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.17 Magnum (Ackley) / .17-222 Magnum (P.O. Ackley Data) |
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Warning! Notes: Standard twist: 10"; Special twist: 11", 12". The .17 Magnum cartridge is simply the .222 Remington Magnum case necked down to .17 caliber without any other change. It has been showing some surprising results and easily produces velocities of over 4000 fps with the 25 grain bullet. It seems to be best when loaded with powders of medium burning rate such as 3031. The following loading data was developed in one test rifle which means that the maximum loads listed may be too hot for some other rifle. It is obvious, however, that it is possible to safely use loads in most any rifle and develop over 4100 fps with the 25 grain bullet. Barrel length of test gun: 25". (Handbook for Shooters & Reloaders/Vol. 2 - P.O. Ackley, 1966) NOTE: USE THIS DATA WITH EXTREME CAUTION |
Be Alert: Publisher cannot be responsible for errors in published load data. |
Wt. | Bullet | Powder Manufacturer | Powder | Charge | Velocity (FPS) | |
20 | IMR | IMR-4198 | Subscribe | 4233 | ||
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20 | IMR | IMR-4198 | Subscribe | 4255 | ||
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20 | IMR | IMR-4198 | Subscribe | 4326 | ||
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20 | IMR | IMR-4198 | Subscribe | 4762 | ||
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20 | IMR | IMR-3031 | Subscribe | 4148 | ||
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20 | IMR | IMR-3031 | Subscribe | 4165 | ||
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20 | IMR | IMR-3031 | Subscribe | 4348 | ||
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20 | IMR | IMR-3031 | Subscribe | 4484 | ||
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20 | IMR | IMR-3031 | Subscribe | 4672 | ||
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22 | Norma | N-203 | Subscribe | 4048 | ||
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22 | Norma | N-203 | Subscribe | 4133 | ||
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22 | Norma | N-203 | Subscribe | 4255 | ||
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22 | Norma | N-203 | Subscribe | 4426 | ||
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22 | Norma | N-203 | Subscribe | 4505 | ||
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22 | IMR | IMR-4198 | Subscribe | 4082 | ||
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22 | IMR | IMR-4198 | Subscribe | 4133 | ||
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22 | IMR | IMR-4198 | Subscribe | 4444 | ||
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22 | IMR | IMR-3031 | Subscribe | 4388 | ||
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25 | Norma | N-203 | Subscribe | 3704 | ||
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25 | Norma | N-203 | Subscribe | 3922 | ||
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25 | Norma | N-203 | Subscribe | 4062 | ||
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25 | IMR | IMR-3031 | Subscribe | 3650 | ||
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25 | IMR | IMR-3031 | Subscribe | 3942 | ||
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25 | IMR | IMR-3031 | Subscribe | 4000 | ||
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25 | IMR | IMR-3031 | Subscribe | 4050 | ||
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25 | IMR | IMR-3031 | Subscribe | 4187 | ||
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25 | IMR | IMR-4320 | Subscribe | 3850 | ||
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25 | IMR | IMR-4320 | Subscribe | 4050 | ||
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25 | IMR | IMR-4320 | Subscribe | 4125 | ||
Remarks: | ||||||
25 | IMR | IMR-4350 | Subscribe | 3774 | ||
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25 | IMR | IMR-4350 | Subscribe | 3820 | ||
Remarks: | ||||||
25 | IMR | IMR-4350 | Subscribe | 4000 | ||
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25 | IMR | IMR-4350 | Subscribe | 4066 | ||
Remarks: | ||||||
25 | IMR | IMR-4350 | Subscribe | 4111 | ||
Remarks: compressed |