Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 144gr | Peregrine VLR-5 bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 98% | 54,433 psi | 89% | 3025 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,839 psi | 90% | 2949 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,475 psi | 86% | 3015 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 53,258 psi | 87% | 3120 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 55,042 psi | 90% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,882 psi | 88% | 3071 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 51,605 psi | 85% | 3064 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,739 psi | 62% | 2822 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,489 psi | 86% | 2959 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,737 psi | 88% | 3081 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,984 psi | 90% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,229 psi | 87% | 3054 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,607 psi | 90% | 3123 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 51,590 psi | 85% | 3041 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,630 psi | 78% | 3031 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,663 psi | 85% | 3127 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,490 psi | 88% | 3100 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 53,272 psi | 87% | 2976 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,453 psi | 71% | 2946 fps | 96.1% |
| Bofors RP5 | <<locked>> | 98% | 54,607 psi | 90% | 3123 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 52,605 psi | 86% | 2966 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,224 psi | 78% | 2972 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 53,548 psi | 88% | 2995 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,752 psi | 90% | 3071 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 54,404 psi | 89% | 3031 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 51,677 psi | 85% | 3005 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,230 psi | 89% | 3048 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,911 psi | 89% | 2995 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,688 psi | 77% | 3077 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 86% | 51,329 psi | 84% | 3048 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 60% | 1900 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,549 psi | 90% | 2972 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,998 psi | 89% | 3005 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,331 psi | 89% | 2995 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 53,156 psi | 87% | 3009 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,229 psi | 87% | 2995 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 52,620 psi | 86% | 3097 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 54,694 psi | 90% | 2963 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,491 psi | 89% | 2989 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,562 psi | 86% | 2982 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,298 psi | 79% | 2927 fps | 99.5% |
| Norma 204 | <<locked>> | 90% | 54,839 psi | 90% | 3061 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 54,085 psi | 89% | 3143 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 51,634 psi | 85% | 3005 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,113 psi | 87% | 3114 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 53,983 psi | 89% | 3061 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,155 psi | 84% | 3045 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 61% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,316 psi | 88% | 2976 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,288 psi | 89% | 3087 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,736 psi | 87% | 3041 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,839 psi | 90% | 3130 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,818 psi | 77% | 3071 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 53,388 psi | 88% | 2972 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,851 psi | 85% | 2979 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 94% | 52,446 psi | 86% | 3041 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 52,605 psi | 86% | 2966 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,491 psi | 89% | 2989 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,694 psi | 90% | 2963 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,562 psi | 86% | 2982 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,547 psi | 85% | 2979 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,114 psi | 89% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,056 psi | 89% | 2943 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,996 psi | 85% | 3035 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 53,447 psi | 88% | 2969 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,345 psi | 88% | 2969 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 54,882 psi | 90% | 3058 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,939 psi | 87% | 3015 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,723 psi | 90% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,388 psi | 88% | 2995 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,475 psi | 86% | 2989 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 52,692 psi | 87% | 3002 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,882 psi | 88% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,215 psi | 89% | 3136 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,748 psi | 82% | 3038 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,055 psi | 87% | 2959 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,013 psi | 90% | 3077 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,503 psi | 85% | 3173 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,243 psi | 87% | 3012 fps | 98.6% |
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 3100 | <<locked>> | 82% | 31,053 psi | 51% | 2549 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 51,343 psi | 84% | 2897 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,581 psi | 65% | 2776 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 94% | 49,516 psi | 81% | 3051 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 48,559 psi | 80% | 2884 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,118 psi | 68% | 2822 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 44,846 psi | 74% | 2930 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 35,346 psi | 58% | 2756 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,197 psi | 81% | 2907 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,595 psi | 63% | 2792 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,208 psi | 73% | 2920 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,857 psi | 67% | 2815 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,638 psi | 63% | 2808 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,108 psi | 46% | 2526 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,023 psi | 49% | 2598 fps | 95.1% |
| Alliant Reloder-26 | 60.1 gr | 80% | 30,197 psi | 50% | 2648 fps | 96.2% |
| Bofors RP15 | <<locked>> | 90% | 38,290 psi | 63% | 2795 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 49,545 psi | 81% | 2917 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,567 psi | 67% | 2881 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 38,638 psi | 63% | 2808 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,410 psi | 71% | 2792 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 41,162 psi | 68% | 2841 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 50,111 psi | 82% | 2936 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,742 psi | 69% | 2828 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,541 psi | 73% | 2848 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 48,269 psi | 79% | 2943 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,108 psi | 77% | 2920 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,042 psi | 59% | 2674 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,218 psi | 63% | 2874 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 40,770 psi | 67% | 2841 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,166 psi | 45% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,097 psi | 84% | 2917 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,044 psi | 64% | 2717 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,049 psi | 74% | 2825 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,130 psi | 63% | 2726 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,833 psi | 77% | 2877 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 42,859 psi | 70% | 2900 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 51,256 psi | 84% | 2910 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,293 psi | 69% | 2769 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 40,509 psi | 67% | 2749 fps | 97.6% |
| Lovex S071 | <<locked>> | 88% | 32,503 psi | 53% | 2589 fps | 95.8% |
| Norma 204 | <<locked>> | 82% | 41,495 psi | 68% | 2808 fps | 95.8% |
| Norma MRP | 61.3 gr | 84% | 35,186 psi | 58% | 2749 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 39,363 psi | 65% | 2769 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 42,699 psi | 70% | 2910 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 38,377 psi | 63% | 2759 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 37,826 psi | 62% | 2776 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 46% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,009 psi | 82% | 2920 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,021 psi | 77% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,595 psi | 65% | 2795 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,348 psi | 63% | 2808 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,998 psi | 57% | 2779 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 46,644 psi | 77% | 2861 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,670 psi | 70% | 2802 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 40,059 psi | 66% | 2799 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 43,410 psi | 71% | 2792 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,293 psi | 69% | 2769 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 51,256 psi | 84% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,509 psi | 67% | 2749 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,254 psi | 79% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,805 psi | 78% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,495 psi | 68% | 2713 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,697 psi | 65% | 2792 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 46,862 psi | 77% | 2861 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,543 psi | 76% | 2848 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,897 psi | 59% | 2723 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,491 psi | 58% | 2661 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 44,817 psi | 74% | 2785 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,785 psi | 67% | 2769 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 37,391 psi | 61% | 2697 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 40,350 psi | 66% | 2772 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 31,198 psi | 51% | 2605 fps | 97.6% |
| Vihtavuori N560 | 67.1 gr | 92% | 47,108 psi | 77% | 3005 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 96% | 43,381 psi | 71% | 2913 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,016 psi | 66% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,974 psi | 69% | 2835 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,801 psi | 41% | 2500 fps | 96.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,914 psi | 66% | 2759 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 84 powders for 7 mm Blaser Mag. loaded with the .284 | 144gr | Peregrine VLR-5. Winchester StaBALL HD delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,173 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 144gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.