357 Mag Federal 158gr JHP Personal Defense

[RDub01]

Cartridge is from Ammo Manufacture:  Federal .357 Mag
Muzzle Velocity; Advertised:   1240 fps  (No barrel length mentioned)                                                                                                       
Actual Instrumental Velocity  1268 fps;  5" 686-6;  68°F  10' from muzzle
Muzzle Energy; Advertised:    539 ft/lbs



Brass Make/Headstamp:  FEDERAL 357 MAGNUM

Bullet Make/Weight/Construction/Info:  Federal 158grs  JHP;
Actual Weight:     158.8grs.;   .3567" dia.;   .668" long;







C.O.A.L.:    1.560"
Primer:  Nickel;  Federal 200?

Case: Nickel;  1.285";  78.5grs. w/primer;  Base .3758"



Powder Description/Positive ID/Type/Charge Weight:  Flattened Ball;  16.5grs. 








Interesting..  The big three, Rem, Win, and Fed all load their respective 158gr Jacketed rounds with 16.5grs. of a flattened ball powder.

[The_Shadow]

Looks like H-110 / W 296  Hodgdon shows Hornady 158 XTP a max of 16.7 grains for those but their test barrel is 10" and showing 1591 fps 40,700 CUP.