Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 127gr | Geco ZERO LG bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 52,373 psi | 86% | 3038 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,447 psi | 89% | 3110 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,808 psi | 85% | 3143 fps | 99.2% |
| Accurate 4064 | <<locked>> | 84% | 52,968 psi | 87% | 3097 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,853 psi | 88% | 3205 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 53,795 psi | 88% | 3140 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 51,735 psi | 85% | 3189 fps | 97.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,997 psi | 87% | 3238 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,808 psi | 87% | 3264 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 51,880 psi | 85% | 3186 fps | 97.2% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 51,880 psi | 85% | 3186 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,418 psi | 89% | 3163 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,708 psi | 90% | 3186 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,940 psi | 90% | 3274 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,417 psi | 86% | 3238 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,679 psi | 90% | 3238 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,677 psi | 85% | 3232 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,791 psi | 80% | 3169 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,424 psi | 70% | 3071 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,228 psi | 86% | 3310 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,282 psi | 78% | 3143 fps | 96.2% |
| Bofors RP3 | <<locked>> | 86% | 55,027 psi | 90% | 3176 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,677 psi | 85% | 3232 fps | 97.4% |
| Bofors RP7 | <<locked>> | 90% | 54,752 psi | 90% | 3159 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 51,938 psi | 85% | 3133 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 52,910 psi | 87% | 3205 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 88% | 52,765 psi | 87% | 3163 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 51,706 psi | 85% | 3136 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,243 psi | 87% | 3179 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 52,910 psi | 87% | 3238 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 59% | 2005 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,186 psi | 89% | 3143 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,055 psi | 87% | 3117 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,359 psi | 86% | 3094 fps | 98.5% |
| IMR 4350 | <<locked>> | 92% | 52,359 psi | 86% | 3133 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,069 psi | 87% | 3133 fps | 98.6% |
| IMR 4831 | <<locked>> | 94% | 54,549 psi | 90% | 3202 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 52,547 psi | 86% | 3159 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,868 psi | 90% | 3173 fps | 96% |
| Lovex S060 | <<locked>> | 82% | 54,781 psi | 90% | 3107 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,272 psi | 87% | 3114 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 52,997 psi | 87% | 3127 fps | 99.4% |
| Lovex S070 | <<locked>> | 92% | 54,070 psi | 89% | 3169 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,670 psi | 70% | 2972 fps | 97.6% |
| Norma 201 | <<locked>> | 82% | 54,360 psi | 89% | 3123 fps | 100% |
| Norma 203B | <<locked>> | 84% | 53,969 psi | 89% | 3169 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,910 psi | 87% | 3186 fps | 97.2% |
| Norma MRP | <<locked>> | 98% | 51,416 psi | 84% | 3261 fps | 98.6% |
| Norma URP | <<locked>> | 92% | 52,852 psi | 87% | 3196 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 54,853 psi | 90% | 3196 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 51,764 psi | 85% | 3189 fps | 99.1% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,005 psi | 74% | 3071 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,651 psi | 60% | 2054 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,083 psi | 86% | 3117 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 52,054 psi | 85% | 3238 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,012 psi | 89% | 3232 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,736 psi | 87% | 3261 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 51,677 psi | 85% | 3071 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 51,576 psi | 85% | 3114 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,635 psi | 88% | 3163 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 98% | 53,780 psi | 88% | 3222 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 54,752 psi | 90% | 3159 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 52,997 psi | 87% | 3127 fps | 99.4% |
| Shooters World Precision | <<locked>> | 84% | 53,272 psi | 87% | 3114 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,070 psi | 89% | 3169 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,374 psi | 88% | 3182 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,375 psi | 89% | 3153 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,055 psi | 87% | 3005 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,721 psi | 87% | 3074 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,330 psi | 88% | 3215 fps | 97.6% |
| Somchem S335 | <<locked>> | 82% | 55,013 psi | 90% | 3048 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 51,634 psi | 85% | 3110 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 52,098 psi | 86% | 3199 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,288 psi | 89% | 3192 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 82% | 52,098 psi | 86% | 3035 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,344 psi | 86% | 3045 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,156 psi | 87% | 3087 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,027 psi | 90% | 3189 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,256 psi | 83% | 3104 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 84% | 54,085 psi | 89% | 3094 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,128 psi | 89% | 3192 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,433 psi | 89% | 3251 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,027 psi | 90% | 3153 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,910 psi | 87% | 3205 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,048 psi | 72% | 3222 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,650 psi | 90% | 3163 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,853 psi | 90% | 3189 fps | 97.7% |
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% | 49,095 psi | 81% | 2989 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,572 psi | 78% | 2989 fps | 96.9% |
| Accurate 3100 | <<locked>> | 90% | 36,260 psi | 60% | 2825 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 46,543 psi | 76% | 2992 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,172 psi | 58% | 2822 fps | 97% |
| ADI AR 2208 | <<locked>> | 80% | 44,396 psi | 73% | 2963 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 45,382 psi | 75% | 3061 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 49,516 psi | 81% | 3169 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,066 psi | 81% | 3196 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,324 psi | 74% | 3058 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,324 psi | 74% | 3058 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,802 psi | 74% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,935 psi | 79% | 3068 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,635 psi | 57% | 2838 fps | 97.1% |
| Alliant Reloder-17 | 58.4 gr | 80% | 39,349 psi | 65% | 2979 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,788 psi | 74% | 3048 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 45,034 psi | 74% | 3097 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,760 psi | 44% | 2612 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,911 psi | 57% | 2874 fps | 95.7% |
| Alliant Reloder-26 | 64.3 gr | 86% | 33,170 psi | 54% | 2874 fps | 95.8% |
| Bofors RP15 | <<locked>> | 98% | 44,382 psi | 73% | 3084 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 44,860 psi | 74% | 2999 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 45,034 psi | 74% | 3097 fps | 95.7% |
| Bofors RP7 | <<locked>> | 82% | 42,235 psi | 69% | 2913 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 45,426 psi | 75% | 3009 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 40,205 psi | 66% | 2946 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 43,308 psi | 71% | 2972 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,155 psi | 53% | 2723 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,821 psi | 82% | 3120 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,363 psi | 65% | 2953 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,934 psi | 44% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,749 psi | 83% | 3087 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,673 psi | 77% | 3002 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,095 psi | 81% | 3035 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,292 psi | 66% | 2887 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,162 psi | 68% | 2890 fps | 95.9% |
| IMR 4831 | <<locked>> | 80% | 33,924 psi | 56% | 2772 fps | 96.7% |
| IMR 4895 | <<locked>> | 80% | 49,197 psi | 81% | 3100 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,459 psi | 84% | 3114 fps | 95.2% |
| Lovex S060 | <<locked>> | 80% | 51,605 psi | 85% | 3054 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,905 psi | 77% | 3005 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,566 psi | 63% | 2835 fps | 96.7% |
| Lovex S070 | <<locked>> | 82% | 39,117 psi | 64% | 2864 fps | 95.7% |
| Lovex S071 | <<locked>> | 94% | 34,983 psi | 57% | 2792 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 51,140 psi | 84% | 3071 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,268 psi | 78% | 3051 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,948 psi | 75% | 3048 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 38,638 psi | 63% | 2986 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,288 psi | 58% | 2825 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 80% | 47,616 psi | 78% | 3074 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,666 psi | 60% | 2867 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 41,872 psi | 69% | 3005 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,238 psi | 45% | 1837 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,542 psi | 75% | 2989 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,887 psi | 69% | 3048 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,983 psi | 57% | 2838 fps | 96.6% |
| ReloadSwiss RS 70 | 59.3 gr | 80% | 34,330 psi | 56% | 2844 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 48,617 psi | 80% | 3018 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,163 psi | 69% | 2940 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 50,183 psi | 82% | 3097 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 92% | 43,671 psi | 72% | 3028 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 82% | 42,235 psi | 69% | 2913 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,566 psi | 63% | 2835 fps | 96.7% |
| Shooters World Precision | <<locked>> | 80% | 46,905 psi | 77% | 3005 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 39,117 psi | 64% | 2864 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,526 psi | 71% | 2999 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,995 psi | 84% | 3097 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,729 psi | 72% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,710 psi | 62% | 2769 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,265 psi | 71% | 3018 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 51,822 psi | 85% | 2999 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,656 psi | 70% | 2943 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 31,691 psi | 52% | 2772 fps | 98.9% |
| Somchem S385 | <<locked>> | 90% | 41,481 psi | 68% | 2943 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 48,646 psi | 80% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,211 psi | 81% | 2995 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,741 psi | 67% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,709 psi | 60% | 2828 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 96% | 43,772 psi | 72% | 2979 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 47,500 psi | 78% | 2986 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,143 psi | 59% | 2825 fps | 97% |
| Vihtavuori N555 | <<locked>> | 82% | 29,254 psi | 48% | 2694 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,042 psi | 59% | 2795 fps | 99.1% |
| Winchester 760 | <<locked>> | 82% | 40,205 psi | 66% | 2946 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,992 psi | 44% | 2703 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,937 psi | 84% | 3104 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,135 psi | 72% | 2992 fps | 95.2% |
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 87 powders for 7 mm Blaser Mag. loaded with the .284 | 127gr | Geco ZERO LG. Alliant Reloder-26 delivers the highest muzzle velocity at 3,310 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,310 fps. Accurate 3100 gives the best case fill at 100 %, and 87 of the 87 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 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 2213, 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, Alliant Reloder-26, Alliant Reloder-17 rank at the top here: for 7 mm Blaser 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.