Awesome thank you!This is most likely. Shooting lots of slugs will require more maintenance than pellets. So much more surface area in contact with the barrel bore and lands.
When you see your slug accuracy start to drop it is best to stop and clean. Lead loves lead and leading will get exponentially bad very quickly and a lot more time and care will be required to clean thoroughly.
I suggest all serious shooters invest in a borescope whether it be an inexpensive Lyman or Teslong, or the more expensive Hawkeye which is the Pro standard. The goal is to identify the leading, a video unit will do this but don't expect a realistic representation.
These instructions were meant for the Slayer but are applicable to all EVOLS except early Minis with 12 groove LW barrels. If you have a LW barreled Mini clean with a nylon brush not brass and take super care not to damage the crown; these barrels are soft.
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