Originally Posted by JohnLittleTree
Instead of putting my facts on the sight so other's can write it off as opinion let me ask you this!

What is the hardness of your average steel centerfire rifle barrel?

What is the average hardness of copper alloys used to jacket lead bullets?

Do you have to break in the chamber by expanding 70/30 brass cases into it? Oh and so you know the 70% is copper the 30% is zinc.

What causes most barrels to be shot out? Is it rifling wear to the lands or groves? Is it throat and crown erosion?

What causes throats to erode and crowns to erode?


I will ask one more question: What will a softer metal (copper jacket, lead core) do to steel once it is accelerated to 3000 FPS?

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