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Old December 6, 2012, 04:43 PM   #9
Senior Member
Join Date: September 15, 2009
Location: Phoenix, AZ. 30 miles from water, two feet from Hell.
Posts: 355
Heat here in Arizona and ball powders

I load all ball powders, except several rifles that don't like it.
Here in Arizona where it can get to 120 and in a vehicle up to 190 degrees!
I load in the winter, to day its 82 degrees, and when I shoot in the summer High Power Matches CMP i don't see a lot of difference out of an M14. When I was shooting off a cement bench I would see more of a difference in groups would open up a little.
My friend said he saw more pressure signs but nothing to blow his gun up.


Hope this helps?
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