Load Specifications
Load data in caliber 7 mm KM Katzmaier with .284 | 162gr | Hornady SST bullet and 48 powders. The key underlying parameters are shown in the table above.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 56,782 psi | 89% | 2946 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 52,881 psi | 83% | 2992 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 82% | 56,014 psi | 88% | 3061 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 82% | 57,653 psi | 90% | 3035 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 56,507 psi | 89% | 3058 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 56,144 psi | 88% | 3041 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 56,985 psi | 89% | 3179 fps | 99.5% |
| ADI AR 2225 | <<locked>> | 94% | 55,970 psi | 88% | 3064 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 57,188 psi | 90% | 3022 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 57,072 psi | 89% | 3048 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 55,593 psi | 87% | 2949 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 56,463 psi | 88% | 3031 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 54,969 psi | 86% | 3081 fps | 98.9% |
| Alliant Reloder-50 | <<locked>> | 96% | 55,230 psi | 87% | 3077 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 56,594 psi | 89% | 3015 fps | 99.2% |
| Bofors RP15 | <<locked>> | 86% | 56,681 psi | 89% | 3041 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 56,376 psi | 88% | 3058 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 57,072 psi | 89% | 3048 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 57,551 psi | 90% | 3058 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 55,100 psi | 86% | 2986 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 82% | 54,172 psi | 85% | 2969 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 88% | 56,188 psi | 88% | 3127 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,985 psi | 60% | 1955 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 55,245 psi | 87% | 2963 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 84% | 55,259 psi | 87% | 3041 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 90% | 57,450 psi | 90% | 2969 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 96% | 55,100 psi | 86% | 3051 fps | 100% |
| Lovex S071 | <<locked>> | 88% | 55,419 psi | 87% | 2927 fps | 100% |
| Norma 217 | <<locked>> | 96% | 56,637 psi | 89% | 3071 fps | 100% |
| Norma MRP | <<locked>> | 82% | 57,435 psi | 90% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 56,782 psi | 89% | 3068 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 55,143 psi | 86% | 2989 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,146 psi | 61% | 2001 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 56,971 psi | 89% | 3107 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 56,115 psi | 88% | 3084 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 82% | 57,145 psi | 90% | 3018 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 54,636 psi | 86% | 2999 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 56,782 psi | 89% | 3015 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 57,392 psi | 90% | 2982 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 57,566 psi | 90% | 2972 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 57,087 psi | 89% | 3009 fps | 98% |
| Vihtavuori N555 | <<locked>> | 82% | 57,072 psi | 89% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 56,710 psi | 89% | 3071 fps | 100% |
| Vihtavuori N565 | <<locked>> | 86% | 54,317 psi | 85% | 3005 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 90% | 56,318 psi | 88% | 3084 fps | 99.7% |
| Vihtavuori N570 | <<locked>> | 90% | 54,099 psi | 85% | 3091 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 56,797 psi | 89% | 3045 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 57,174 psi | 90% | 2982 fps | 100% |
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 49,661 psi | 78% | 2838 fps | 100% |
| Accurate 8700 | <<locked>> | 94% | 42,293 psi | 66% | 2789 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 80% | 52,141 psi | 82% | 2995 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 80% | 53,795 psi | 84% | 2976 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 49,226 psi | 77% | 2930 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 80% | 36,840 psi | 58% | 2671 fps | 97.7% |
| ADI AR 2218 | <<locked>> | 88% | 42,250 psi | 66% | 2881 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 34,229 psi | 54% | 2648 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 53,476 psi | 84% | 2966 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 49,966 psi | 78% | 2930 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 48,733 psi | 76% | 2848 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 42,815 psi | 67% | 2805 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 84% | 40,770 psi | 64% | 2802 fps | 95.3% |
| Alliant Reloder-50 | <<locked>> | 90% | 44,222 psi | 69% | 2867 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 46,572 psi | 73% | 2835 fps | 97.4% |
| Bofors RP15 | <<locked>> | 80% | 46,514 psi | 73% | 2867 fps | 99.8% |
| Bofors RP30 | <<locked>> | 80% | 39,972 psi | 63% | 2749 fps | 98.5% |
| Bofors RP5 | <<locked>> | 80% | 49,966 psi | 78% | 2930 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 40,147 psi | 63% | 2749 fps | 99% |
| Hodgdon H4831 | <<locked>> | 80% | 51,430 psi | 81% | 2923 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 50,560 psi | 79% | 2907 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 80% | 42,047 psi | 66% | 2874 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,616 psi | 45% | 1752 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 51,721 psi | 81% | 2900 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 80% | 48,051 psi | 75% | 2917 fps | 99.6% |
| IMR 7977 Enduron | <<locked>> | 86% | 50,589 psi | 79% | 2854 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 80% | 31,850 psi | 50% | 2562 fps | 95.4% |
| Lovex S071 | <<locked>> | 80% | 42,902 psi | 67% | 2717 fps | 100% |
| Norma 217 | <<locked>> | 80% | 32,329 psi | 51% | 2589 fps | 97.9% |
| Norma MRP | <<locked>> | 80% | 53,461 psi | 84% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 48,994 psi | 77% | 2936 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 80% | 44,208 psi | 69% | 2802 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,428 psi | 46% | 1795 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 41,800 psi | 66% | 2851 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 38,377 psi | 60% | 2736 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 80% | 53,519 psi | 84% | 2963 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 44,367 psi | 70% | 2808 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 53,171 psi | 83% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 53,708 psi | 84% | 2927 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 47,137 psi | 74% | 2805 fps | 100% |
| Vihtavuori N170 | <<locked>> | 84% | 46,572 psi | 73% | 2822 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 53,490 psi | 84% | 2923 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 52,765 psi | 83% | 3005 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 80% | 44,396 psi | 70% | 2825 fps | 98.8% |
| Vihtavuori N568 | <<locked>> | 80% | 39,334 psi | 62% | 2753 fps | 96.4% |
| Vihtavuori N570 | <<locked>> | 84% | 43,526 psi | 68% | 2881 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 48,950 psi | 77% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 49,777 psi | 78% | 2861 fps | 100% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 48 powders for 7 mm KM Katzmaier loaded with the .284 | 162gr | Hornady SST. ADI AR 2218 delivers the highest muzzle velocity at 3,179 fps; across all powders the maximum-charge window runs from 1,955 fps to 3,179 fps. Accurate 8700 gives the best case fill at 100 %, and 48 of the 48 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 162.0 gr projectile in 0.284" calls for a 1:10.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.