Sierra 158 JSP - 357 mag load data needed

[YodaVader]

I picked up some Sierra 158 JSP for use in two 357 mag revolvers and a 10" TC Contender. Anyone have a Sierra manual which lists loads usinf 296,H110 or AA#9? Any info appreciated.

 

[mc223]

http://www.huntingnut.com/index.php

Sign up here and check out the 242 loads for 357 mag in the reloading database.

 

[Doug b]

Sierra 50th. anniversary addition

.357 158 JHC & JSP
O.A.L 1.585"
296 = 15.9 gr. suggested start -17.3 gr. max.
H110= 13.3 gr. suggested start-16.3 gr. max.
AA#9= 12.7 gr. suggested start -14.1 max.
Accuracy load: AA#7 @ 11.4 gr. /1150 fps
Hunting Load:H110 /16.3 gr./1250 fps
Specs 6" colt trooper/1x14" twist
starline cases
CCI-550 prime

 

[YodaVader]

Thanks for the info! I have never tried the Sierra 158s in 357 before.