Gunnutz,
New shooter trying out new ammo. What is the difference between copper and lead cover? Is there one that is better performance wise? I am under the impression that lead leaves more residue but easier on the barrel and copper less residue but is harder on the barrel? Appreciate any insights. If there is a thread kindly post link but I don't need the "use the search" comments, it doesn't always work.

I will be shooting Sig Sauer Mosquito, GSG 1911 and Mossberg Tactical flattop
Thank you!
New shooter trying out new ammo. What is the difference between copper and lead cover? Is there one that is better performance wise? I am under the impression that lead leaves more residue but easier on the barrel and copper less residue but is harder on the barrel? Appreciate any insights. If there is a thread kindly post link but I don't need the "use the search" comments, it doesn't always work.

I will be shooting Sig Sauer Mosquito, GSG 1911 and Mossberg Tactical flattop
Thank you!
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