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1000 Rounds of .357 Mag Ammo by Federal - 158gr JSP

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3 Review(s)

Ammo Overview

Ammo Quantity - 1,000 rounds (50 rounds per box, 20 boxes per case)
Ammo Manufacturer - Federal American Eagle
Bullets - 158 grain jacketed soft-point (JSP)
Ammo Casings - Boxer-primed brass

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Posted On: 10/21/11 By: Rhenda


The answer to your question is "a combination of extra powder and extra marketing." There is no broad definition for what makes a magnum load. In most cases, "magnums" are existing cases that have been lengthened to become a new, more powerful case (for example, .38 Special becomes .357 Magnum). This is also true for .44 Magnum, which was developed from .44 Special. An oddity is the new .327 Federal Magnum, which was developed from a less powerful magnum, the .32 H&R Magnum, which was itself developed from .32 S&W. However, the reverse is sometimes the case. The .500 S&W Magnum was developed as a completely new cartridge, and the .500 S&W Special was developed several years later.

To reiterate, while magnum cartridges have more power (and powder) than their smaller counterparts, there is no set definition for the term.

Posted On: 10/10/11 By: Michael

A: .357 Magnum and .357 Sig are completely different rounds. Marlin 1894s will not fire .357 Sig. .357 Mag is a rimmed, straight wall cartridge, while .357 Sig is a rimless, bottleneck cartridge developed from the .40 S&W case. Thus, the .357 Sig case would be too wide to fit in the tubular magazine of the Marlin. Even if it did, it is not the same cartridge and should not be used interchangeably.

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