Load Specifications
Load data in caliber 7 mm KM Katzmaier with .284 | 195gr | Berger Elite Hunter bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Ramshot LRT and Alliant Reloder-50.
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 8700 | <<locked>> | 98% | 55,637 psi | 87% | 2822 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 88% | 54,621 psi | 86% | 2782 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 55,419 psi | 87% | 2927 fps | 100% |
| ADI AR 2225 | <<locked>> | 90% | 54,984 psi | 86% | 2808 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 57,319 psi | 90% | 2730 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 54,868 psi | 86% | 2766 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 57,464 psi | 90% | 2897 fps | 99.9% |
| Alliant Reloder-50 | <<locked>> | 92% | 54,143 psi | 85% | 2841 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 57,740 psi | 90% | 2808 fps | 99.9% |
| Bofors RP15 | <<locked>> | 82% | 54,882 psi | 86% | 2776 fps | 100% |
| Bofors RP30 | <<locked>> | 86% | 54,795 psi | 86% | 2799 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 55,767 psi | 87% | 2795 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 55,187 psi | 86% | 2864 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,363 psi | 60% | 1788 fps | 100% |
| Hodgdon US 869 | <<locked>> | 96% | 56,028 psi | 88% | 2822 fps | 96.9% |
| IMR 7828 SSC | <<locked>> | 82% | 57,087 psi | 89% | 2828 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 86% | 55,056 psi | 86% | 2720 fps | 97.9% |
| IMR 8133 Enduron | <<locked>> | 94% | 57,711 psi | 90% | 2854 fps | 100% |
| Lovex D100 | <<locked>> | 90% | 56,608 psi | 89% | 2779 fps | 97.4% |
| Lovex S071 | <<locked>> | 86% | 57,246 psi | 90% | 2717 fps | 100% |
| Norma 217 | <<locked>> | 92% | 55,709 psi | 87% | 2822 fps | 100% |
| Ramshot LRT | <<locked>> | 92% | 54,853 psi | 86% | 2858 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 84% | 57,188 psi | 90% | 2779 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,465 psi | 62% | 1831 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 55,666 psi | 87% | 2844 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 54,578 psi | 86% | 2831 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 90% | 56,608 psi | 89% | 2779 fps | 97.4% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 57,116 psi | 90% | 2822 fps | 99.6% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 54,273 psi | 85% | 2805 fps | 98.3% |
| Vihtavuori 24N41 | <<locked>> | 94% | 56,492 psi | 89% | 2828 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 82% | 55,317 psi | 87% | 2707 fps | 100% |
| Vihtavuori N170 | <<locked>> | 86% | 54,766 psi | 86% | 2756 fps | 99% |
| Vihtavuori N565 | <<locked>> | 84% | 56,376 psi | 88% | 2808 fps | 100% |
| Vihtavuori N568 | <<locked>> | 86% | 54,897 psi | 86% | 2831 fps | 100% |
| Vihtavuori N570 | <<locked>> | 88% | 56,637 psi | 89% | 2904 fps | 99.8% |
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 8700 | <<locked>> | 86% | 35,911 psi | 56% | 2454 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 80% | 41,365 psi | 65% | 2562 fps | 99.8% |
| ADI AR 2218 | 79.9 gr | 80% | 35,534 psi | 56% | 2520 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 38,740 psi | 61% | 2539 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 53,824 psi | 84% | 2684 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 48,008 psi | 75% | 2664 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 80% | 39,914 psi | 63% | 2582 fps | 97.1% |
| Alliant Reloder-50 | 83.2 gr | 82% | 37,681 psi | 59% | 2523 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 50,821 psi | 80% | 2700 fps | 99.4% |
| Bofors RP15 | <<locked>> | 80% | 51,372 psi | 81% | 2723 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 44,875 psi | 70% | 2635 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 45,049 psi | 71% | 2628 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 47,790 psi | 75% | 2749 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,906 psi | 45% | 1598 fps | 100% |
| Hodgdon US 869 | <<locked>> | 92% | 48,733 psi | 76% | 2700 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 80% | 53,301 psi | 84% | 2772 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 80% | 45,353 psi | 71% | 2552 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 80% | 36,187 psi | 57% | 2474 fps | 98.8% |
| Lovex D100 | <<locked>> | 86% | 49,240 psi | 77% | 2657 fps | 95.8% |
| Lovex S071 | <<locked>> | 80% | 47,297 psi | 74% | 2572 fps | 100% |
| Norma 217 | <<locked>> | 80% | 37,072 psi | 58% | 2500 fps | 99.9% |
| Ramshot LRT | 89.7 gr | 90% | 51,097 psi | 80% | 2792 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 80% | 49,530 psi | 78% | 2671 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,805 psi | 47% | 1637 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 47,732 psi | 75% | 2726 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 43,729 psi | 69% | 2644 fps | 99.4% |
| Shooters World 50 BMG | <<locked>> | 86% | 49,240 psi | 77% | 2657 fps | 95.8% |
| SNPE Vectan SP 13 | <<locked>> | 86% | 38,058 psi | 60% | 2480 fps | 95.5% |
| Vihtavuori 20N29 | <<locked>> | 94% | 44,063 psi | 69% | 2625 fps | 95.9% |
| Vihtavuori 24N41 | <<locked>> | 90% | 49,153 psi | 77% | 2707 fps | 95.1% |
| Vihtavuori N165 | <<locked>> | 80% | 51,822 psi | 81% | 2657 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 44,947 psi | 70% | 2585 fps | 97.1% |
| Vihtavuori N565 | <<locked>> | 80% | 49,255 psi | 77% | 2697 fps | 100% |
| Vihtavuori N568 | <<locked>> | 80% | 44,469 psi | 70% | 2651 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 80% | 42,699 psi | 67% | 2651 fps | 97.5% |
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 35 powders for 7 mm KM Katzmaier loaded with the .284 | 195gr | Berger Elite Hunter. ADI AR 2218 delivers the highest muzzle velocity at 2,927 fps; across all powders the maximum-charge window runs from 1,788 fps to 2,927 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 35 of the 35 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 195.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori 20N29 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, Ramshot LRT, Alliant Reloder-50 rank at the top here: for 7 mm KM Katzmaier with the .284 | 195gr | Berger Elite Hunter 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.