Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 154gr | Hammer HHT 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 Alliant Reloder-16.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 53,301 psi | 88% | 2986 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,127 psi | 86% | 2995 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,428 psi | 80% | 3015 fps | 98.5% |
| Accurate 4064 | <<locked>> | 86% | 53,679 psi | 88% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,375 psi | 89% | 3146 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 53,577 psi | 88% | 3077 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,868 psi | 90% | 3084 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 52,562 psi | 86% | 3130 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,780 psi | 88% | 3209 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,417 psi | 86% | 3123 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,114 psi | 90% | 3104 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,069 psi | 85% | 3071 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 51,938 psi | 85% | 3153 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,055 psi | 87% | 3182 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,677 psi | 85% | 3114 fps | 96.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,486 psi | 80% | 3100 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,571 psi | 75% | 3045 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,958 psi | 66% | 2943 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,344 psi | 86% | 3245 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,432 psi | 88% | 3091 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 52,199 psi | 86% | 3061 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,486 psi | 80% | 3100 fps | 96.3% |
| Bofors RP7 | <<locked>> | 90% | 52,185 psi | 86% | 3038 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 86% | 52,866 psi | 87% | 3077 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 53,403 psi | 88% | 3143 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 90% | 53,592 psi | 88% | 3100 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 82% | 54,143 psi | 89% | 3087 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 51,982 psi | 85% | 3071 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,085 psi | 89% | 3120 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,679 psi | 88% | 3179 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,868 psi | 59% | 1939 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 51,721 psi | 85% | 3031 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,360 psi | 89% | 3061 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,215 psi | 89% | 3061 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,606 psi | 88% | 3038 fps | 98.5% |
| IMR 4350 | <<locked>> | 94% | 52,997 psi | 87% | 3071 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 90% | 53,940 psi | 89% | 3071 fps | 98.5% |
| IMR 4831 | <<locked>> | 96% | 55,114 psi | 90% | 3136 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 53,447 psi | 88% | 3104 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,592 psi | 88% | 3048 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 52,794 psi | 87% | 2999 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,070 psi | 89% | 3054 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 53,780 psi | 88% | 3068 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 54,781 psi | 90% | 3107 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,842 psi | 65% | 2848 fps | 96.6% |
| Norma 201 | <<locked>> | 82% | 52,083 psi | 86% | 3015 fps | 100% |
| Norma 202 | <<locked>> | 82% | 52,765 psi | 87% | 3015 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,752 psi | 90% | 3110 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,519 psi | 88% | 3123 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 51,503 psi | 85% | 3196 fps | 98.4% |
| Norma URP | <<locked>> | 94% | 53,330 psi | 88% | 3130 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 52,054 psi | 85% | 3081 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 52,185 psi | 86% | 3127 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 60% | 1985 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,026 psi | 87% | 3058 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,692 psi | 87% | 3140 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,620 psi | 86% | 3176 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,317 psi | 89% | 3169 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,359 psi | 88% | 3199 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 84% | 52,779 psi | 87% | 3015 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 52,272 psi | 86% | 3058 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,230 psi | 89% | 3097 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,114 psi | 89% | 3156 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 52,185 psi | 86% | 3038 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 53,780 psi | 88% | 3068 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,592 psi | 88% | 3048 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,070 psi | 89% | 3054 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,781 psi | 90% | 3107 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,099 psi | 89% | 3120 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,563 psi | 90% | 3074 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,011 psi | 85% | 3041 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,374 psi | 88% | 2949 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,128 psi | 89% | 2953 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,505 psi | 88% | 3015 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,621 psi | 88% | 3150 fps | 97.4% |
| Somchem S335 | <<locked>> | 82% | 52,866 psi | 87% | 2946 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,360 psi | 89% | 3064 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 52,591 psi | 86% | 3058 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 52,098 psi | 86% | 3133 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,766 psi | 90% | 3130 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 53,867 psi | 88% | 2933 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 52,895 psi | 87% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,505 psi | 88% | 2995 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 53,882 psi | 88% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,170 psi | 86% | 3071 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,224 psi | 78% | 2982 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 86% | 55,085 psi | 90% | 3038 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,868 psi | 90% | 3133 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,952 psi | 84% | 3127 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 51,953 psi | 85% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,635 psi | 88% | 3146 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,046 psi | 67% | 3084 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,069 psi | 85% | 3051 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,430 psi | 84% | 3061 fps | 96.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 46,572 psi | 76% | 2881 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,513 psi | 75% | 2874 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 36,434 psi | 60% | 2769 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 44,092 psi | 72% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,938 psi | 54% | 2703 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 50,067 psi | 82% | 3018 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,482 psi | 70% | 2854 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 45,876 psi | 75% | 2999 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,470 psi | 76% | 3074 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 45,832 psi | 75% | 2999 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,540 psi | 70% | 2881 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,585 psi | 75% | 2953 fps | 99.5% |
| Alliant Reloder-16 | 59.4 gr | 80% | 32,895 psi | 54% | 2723 fps | 96.1% |
| Alliant Reloder-17 | 64 gr | 80% | 37,144 psi | 61% | 2861 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,252 psi | 74% | 2989 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 45,397 psi | 75% | 3038 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,848 psi | 47% | 2628 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,983 psi | 57% | 2812 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,475 psi | 55% | 2822 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,937 psi | 82% | 3031 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 42,554 psi | 70% | 2887 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 45,397 psi | 75% | 3038 fps | 95.5% |
| Bofors RP7 | <<locked>> | 84% | 43,047 psi | 71% | 2861 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 43,265 psi | 71% | 2897 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 40,538 psi | 67% | 2887 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 44,034 psi | 72% | 2920 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 50,589 psi | 83% | 3028 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,284 psi | 50% | 2612 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,079 psi | 77% | 3002 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 42,931 psi | 70% | 2969 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 44% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,501 psi | 80% | 2976 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,024 psi | 84% | 3012 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,657 psi | 73% | 2890 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,079 psi | 77% | 2920 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 40,886 psi | 67% | 2835 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,378 psi | 65% | 2782 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 31,966 psi | 52% | 2661 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 46,746 psi | 77% | 2986 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 49,980 psi | 82% | 2992 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,574 psi | 81% | 2946 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,759 psi | 73% | 2894 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,695 psi | 60% | 2723 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 39,798 psi | 65% | 2815 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 37,304 psi | 61% | 2792 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 48,849 psi | 80% | 2959 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,443 psi | 81% | 2959 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,947 psi | 74% | 2940 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 46,673 psi | 77% | 2995 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 41,582 psi | 68% | 2992 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,344 psi | 55% | 2710 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 45,150 psi | 74% | 2959 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 37,173 psi | 61% | 2815 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,151 psi | 45% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,497 psi | 71% | 2877 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,023 psi | 80% | 3074 fps | 99.8% |
| ReloadSwiss RS 60 | 64 gr | 80% | 39,566 psi | 65% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,793 psi | 54% | 2720 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 34,853 psi | 57% | 2795 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 46,398 psi | 76% | 2907 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,987 psi | 66% | 2828 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 96% | 50,807 psi | 83% | 3038 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 94% | 44,164 psi | 73% | 2969 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 84% | 43,047 psi | 71% | 2861 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,695 psi | 60% | 2723 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,980 psi | 82% | 2992 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,759 psi | 73% | 2894 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 39,798 psi | 65% | 2815 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,205 psi | 68% | 2884 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,981 psi | 84% | 3015 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,646 psi | 80% | 2986 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,966 psi | 82% | 2897 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,945 psi | 69% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,450 psi | 63% | 2720 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,729 psi | 72% | 2963 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 49,661 psi | 82% | 2894 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,792 psi | 83% | 3005 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,538 psi | 67% | 2831 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 29,791 psi | 49% | 2657 fps | 98.1% |
| Somchem S385 | <<locked>> | 92% | 41,713 psi | 68% | 2884 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 50,502 psi | 83% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,470 psi | 76% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,021 psi | 77% | 2890 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,754 psi | 64% | 2759 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 34,664 psi | 57% | 2713 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 44,179 psi | 73% | 2920 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 45,411 psi | 75% | 2884 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,258 psi | 56% | 2713 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 29,370 psi | 48% | 2644 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,272 psi | 56% | 2687 fps | 98.5% |
| Winchester 760 | <<locked>> | 84% | 40,741 psi | 67% | 2894 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,151 psi | 45% | 2648 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,414 psi | 79% | 2989 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 47,979 psi | 79% | 2999 fps | 95.9% |
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 .300 Blaser Mag. loaded with the .308 | 154gr | Hammer HHT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,939 fps to 3,245 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 (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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, Alliant Reloder-16 rank at the top here: for .300 Blaser Mag. with the .308 | 154gr | Hammer HHT 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.