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alanshaffer2000 · July 21, 2014, 08:29 PM

New to reloading and wondering why IMR 4227 (not to be confused with H4227) load data for 357 mag. using 158 gr. SWC is not listed in Hodgdon or IMR official load data, but IS listed in Lymans (#358665).

I'm ready to reload my first batch of 357's, but not willing to lose a finger or damage firearm by not following the manufacturer guidelines. Planning to start @ 12.5 gr. and move up to 15gr. Am I in safe territory here?

My firearm is GP100 6"

http://www.imrpowder.com/data/handgun/357mag.php
http://www.hodgdonreloading.com/

Thanks.

July 21, 2014, 08:29 PM	#1
alanshaffer2000 Junior Member Join Date: July 4, 2014 Posts: 10	IMR 4227 load data for 357 mag New to reloading and wondering why IMR 4227 (not to be confused with H4227) load data for 357 mag. using 158 gr. SWC is not listed in Hodgdon or IMR official load data, but IS listed in Lymans (#358665). I'm ready to reload my first batch of 357's, but not willing to lose a finger or damage firearm by not following the manufacturer guidelines. Planning to start @ 12.5 gr. and move up to 15gr. Am I in safe territory here? My firearm is GP100 6" http://www.imrpowder.com/data/handgun/357mag.php http://www.hodgdonreloading.com/ Thanks.