Load Specifications
Load data in caliber 7 mm KM Katzmaier with .284 | 154gr | Peregrine VLR-5 bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and Alliant Reloder-33.
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>> | 86% | 56,724 psi | 89% | 3015 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 48,486 psi | 76% | 2972 fps | 96.7% |
| Accurate MAGPRO | <<locked>> | 84% | 55,956 psi | 88% | 3127 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 82% | 54,215 psi | 85% | 3048 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 56,826 psi | 89% | 3127 fps | 100% |
| ADI AR 2217 | <<locked>> | 94% | 56,043 psi | 88% | 3107 fps | 100% |
| ADI AR 2218 | <<locked>> | 98% | 56,710 psi | 89% | 3235 fps | 99.1% |
| ADI AR 2225 | <<locked>> | 96% | 55,434 psi | 87% | 3127 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 54,360 psi | 85% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 57,435 psi | 90% | 3097 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 57,217 psi | 90% | 3117 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 55,405 psi | 87% | 3018 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 56,188 psi | 88% | 3100 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,941 psi | 88% | 3104 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 54,476 psi | 85% | 3136 fps | 98.4% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,331 psi | 85% | 3123 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 57,130 psi | 90% | 3087 fps | 98.9% |
| Bofors RP15 | <<locked>> | 88% | 56,623 psi | 89% | 3110 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,941 psi | 88% | 3117 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 57,217 psi | 90% | 3117 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 57,508 psi | 90% | 3127 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 55,376 psi | 87% | 3054 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 54,404 psi | 85% | 3038 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 90% | 55,637 psi | 87% | 3192 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,797 psi | 59% | 1995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,695 psi | 87% | 3031 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 86% | 55,216 psi | 87% | 3107 fps | 99.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 54,302 psi | 85% | 3104 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 54,926 psi | 86% | 2986 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,637 psi | 87% | 3127 fps | 100% |
| Norma MRP | <<locked>> | 84% | 57,464 psi | 90% | 3133 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 56,797 psi | 89% | 3133 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 55,056 psi | 86% | 3051 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,740 psi | 61% | 2041 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 56,463 psi | 88% | 3176 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,622 psi | 87% | 3143 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 82% | 54,563 psi | 86% | 3018 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 57,261 psi | 90% | 3087 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 50,430 psi | 79% | 2986 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,884 psi | 89% | 3081 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,941 psi | 88% | 3005 fps | 99.7% |
| Somchem S385 | <<locked>> | 84% | 57,450 psi | 90% | 3051 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,711 psi | 90% | 3041 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 57,000 psi | 89% | 3071 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 84% | 57,000 psi | 89% | 3048 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,797 psi | 89% | 3140 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 88% | 54,041 psi | 85% | 3068 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 92% | 56,028 psi | 88% | 3143 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 94% | 57,493 psi | 90% | 3215 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 56,202 psi | 88% | 3110 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 57,609 psi | 90% | 3054 fps | 100% |
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>> | 80% | 46,122 psi | 72% | 2841 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 44,933 psi | 70% | 2904 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 80% | 48,399 psi | 76% | 2992 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 80% | 50,662 psi | 79% | 2986 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 45,818 psi | 72% | 2930 fps | 98.9% |
| ADI AR 2217 | <<locked>> | 80% | 33,895 psi | 53% | 2651 fps | 95.8% |
| ADI AR 2218 | 94.5 gr | 92% | 45,063 psi | 71% | 2999 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 31,198 psi | 49% | 2618 fps | 97.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,894 psi | 80% | 2986 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 50,415 psi | 79% | 2976 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 46,456 psi | 73% | 2930 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,194 psi | 71% | 2858 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,436 psi | 62% | 2802 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,982 psi | 81% | 3041 fps | 100% |
| Alliant Reloder-33 | 92.1 gr | 88% | 43,178 psi | 68% | 2913 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 94% | 46,514 psi | 73% | 2976 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 43,830 psi | 69% | 2838 fps | 96.1% |
| Bofors RP15 | <<locked>> | 80% | 43,149 psi | 68% | 2861 fps | 99.1% |
| Bofors RP30 | <<locked>> | 80% | 36,651 psi | 57% | 2730 fps | 96.9% |
| Bofors RP5 | <<locked>> | 80% | 46,456 psi | 73% | 2930 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 80% | 36,985 psi | 58% | 2733 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 80% | 48,225 psi | 76% | 2927 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,369 psi | 74% | 2910 fps | 98.7% |
| Hodgdon Retumbo | <<locked>> | 80% | 38,479 psi | 60% | 2854 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,355 psi | 44% | 1788 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,965 psi | 77% | 2917 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 80% | 44,585 psi | 70% | 2913 fps | 98.7% |
| IMR 8133 Enduron | <<locked>> | 84% | 33,156 psi | 52% | 2657 fps | 95.3% |
| Lovex S071 | <<locked>> | 80% | 39,581 psi | 62% | 2713 fps | 99.8% |
| Norma 217 | <<locked>> | 80% | 28,892 psi | 45% | 2549 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 49,617 psi | 78% | 3005 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 45,136 psi | 71% | 2930 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 80% | 40,567 psi | 64% | 2795 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,109 psi | 46% | 1831 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,029 psi | 60% | 2828 fps | 99.6% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 37,594 psi | 59% | 2776 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 51,097 psi | 80% | 2959 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 80% | 50,067 psi | 78% | 2966 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 46,891 psi | 73% | 2917 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 49,719 psi | 78% | 2966 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 52,185 psi | 82% | 2943 fps | 99.4% |
| Somchem S385 | <<locked>> | 80% | 50,270 psi | 79% | 2936 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 44,092 psi | 69% | 2812 fps | 99.6% |
| Vihtavuori N170 | <<locked>> | 88% | 49,690 psi | 78% | 2943 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 80% | 49,893 psi | 78% | 2940 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 49,153 psi | 77% | 3005 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 80% | 40,857 psi | 64% | 2812 fps | 97.6% |
| Vihtavuori N568 | <<locked>> | 82% | 38,769 psi | 61% | 2799 fps | 95.5% |
| Vihtavuori N570 | 88.6 gr | 88% | 46,122 psi | 72% | 2999 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 80% | 44,512 psi | 70% | 2927 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,485 psi | 73% | 2867 fps | 99.6% |
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 51 powders for 7 mm KM Katzmaier loaded with the .284 | 154gr | Peregrine VLR-5. ADI AR 2218 delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 1,995 fps to 3,235 fps. Accurate 8700 gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, ReloadSwiss RS 14 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. ADI AR 2218, Vihtavuori N570, Alliant Reloder-33 rank at the top here: for 7 mm KM Katzmaier with the .284 | 154gr | Peregrine VLR-5 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.