35 Ackley Magnum

Historical Notes:

The original 35 Ackley Magnum was developed in 1939 and was based on the Ackley short 30 Magnum No. 1 necked up to 35 caliber. Later the Ackley short 30 Magnum No. 2 was developed to make possible the rechambering of 30-06 rifles without setting back the barrel. The second 30 Magnum case was necked up to 35 caliber in 1946, and the older case discarded. It is this second version that has become standard and is listed here. In 1959 Norma introduced their 358 Magnum, which for all practical purposes is identical to the 35 Ackley Magnum. There is also an Ackley improved 35 Magnum which has a case length of 2.85 inches, based on the blown out 300 H&H Magnum.

General Comments:

The 35 Ackley Magnum is representative of the 35 short, belted Magnum group, so named because they are based on a shortened case that will work through the standard length action. These cartridges will all deliver ballistics equal to the 375 H&H Magnum, but don't require a special magnum length action or magazine. There are a number of very similar versions, such as the Mashburn 350 Short Magnum, or the Barnes 358 B-J Express and so on. They are all so similar that loading data for one can be safely used for the other, and there is little use in listing all of them individually. P.O. Ackley believes a 35 short magnum is the best and most efficient of the 35 magnums, regardless of who's version it may be. Cartridges in this class are all more than adequate for any North American big game and, with proper bullets, just about any African or Asiatic game as well. Their performance is parallel to the proven 375 H&H Magnum. The Norma version has the advantage of being available on a commercial basis

Source: Cartridges of the World

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