I used to buy these copper scouring pads (no-name brand) and they used to work well for cleaning revolver chambers, and gun barrels from lead fouling. Recently, the ones I've been getting have been scratching my bores. The old ones I used to get really felt like copper and easily bend when folded or wrapped around a bore brush. The new ones I get from Walmart and the like are very elastic and almost feel like steel although the packaging states it's made of copper. My question is this: Is the brand name Chore Boy a better option than these generic brands I get at wallyworld?? Thanks in advance.