Load Specifications
Load data in caliber 7 mm KM Katzmaier with .284 | 168gr | CutEdge MTH bullet and 54 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 Hodgdon Retumbo.
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% | 57,493 psi | 90% | 2910 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 49,342 psi | 77% | 2894 fps | 97.5% |
| Accurate High Country | <<locked>> | 82% | 55,912 psi | 88% | 3022 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 57,043 psi | 89% | 3035 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 82% | 55,013 psi | 86% | 2949 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 57,740 psi | 90% | 3031 fps | 100% |
| ADI AR 2217 | <<locked>> | 94% | 57,101 psi | 89% | 3012 fps | 100% |
| ADI AR 2218 | <<locked>> | 98% | 57,667 psi | 90% | 3146 fps | 99.6% |
| ADI AR 2225 | <<locked>> | 96% | 56,608 psi | 89% | 3031 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,376 psi | 87% | 2946 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,376 psi | 87% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 54,781 psi | 86% | 2940 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 54,244 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 56,275 psi | 88% | 2917 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 57,159 psi | 90% | 2999 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 57,043 psi | 89% | 3005 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 55,448 psi | 87% | 3051 fps | 99% |
| Alliant Reloder-50 | <<locked>> | 98% | 55,201 psi | 87% | 3041 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 54,346 psi | 85% | 2933 fps | 99% |
| Bofors RP15 | <<locked>> | 88% | 57,493 psi | 90% | 3012 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 56,898 psi | 89% | 3022 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 54,244 psi | 85% | 2963 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 54,592 psi | 86% | 2972 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 56,260 psi | 88% | 2956 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 84% | 55,230 psi | 87% | 2940 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 90% | 56,855 psi | 89% | 3097 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,840 psi | 59% | 1903 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 56,507 psi | 89% | 2936 fps | 100% |
| IMR 7828 SSC | <<locked>> | 86% | 56,289 psi | 88% | 3012 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 90% | 55,056 psi | 86% | 2887 fps | 96.3% |
| IMR 8133 Enduron | <<locked>> | 98% | 55,376 psi | 87% | 3018 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 55,825 psi | 87% | 2890 fps | 100% |
| Norma 217 | <<locked>> | 98% | 56,840 psi | 89% | 3038 fps | 100% |
| Norma MRP | <<locked>> | 82% | 54,302 psi | 85% | 2972 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 53,621 psi | 84% | 2972 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 56,072 psi | 88% | 2959 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,841 psi | 61% | 1949 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 53,374 psi | 84% | 3018 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 56,608 psi | 89% | 3054 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 82% | 55,434 psi | 87% | 2920 fps | 100% |
| Rottweil R 905 | <<locked>> | 82% | 54,534 psi | 85% | 2933 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 2904 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 54,172 psi | 85% | 2927 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 56,681 psi | 89% | 2910 fps | 99.9% |
| Somchem S385 | <<locked>> | 82% | 54,694 psi | 86% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 54,766 psi | 86% | 2887 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 54,143 psi | 85% | 2920 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 82% | 54,288 psi | 85% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 53,722 psi | 84% | 2979 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 88% | 54,998 psi | 86% | 2976 fps | 100% |
| Vihtavuori N568 | <<locked>> | 92% | 56,927 psi | 89% | 3051 fps | 99.8% |
| Vihtavuori N570 | <<locked>> | 92% | 54,549 psi | 85% | 3058 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 57,246 psi | 90% | 3009 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 54,563 psi | 86% | 2897 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% | 46,920 psi | 74% | 2753 fps | 100% |
| Accurate 8700 | <<locked>> | 96% | 42,322 psi | 66% | 2756 fps | 95.5% |
| Accurate High Country | <<locked>> | 80% | 52,156 psi | 82% | 2959 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 80% | 49,458 psi | 78% | 2907 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 80% | 51,459 psi | 81% | 2894 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 46,717 psi | 73% | 2841 fps | 99.4% |
| ADI AR 2217 | <<locked>> | 80% | 34,635 psi | 54% | 2582 fps | 97.1% |
| ADI AR 2218 | 88.6 gr | 90% | 42,699 psi | 67% | 2854 fps | 96.3% |
| ADI AR 2225 | <<locked>> | 80% | 31,894 psi | 50% | 2552 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,706 psi | 81% | 2887 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,706 psi | 81% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 51,198 psi | 80% | 2881 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 47,355 psi | 74% | 2841 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 46,093 psi | 72% | 2762 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 40,277 psi | 63% | 2717 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 52,866 psi | 83% | 2946 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 40,828 psi | 64% | 2772 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 92% | 43,888 psi | 69% | 2828 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,469 psi | 70% | 2753 fps | 97% |
| Bofors RP15 | <<locked>> | 80% | 44,063 psi | 69% | 2779 fps | 99.6% |
| Bofors RP30 | <<locked>> | 80% | 37,434 psi | 59% | 2657 fps | 97.9% |
| Bofors RP5 | <<locked>> | 80% | 47,355 psi | 74% | 2841 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 37,782 psi | 59% | 2657 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 80% | 49,110 psi | 77% | 2838 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 48,211 psi | 76% | 2822 fps | 99.3% |
| Hodgdon Retumbo | 74.3 gr | 80% | 39,363 psi | 62% | 2779 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,442 psi | 45% | 1703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,661 psi | 78% | 2822 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 80% | 45,469 psi | 71% | 2828 fps | 99.3% |
| IMR 7977 Enduron | <<locked>> | 88% | 51,634 psi | 81% | 2828 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 82% | 31,575 psi | 49% | 2526 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 40,364 psi | 63% | 2628 fps | 100% |
| Norma 217 | <<locked>> | 80% | 29,704 psi | 47% | 2487 fps | 97% |
| Norma MRP | <<locked>> | 80% | 50,618 psi | 79% | 2913 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 46,151 psi | 72% | 2844 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 80% | 41,379 psi | 65% | 2710 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,225 psi | 46% | 1745 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,783 psi | 61% | 2749 fps | 99.9% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 35,621 psi | 56% | 2638 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 51,967 psi | 81% | 2864 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 80% | 50,850 psi | 80% | 2874 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 44,469 psi | 70% | 2776 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 50,502 psi | 79% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 52,939 psi | 83% | 2851 fps | 99.7% |
| Somchem S385 | <<locked>> | 80% | 51,140 psi | 80% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 44,860 psi | 70% | 2723 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 84% | 44,019 psi | 69% | 2730 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 50,821 psi | 80% | 2841 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 50,111 psi | 79% | 2917 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 80% | 41,626 psi | 65% | 2733 fps | 98.4% |
| Vihtavuori N568 | <<locked>> | 80% | 36,738 psi | 58% | 2657 fps | 95.6% |
| Vihtavuori N570 | 82.9 gr | 86% | 43,714 psi | 69% | 2851 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 45,571 psi | 71% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 47,398 psi | 74% | 2782 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 54 powders for 7 mm KM Katzmaier loaded with the .284 | 168gr | CutEdge MTH. ADI AR 2218 delivers the highest muzzle velocity at 3,146 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,146 fps. Accurate 8700 gives the best case fill at 100 %, and 54 of the 54 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 168.0 gr projectile in 0.284" calls for a 1:7.5 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, Vihtavuori N570, Hodgdon Retumbo rank at the top here: for 7 mm KM Katzmaier with the .284 | 168gr | CutEdge MTH 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.