fireforming 458 win mag

chet

Handloader
Mar 10, 2006
554
0
howdy y'all!!!
I was wondering what the fine fellers of this forum know about fireforming 458 from 300wm?
I have been searching and studying...... and I have a few particular questions.
I have a surplus of nickle plated brass that I'd like to use for this.
I plan on annealing the neck and shoulder before forming.
bullseye, malto meal, and a bar of soap will be the recipe.
I'll build a jig so I can saw off most of the extra length (dont wanna wear out the trimmer).
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questions:
1) will the nickle brass hold up ok while annealing? I know it will discolor, I'm ok with cool colored brass 8) (I've never annealed nickle, but I have annealed brass)
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2) will the nickle hold up to the stretch? .308 to .458 is a long ways!!! will the nickle plating just flake off?
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3) should I just stick with good ole brass? I got plenty, but I'd prefer to keep it for my 300whinny!
 
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