Hello, and welcome to the Reloading Podcast here on the Firearms Radio Network.
Tonight the guys are answering more questions.
Cartridge Corner:The .357 S&W Magnum (9×33mmR), or simply .357 Magnum, is a revolver cartridge with a .357-inch (9.07 mm) bullet diameter. It was created by Elmer Keith, Phillip B. Sharpe, and D. B. Wesson of firearms manufacturers Smith & Wesson and Winchester.
It is based upon Smith & Wesson's earlier .38 Special cartridge. The .357 Magnum cartridge was introduced in 1934, and its use has since become widespread. This cartridge started the "Magnum era" of handgun ammunition.
The .357 Magnum cartridge is notable for its highly effective terminal ballistics when used for hunting or defense. Designer Elmer Keith, Phillip B. Sharpe
Designed 1934 Introduced 1935
Parent case .38 Special
Case type Rimmed (R), straight
Bullet diameter .357 in (9.1 mm)
Neck diameter .379 in (9.6 mm)
Base diameter .379 in (9.6 mm)
Rim diameter .440 in (11.2 mm)
Rim thickness .060 in (1.5 mm)
Case length 1.29 in (33 mm)
Overall length 1.59 in (40 mm)
Case capacity 26.2 gr H2O (1.70 cm3)
Primer type Small Pistol Magnum
Maximum pressure 35,000 psi (241 MPa)
Bullet mass/type Velocity Energy
125 gr (8 g) JHP Federal 1,450 ft/s (440 m/s) 583 ft⋅lbf (790 J)
158 gr (10 g) JHP Federal 1,240 ft/s (380 m/s) 539 ft⋅lbf (731 J)
Test barrel length: 4 in (102 mm) (vented)
Robert Brewer posted; Who's load data do you use for load development? Bullet manufacturer, Powder manufacturer, or other reloading manual. It seems like Hodgdon’s data is always much higher than the bullet manufacturers. And he posted again: “Is it common to see a drop in velocity as you move closer to the lands when adjusting seating depth?”
Roger A Buettner posted; Enjoy listening to the show. I listen at work after the bosses go home. Please remember that some of us work 2nd shift and can’t watch live. (Big Shout OUT to Roger!)
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