | 74% | 2582 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 90% | 56,434 psi | 89% | 2595 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,912 psi | 89% | 2605 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 56,797 psi | 90% | 2667 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,199 psi | 83% | 2569 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,796 psi | 88% | 2635 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 56,391 psi | 89% | 2631 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,695 psi | 88% | 2575 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,911 psi | 87% | 2598 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,332 psi | 88% | 2677 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,926 psi | 87% | 2556 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,737 psi | 87% | 2605 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,013 psi | 87% | 2625 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,012 psi | 86% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 57,014 psi | 90% | 2552 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 53,809 psi | 85% | 2602 fps | 99.7% |
| Somchem S335 | <<locked>> | 92% | 56,492 psi | 90% | 2559 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,056 psi | 86% | 2598 fps | 98.9% |
| Somchem S355 | <<locked>> | 98% | 54,230 psi | 86% | 2621 fps | 99.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,756 psi | 66% | 2513 fps | 98.5% |
| Unknown powderᴾ | <<locked>> | 100% | 51,343 psi | 81% | 2621 fps | 96.8% |
| Vihtavuori N130 | <<locked>> | 86% | 53,882 psi | 85% | 2490 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,969 psi | 86% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,737 psi | 87% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,463 psi | 89% | 2595 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,463 psi | 88% | 2605 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,313 psi | 78% | 2566 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 90% | 56,579 psi | 90% | 2615 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 54,201 psi | 86% | 2585 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,254 psi | 76% | 2566 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,415 psi | 80% | 2556 fps | 98.9% |
| Winchester 748 | <<locked>> | 88% | 56,797 psi | 90% | 2671 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,565 psi | 90% | 2661 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 42,395 psi | 67% | 2359 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,209 psi | 73% | 2454 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 35,085 psi | 56% | 2270 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 39,711 psi | 63% | 2382 fps | 98.9% |
| Accurate 2520 | <<locked>> | 80% | 39,711 psi | 63% | 2382 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 33,156 psi | 53% | 2251 fps | 98.3% |
| Accurate 4350 | <<locked>> | 98% | 43,816 psi | 69% | 2513 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 50,647 psi | 80% | 2438 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,981 psi | 81% | 2454 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,015 psi | 62% | 2352 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 39,827 psi | 63% | 2356 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 51,053 psi | 81% | 2539 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,988 psi | 65% | 2372 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,176 psi | 64% | 2382 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,485 psi | 75% | 2556 fps | 98.6% |
| Alliant Power Pro 2000-MR | 38.6 gr | 86% | 42,931 psi | 68% | 2523 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,534 psi | 55% | 2280 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,022 psi | 76% | 2451 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,711 psi | 63% | 2388 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,408 psi | 66% | 2470 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 88% | 36,332 psi | 58% | 2388 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,530 psi | 79% | 2431 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,553 psi | 64% | 2402 fps | 95% |
| Bofors RP3 | <<locked>> | 82% | 33,765 psi | 54% | 2274 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,105 psi | 68% | 2372 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,146 psi | 62% | 2382 fps | 97.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,815 psi | 68% | 2500 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 80% | 43,352 psi | 69% | 2418 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,357 psi | 80% | 2539 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 45,397 psi | 72% | 2484 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 52,402 psi | 83% | 2477 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 39,262 psi | 62% | 2365 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 37,724 psi | 60% | 2365 fps | 95.8% |
| Hodgdon LEVERevolution | 35.3 gr | 82% | 35,433 psi | 56% | 2333 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,991 psi | 41% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,070 psi | 56% | 2264 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 35,070 psi | 56% | 2310 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 39,030 psi | 62% | 2333 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 48,530 psi | 77% | 2421 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 37,942 psi | 60% | 2362 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 40,988 psi | 65% | 2372 fps | 97.8% |
| Lovex D073.4 | <<locked>> | 80% | 47,950 psi | 76% | 2477 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 45,716 psi | 72% | 2451 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 37,333 psi | 59% | 2336 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 39,711 psi | 63% | 2310 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 34,592 psi | 55% | 2254 fps | 96% |
| Lovex S065 | <<locked>> | 98% | 49,168 psi | 78% | 2520 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 38,348 psi | 61% | 2320 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 38,130 psi | 60% | 2329 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 36,419 psi | 58% | 2323 fps | 95% |
| Norma URP | <<locked>> | 98% | 43,888 psi | 70% | 2510 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 84% | 38,522 psi | 61% | 2385 fps | 95.4% |
| Ramshot TAC | <<locked>> | 84% | 46,398 psi | 74% | 2464 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,958 psi | 63% | 2382 fps | 96.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,440 psi | 70% | 2418 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,165 psi | 41% | 1437 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,803 psi | 73% | 2454 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 52,605 psi | 83% | 2575 fps | 95.5% |
| ReloadSwiss RS 52 | 35.7 gr | 82% | 38,566 psi | 61% | 2425 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 31,763 psi | 50% | 2283 fps | 95.8% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 43,395 psi | 69% | 2526 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 42,003 psi | 67% | 2369 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 36,419 psi | 58% | 2274 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 86% | 36,129 psi | 57% | 2323 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 49,168 psi | 78% | 2520 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,333 psi | 59% | 2336 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 34,592 psi | 55% | 2254 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,660 psi | 77% | 2474 fps | 98.9% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,387 psi | 81% | 2549 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 37,536 psi | 59% | 2369 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,863 psi | 77% | 2470 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,295 psi | 70% | 2438 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,507 psi | 59% | 2323 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,001 psi | 63% | 2297 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,866 psi | 52% | 2169 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 43,758 psi | 69% | 2441 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 39,494 psi | 63% | 2300 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 38,363 psi | 61% | 2333 fps | 95.5% |
| Somchem S355 | <<locked>> | 84% | 35,027 psi | 56% | 2283 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 32,300 psi | 51% | 2300 fps | 95.2% |
| Unknown powder | <<locked>> | 96% | 45,150 psi | 72% | 2520 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 45,339 psi | 72% | 2369 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,103 psi | 64% | 2300 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,433 psi | 56% | 2274 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 36,129 psi | 57% | 2274 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 31,285 psi | 50% | 2182 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 43,279 psi | 69% | 2464 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 41,031 psi | 65% | 2369 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,722 psi | 55% | 2257 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 98% | 45,440 psi | 72% | 2516 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,361 psi | 58% | 2300 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 42,844 psi | 68% | 2457 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,542 psi | 72% | 2493 fps | 98.1% |
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 93 powders for .277 Fury Commercial loaded with the .277 | 140gr | Sierra Tipped GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,575 fps to 2,756 fps. Accurate 4350 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 (435 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.277" calls for a 1:11.0 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 52, Hodgdon LEVERevolution rank at the top here: for .277 Fury Commercial with the .277 | 140gr | Sierra Tipped GameKing 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.