Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 127gr | Geco ZERO LG 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% | 53,026 psi | 85% | 2992 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,200 psi | 85% | 3005 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,283 psi | 77% | 3012 fps | 98% |
| Accurate 4064 | <<locked>> | 86% | 53,476 psi | 86% | 3048 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,157 psi | 87% | 3143 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 53,301 psi | 85% | 3081 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,462 psi | 87% | 3081 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 3186 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,622 psi | 89% | 3081 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,417 psi | 86% | 3205 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,969 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,259 psi | 89% | 3130 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,376 psi | 89% | 3212 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 52,924 psi | 85% | 3182 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,013 psi | 88% | 3169 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,382 psi | 73% | 3038 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,740 psi | 64% | 2927 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,083 psi | 84% | 3238 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,258 psi | 85% | 3091 fps | 99.7% |
| Bofors RP3 | <<locked>> | 88% | 55,724 psi | 89% | 3123 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,521 psi | 89% | 3097 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,347 psi | 89% | 3110 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,376 psi | 90% | 3136 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 54,636 psi | 88% | 3166 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 94% | 55,245 psi | 89% | 3133 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 82% | 53,911 psi | 86% | 3091 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,317 psi | 89% | 3127 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,259 psi | 87% | 3130 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,548 psi | 86% | 3176 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 58% | 1955 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,201 psi | 87% | 3081 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,362 psi | 90% | 3104 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,272 psi | 85% | 3054 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,956 psi | 90% | 3084 fps | 98.4% |
| IMR 4350 | <<locked>> | 96% | 56,362 psi | 90% | 3130 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 53,969 psi | 87% | 3074 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,579 psi | 89% | 3150 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 53,171 psi | 85% | 3104 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,622 psi | 89% | 3081 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,185 psi | 85% | 3048 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,869 psi | 90% | 3058 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 53,940 psi | 86% | 3061 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 53,592 psi | 86% | 3068 fps | 99% |
| Lovex S070 | <<locked>> | 94% | 54,578 psi | 88% | 3107 fps | 98.4% |
| Norma 201 | <<locked>> | 84% | 55,317 psi | 89% | 3074 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,101 psi | 90% | 3074 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,520 psi | 87% | 3114 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,345 psi | 86% | 3117 fps | 96.3% |
| Norma MRPᴾ | <<locked>> | 100% | 51,459 psi | 83% | 3189 fps | 97.8% |
| Norma URP | <<locked>> | 94% | 53,113 psi | 85% | 3130 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 55,405 psi | 89% | 3140 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,767 psi | 89% | 3189 fps | 99.1% |
| Ramshot TAC | <<locked>> | 82% | 55,738 psi | 89% | 3100 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,811 psi | 89% | 3120 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,390 psi | 58% | 1998 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 52,881 psi | 85% | 3061 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,217 psi | 90% | 3202 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,376 psi | 90% | 3238 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,273 psi | 87% | 3169 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,272 psi | 85% | 3199 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 55,985 psi | 90% | 3054 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,941 psi | 90% | 3074 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,593 psi | 89% | 3114 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 3153 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 55,521 psi | 89% | 3097 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 53,592 psi | 86% | 3068 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,185 psi | 85% | 3048 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 53,940 psi | 86% | 3061 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,578 psi | 88% | 3107 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 53,838 psi | 86% | 3120 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,317 psi | 87% | 3074 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,288 psi | 89% | 3104 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 52,968 psi | 85% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 53,911 psi | 86% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,374 psi | 86% | 3015 fps | 98% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,519 psi | 86% | 3146 fps | 96.7% |
| Somchem S335 | <<locked>> | 84% | 56,043 psi | 90% | 3005 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,186 psi | 87% | 3068 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,854 psi | 90% | 3114 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,695 psi | 89% | 3192 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,650 psi | 88% | 3127 fps | 97.8% |
| Unknown powder | <<locked>> | 92% | 54,027 psi | 87% | 3140 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 86% | 56,391 psi | 90% | 2989 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,043 psi | 90% | 3035 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,912 psi | 90% | 3045 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,896 psi | 86% | 3041 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,636 psi | 88% | 3110 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 86% | 55,593 psi | 89% | 3068 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,824 psi | 88% | 3156 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 3127 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,535 psi | 89% | 3100 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,636 psi | 88% | 3166 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,799 psi | 65% | 3068 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,301 psi | 85% | 3094 fps | 96.4% |
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% | 46,340 psi | 74% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,441 psi | 74% | 2884 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 38,928 psi | 62% | 2825 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 43,888 psi | 70% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,880 psi | 53% | 2697 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 50,009 psi | 80% | 3022 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,380 psi | 68% | 2854 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 96% | 48,950 psi | 78% | 3058 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,185 psi | 84% | 3025 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,267 psi | 74% | 3071 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,395 psi | 68% | 2881 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,556 psi | 73% | 2953 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,851 psi | 53% | 2713 fps | 95.2% |
| Alliant Reloder-17 | 55.5 gr | 80% | 37,086 psi | 59% | 2858 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,080 psi | 77% | 3041 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,661 psi | 49% | 2674 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,275 psi | 60% | 2864 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,795 psi | 57% | 2874 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,748 psi | 80% | 3031 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 42,235 psi | 68% | 2884 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 45,788 psi | 73% | 2920 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,663 psi | 83% | 3048 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,989 psi | 69% | 2894 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 82% | 41,191 psi | 66% | 2900 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 90% | 48,588 psi | 78% | 3012 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 50,575 psi | 81% | 3035 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,153 psi | 48% | 2605 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,164 psi | 71% | 2949 fps | 99.8% |
| Hodgdon Superformance | 63 gr | 86% | 42,859 psi | 69% | 2963 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 43% | 1745 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,686 psi | 72% | 2907 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 46,456 psi | 74% | 2946 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,452 psi | 66% | 2828 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,973 psi | 66% | 2792 fps | 95% |
| IMR 4350 | <<locked>> | 88% | 43,497 psi | 70% | 2890 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,756 psi | 67% | 2835 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 33,054 psi | 53% | 2684 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 46,731 psi | 75% | 2986 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 52,185 psi | 84% | 3025 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,777 psi | 80% | 2995 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,255 psi | 79% | 2946 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 44,469 psi | 71% | 2894 fps | 99.9% |
| Lovex S065 | <<locked>> | 82% | 38,972 psi | 62% | 2776 fps | 95.8% |
| Lovex S070 | <<locked>> | 86% | 42,235 psi | 68% | 2867 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 48,660 psi | 78% | 2963 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,342 psi | 79% | 2966 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,889 psi | 72% | 2940 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 49,908 psi | 80% | 3058 fps | 95.5% |
| Norma MRP | <<locked>> | 96% | 44,527 psi | 71% | 3048 fps | 96% |
| Norma URP | <<locked>> | 80% | 33,170 psi | 53% | 2700 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 44,962 psi | 72% | 2956 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 39,653 psi | 64% | 2871 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 52,185 psi | 84% | 3041 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,141 psi | 84% | 3058 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,137 psi | 44% | 1791 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,308 psi | 69% | 2874 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,907 psi | 78% | 3077 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,508 psi | 63% | 2927 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,244 psi | 57% | 2779 fps | 95.6% |
| ReloadSwiss RS 70 | 59.1 gr | 84% | 37,246 psi | 60% | 2851 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 52,533 psi | 84% | 2999 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,369 psi | 74% | 2913 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 39,784 psi | 64% | 2825 fps | 99% |
| Rottweil R 905 | <<locked>> | 96% | 47,108 psi | 76% | 3028 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 86% | 45,788 psi | 73% | 2920 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,972 psi | 62% | 2776 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,777 psi | 80% | 2995 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,469 psi | 71% | 2894 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 42,235 psi | 68% | 2867 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,104 psi | 66% | 2881 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,691 psi | 81% | 3015 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,530 psi | 78% | 2989 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,850 psi | 80% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,843 psi | 67% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,872 psi | 66% | 2772 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 46,673 psi | 75% | 3018 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 49,458 psi | 79% | 2904 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,604 psi | 81% | 3009 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 40,350 psi | 65% | 2825 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 29,675 psi | 48% | 2644 fps | 97.3% |
| Somchem S385 | <<locked>> | 94% | 44,614 psi | 72% | 2943 fps | 95.4% |
| Unknown powder | <<locked>> | 80% | 36,013 psi | 58% | 2766 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 47,123 psi | 76% | 2844 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,325 psi | 74% | 2884 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,079 psi | 74% | 2887 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,490 psi | 55% | 2664 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 36,085 psi | 58% | 2743 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 45,730 psi | 73% | 2904 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,492 psi | 59% | 2782 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 86% | 31,357 psi | 50% | 2694 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,127 psi | 55% | 2680 fps | 97.8% |
| Winchester 760 | <<locked>> | 82% | 41,191 psi | 66% | 2900 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,950 psi | 46% | 2697 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,487 psi | 79% | 3025 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 7 mm Rem. Mag. loaded with the .284 | 127gr | Geco ZERO LG. Alliant Reloder-26 delivers the highest muzzle velocity at 3,238 fps; across all powders the maximum-charge window runs from 1,955 fps to 3,238 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 (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 127.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 7 mm Rem. Mag. with the .284 | 127gr | Geco ZERO LG 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.