Load Specifications
Load data in caliber 7 mm KM Katzmaier with .284 | 165gr | Peregrine VLR-5 bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Hodgdon Retumbo and Vihtavuori N570.
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>> | 84% | 54,969 psi | 86% | 2900 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 50,952 psi | 80% | 2943 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 82% | 54,317 psi | 85% | 3015 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 82% | 56,043 psi | 88% | 2989 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 54,940 psi | 86% | 3009 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 54,404 psi | 85% | 2995 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 55,071 psi | 86% | 3127 fps | 99.3% |
| ADI AR 2225 | <<locked>> | 94% | 54,143 psi | 85% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 55,782 psi | 87% | 2979 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 55,376 psi | 87% | 3002 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 57,522 psi | 90% | 2959 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 54,563 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 57,029 psi | 89% | 3100 fps | 99.2% |
| Alliant Reloder-50 | <<locked>> | 98% | 56,913 psi | 89% | 3087 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 55,274 psi | 87% | 2972 fps | 99.1% |
| Bofors RP15 | <<locked>> | 86% | 55,013 psi | 86% | 2995 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 54,404 psi | 85% | 3009 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 55,376 psi | 87% | 3002 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 55,796 psi | 87% | 3012 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 57,537 psi | 90% | 3002 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 84% | 56,304 psi | 88% | 2982 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 88% | 54,215 psi | 85% | 3077 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,898 psi | 59% | 1932 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 57,377 psi | 90% | 2972 fps | 100% |
| IMR 7828 SSC | <<locked>> | 86% | 57,479 psi | 90% | 3054 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 90% | 56,028 psi | 88% | 2927 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 98% | 56,826 psi | 89% | 3061 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 56,971 psi | 89% | 2930 fps | 100% |
| Norma 217 | <<locked>> | 96% | 54,418 psi | 85% | 3022 fps | 100% |
| Norma MRP | <<locked>> | 82% | 55,695 psi | 87% | 3018 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 54,810 psi | 86% | 3015 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 57,421 psi | 90% | 3002 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,885 psi | 61% | 1975 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 54,998 psi | 86% | 3061 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 53,998 psi | 85% | 3031 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 82% | 56,260 psi | 88% | 2959 fps | 100% |
| Rottweil R 905 | <<locked>> | 82% | 55,622 psi | 87% | 2972 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 52,663 psi | 83% | 2949 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 55,259 psi | 87% | 2969 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 55,680 psi | 87% | 2936 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 55,985 psi | 88% | 2930 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 55,216 psi | 87% | 2959 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 82% | 55,259 psi | 87% | 2933 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 55,042 psi | 86% | 3025 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 88% | 56,318 psi | 88% | 3022 fps | 100% |
| Vihtavuori N568 | <<locked>> | 90% | 54,476 psi | 85% | 3035 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 92% | 55,985 psi | 88% | 3104 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 84% | 54,694 psi | 86% | 2995 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 55,608 psi | 87% | 2936 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% | 47,805 psi | 75% | 2789 fps | 100% |
| Accurate 8700 | <<locked>> | 96% | 43,685 psi | 68% | 2802 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 80% | 50,575 psi | 79% | 2949 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 80% | 52,373 psi | 82% | 2933 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 47,747 psi | 75% | 2887 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 80% | 35,404 psi | 55% | 2618 fps | 97.3% |
| ADI AR 2218 | 89.3 gr | 88% | 40,524 psi | 64% | 2818 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 32,706 psi | 51% | 2592 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 80% | 52,054 psi | 82% | 2920 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 48,385 psi | 76% | 2884 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 47,079 psi | 74% | 2802 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,191 psi | 65% | 2756 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 41,959 psi | 66% | 2812 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 90% | 41,989 psi | 66% | 2802 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 45,339 psi | 71% | 2792 fps | 97.2% |
| Bofors RP15 | <<locked>> | 80% | 44,933 psi | 70% | 2818 fps | 99.7% |
| Bofors RP30 | <<locked>> | 80% | 38,261 psi | 60% | 2694 fps | 98.1% |
| Bofors RP5 | <<locked>> | 80% | 48,385 psi | 76% | 2884 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 38,696 psi | 61% | 2700 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 80% | 50,082 psi | 78% | 2877 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 49,168 psi | 77% | 2861 fps | 99.4% |
| Hodgdon Retumbo | 76.7 gr | 80% | 40,422 psi | 63% | 2822 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,485 psi | 45% | 1729 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 50,444 psi | 79% | 2858 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 80% | 46,543 psi | 73% | 2867 fps | 99.4% |
| IMR 7977 Enduron | <<locked>> | 88% | 52,663 psi | 83% | 2871 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 82% | 32,474 psi | 51% | 2566 fps | 95.8% |
| Lovex S071 | <<locked>> | 80% | 41,176 psi | 65% | 2664 fps | 100% |
| Norma 217 | <<locked>> | 80% | 30,545 psi | 48% | 2526 fps | 97.2% |
| Norma MRP | <<locked>> | 80% | 51,822 psi | 81% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 47,195 psi | 74% | 2887 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 80% | 42,453 psi | 67% | 2753 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,269 psi | 46% | 1772 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 39,871 psi | 62% | 2792 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 36,564 psi | 57% | 2677 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 52,823 psi | 83% | 2904 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 80% | 51,953 psi | 81% | 2913 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 42,511 psi | 67% | 2756 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 51,605 psi | 81% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 52,127 psi | 82% | 2881 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 45,658 psi | 72% | 2759 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 84% | 44,860 psi | 70% | 2769 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 51,837 psi | 81% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 51,256 psi | 80% | 2959 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 80% | 42,554 psi | 67% | 2769 fps | 98.5% |
| Vihtavuori N568 | <<locked>> | 80% | 37,739 psi | 59% | 2700 fps | 95.9% |
| Vihtavuori N570 | 83.5 gr | 84% | 41,626 psi | 65% | 2822 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 46,818 psi | 73% | 2874 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 48,341 psi | 76% | 2818 fps | 99.9% |
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 49 powders for 7 mm KM Katzmaier loaded with the .284 | 165gr | Peregrine VLR-5. ADI AR 2218 delivers the highest muzzle velocity at 3,127 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,127 fps. Accurate 8700 gives the best case fill at 100 %, and 49 of the 49 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 165.0 gr projectile in 0.284" calls for a 1:8.5 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, Hodgdon Retumbo, Vihtavuori N570 rank at the top here: for 7 mm KM Katzmaier with the .284 | 165gr | 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.