Copper Fouling on Sierra and Hornady Bullets

Reloader222

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Jun 4, 2010
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South Africa Limpopo
I have found that there was a significant more copper fouling in my .270Win with which I mainly shoot Hornady Interbond Bullets. In my .222Rem with which I mainly use Sierra Game King bullets there is a significant small amount of copper fouling. On a percentage basis I gues it 70% more on the Hornady Interbond Bullets. What is your experience? I base this on the amount of times I had to apply the Copper remover (Hoppe's Copper Terminator).
 
The bad bullets for me are Remington bullets.
I think the jackets are soft pure Copper.
 
My cooper problems have been with Hornady BT's in my 280. I'm gonna try some CFE223 powder and check for accuracy/velocity/fouling elimination.
 
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