357 Magnum Load Problem

[RVenick]

I picked up a pound of Power Pistol powder today and want to load some 357 Mag rounds with it. My Lee 2nd edition manual shows a range of 8.5g to 9.2g but my Speer #14 shows 9.5g to 10.5g. I will be using Zero 125g JSP bullets. I will be shooting these loads out of a Ruger GP100 6".

 

[NCsmitty]

Alliant's website shows 10.5gr of Power Pistol as a Maximum load with 125gr Speer GDHP for 1345 fps.
I would start at 9gr and work up if you want.


NCsmitty

 

[loadedround]

Excellent advice from NCSMITTY.