This may be a dumb question, but do Winchester white box JHP's deposit copper at all? Because I'm trying to decide if it's necessary to buy a separate copper remover solution on top of the regular powder fouling cleaners like Hoppe's 9? I'm going to be specifically using the WWB 147gr JHP's (USA9JHP2).
Indirectly, I'm basically asking if JHP's in general deposit copper.
Here's a link to the product if you guys don't know what it is:
Winchester USA Centerfire Pistol Ammunition USA9JHP2 9 MM For Sale