Load Specifications
Load data in caliber .30-06 R Stief with .308 | 220gr | Alaska Bullet Works Kodiak PP SPBC bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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.
A valid access license is required to use the Personalized Load Calculator.
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 2495 | <<locked>> | 84% | 52,025 psi | 89% | 2310 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,560 psi | 86% | 2320 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,803 psi | 78% | 2343 fps | 98.8% |
| Accurate 4064 | <<locked>> | 86% | 52,402 psi | 89% | 2356 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 51,953 psi | 88% | 2441 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 51,938 psi | 88% | 2379 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 49,908 psi | 85% | 2339 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 50,183 psi | 85% | 2428 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 51,619 psi | 88% | 2487 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 50,096 psi | 85% | 2359 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 50,473 psi | 86% | 2375 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 52,997 psi | 90% | 2487 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 50,473 psi | 86% | 2467 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,272 psi | 89% | 2464 fps | 97.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,963 psi | 78% | 2411 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,453 psi | 74% | 2369 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,058 psi | 65% | 2290 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,907 psi | 83% | 2523 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 51,605 psi | 88% | 2395 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 50,531 psi | 86% | 2372 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,963 psi | 78% | 2411 fps | 96.8% |
| Bofors RP7 | <<locked>> | 90% | 50,401 psi | 86% | 2352 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 86% | 51,227 psi | 87% | 2385 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 51,024 psi | 87% | 2438 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 90% | 51,663 psi | 88% | 2405 fps | 98% |
| Hodgdon H4895 | <<locked>> | 82% | 52,518 psi | 89% | 2385 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 52,881 psi | 90% | 2418 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 52,054 psi | 89% | 2418 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 50,807 psi | 86% | 2467 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,071 psi | 61% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 50,401 psi | 86% | 2346 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 52,823 psi | 90% | 2362 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,533 psi | 89% | 2365 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 52,011 psi | 89% | 2349 fps | 98.9% |
| IMR 4350 | <<locked>> | 94% | 50,879 psi | 87% | 2382 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 52,373 psi | 89% | 2382 fps | 98.9% |
| IMR 4831 | <<locked>> | 96% | 52,373 psi | 89% | 2431 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 51,779 psi | 88% | 2402 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 53,040 psi | 90% | 2411 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 82% | 51,982 psi | 88% | 2356 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 51,387 psi | 87% | 2313 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 52,576 psi | 90% | 2362 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 51,837 psi | 88% | 2375 fps | 99.6% |
| Lovex S070 | <<locked>> | 94% | 52,692 psi | 90% | 2408 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,145 psi | 65% | 2221 fps | 97.3% |
| Norma 201 | <<locked>> | 82% | 51,053 psi | 87% | 2333 fps | 100% |
| Norma 202 | <<locked>> | 82% | 51,430 psi | 88% | 2329 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,055 psi | 90% | 2408 fps | 100% |
| Norma 204 | <<locked>> | 94% | 51,256 psi | 87% | 2425 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 48,559 psi | 83% | 2487 fps | 98.6% |
| Norma URP | <<locked>> | 94% | 50,923 psi | 87% | 2428 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 50,096 psi | 85% | 2388 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 49,922 psi | 85% | 2431 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 62% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 51,213 psi | 87% | 2369 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 50,923 psi | 87% | 2431 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 50,285 psi | 86% | 2464 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 51,474 psi | 88% | 2461 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 50,618 psi | 86% | 2484 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 84% | 51,619 psi | 88% | 2333 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 50,444 psi | 86% | 2365 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 51,808 psi | 88% | 2402 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,198 psi | 87% | 2448 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 50,401 psi | 86% | 2352 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 51,837 psi | 88% | 2375 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 51,982 psi | 88% | 2356 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 52,576 psi | 90% | 2362 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 52,692 psi | 90% | 2408 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 51,938 psi | 88% | 2418 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,736 psi | 90% | 2379 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 50,560 psi | 86% | 2356 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 52,069 psi | 89% | 2270 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 52,576 psi | 90% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 51,648 psi | 88% | 2336 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,705 psi | 86% | 2444 fps | 97.7% |
| Somchem S335 | <<locked>> | 82% | 51,764 psi | 88% | 2274 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,576 psi | 90% | 2372 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 50,807 psi | 86% | 2365 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 52,866 psi | 90% | 2474 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,967 psi | 88% | 2431 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 52,460 psi | 89% | 2257 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 51,430 psi | 88% | 2297 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 51,909 psi | 88% | 2313 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 51,982 psi | 88% | 2346 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 49,951 psi | 85% | 2379 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,744 psi | 76% | 2313 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 84% | 50,125 psi | 85% | 2313 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 52,330 psi | 89% | 2431 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,312 psi | 82% | 2431 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,142 psi | 90% | 2402 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 51,300 psi | 87% | 2444 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,899 psi | 66% | 2405 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,140 psi | 85% | 2362 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,849 psi | 83% | 2375 fps | 97% |
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 2495 | <<locked>> | 80% | 45,774 psi | 78% | 2231 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,324 psi | 75% | 2224 fps | 96.8% |
| Accurate 3100 | <<locked>> | 90% | 32,663 psi | 56% | 2116 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 43,352 psi | 74% | 2234 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,140 psi | 55% | 2110 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,776 psi | 83% | 2333 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,626 psi | 71% | 2215 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 41,524 psi | 71% | 2283 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,020 psi | 77% | 2388 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,481 psi | 71% | 2231 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,411 psi | 76% | 2287 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,256 psi | 55% | 2123 fps | 97.3% |
| Alliant Reloder-17 | 45.3 gr | 80% | 36,114 psi | 61% | 2231 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 40,741 psi | 69% | 2277 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 96% | 40,335 psi | 69% | 2313 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,034 psi | 43% | 1965 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 31,734 psi | 54% | 2149 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 86% | 30,095 psi | 51% | 2156 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,182 psi | 82% | 2346 fps | 99.9% |
| Bofors RP3 | <<locked>> | 80% | 41,466 psi | 71% | 2241 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 40,335 psi | 69% | 2313 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 37,217 psi | 63% | 2133 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 42,134 psi | 72% | 2247 fps | 99% |
| Hodgdon H414 | <<locked>> | 82% | 36,811 psi | 63% | 2201 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 40,030 psi | 68% | 2218 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,284 psi | 84% | 2343 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,704 psi | 51% | 2034 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,701 psi | 78% | 2329 fps | 100% |
| Hodgdon Superformance | 50.2 gr | 84% | 38,363 psi | 65% | 2257 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 46% | 1299 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,311 psi | 81% | 2303 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,632 psi | 84% | 2323 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,758 psi | 74% | 2241 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,108 psi | 78% | 2260 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 37,434 psi | 64% | 2159 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,450 psi | 65% | 2156 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 31,386 psi | 53% | 2080 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 45,513 psi | 77% | 2313 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 50,067 psi | 85% | 2369 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 80% | 48,689 psi | 83% | 2316 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,530 psi | 83% | 2274 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,859 psi | 75% | 2241 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,042 psi | 61% | 2116 fps | 96.8% |
| Lovex S070 | <<locked>> | 80% | 34,287 psi | 58% | 2100 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 31,459 psi | 54% | 2090 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,906 psi | 82% | 2290 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,211 psi | 82% | 2287 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,772 psi | 75% | 2277 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 41,858 psi | 71% | 2277 fps | 95.1% |
| Norma MRP | <<locked>> | 92% | 37,173 psi | 63% | 2280 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 32,518 psi | 55% | 2113 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 43,743 psi | 74% | 2297 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 33,765 psi | 57% | 2149 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,253 psi | 46% | 1332 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,395 psi | 72% | 2234 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,601 psi | 81% | 2385 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,450 psi | 65% | 2280 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,865 psi | 54% | 2126 fps | 96.7% |
| ReloadSwiss RS 70 | 46 gr | 80% | 31,749 psi | 54% | 2129 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 45,643 psi | 78% | 2251 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,146 psi | 67% | 2195 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 45,730 psi | 78% | 2310 fps | 95% |
| Rottweil R 905 | <<locked>> | 94% | 42,148 psi | 72% | 2306 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 37,217 psi | 63% | 2133 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,042 psi | 61% | 2116 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,689 psi | 83% | 2316 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,859 psi | 75% | 2241 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 34,287 psi | 58% | 2100 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,089 psi | 68% | 2241 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,443 psi | 84% | 2336 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,442 psi | 81% | 2313 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,023 psi | 83% | 2234 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,089 psi | 70% | 2126 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 35,114 psi | 60% | 2067 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,756 psi | 71% | 2303 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 48,646 psi | 83% | 2234 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,023 psi | 83% | 2326 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,668 psi | 68% | 2195 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 29,138 psi | 50% | 2077 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 37,724 psi | 64% | 2205 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 49,443 psi | 84% | 2221 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,513 psi | 77% | 2221 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,876 psi | 78% | 2234 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,869 psi | 64% | 2142 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 33,721 psi | 57% | 2110 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 96% | 39,508 psi | 67% | 2224 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 44,164 psi | 75% | 2231 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,373 psi | 57% | 2116 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 26,890 psi | 46% | 2028 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,257 psi | 57% | 2090 fps | 99% |
| Winchester 760 | <<locked>> | 82% | 36,811 psi | 63% | 2201 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 24,874 psi | 42% | 2031 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,036 psi | 80% | 2316 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 42,670 psi | 73% | 2280 fps | 95.5% |
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 R Stief loaded with the .308 | 220gr | Alaska Bullet Works Kodiak PP SPBC. Alliant Reloder-26 delivers the highest muzzle velocity at 2,523 fps; across all powders the maximum-charge window runs from 1,457 fps to 2,523 fps. Accurate 3100 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 61–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .30-06 R Stief with the .308 | 220gr | Alaska Bullet Works Kodiak PP SPBC 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.