IOSSO bore cleaner is a good product you may want to try.
Lewis lead remover,or a brush with chore bore pad wrapped on it.with a little job bore paste to finish
The jacket on that ammo is bimetal.Wolf Military classic
The jacket on that ammo is bimetal.
I know Glock states NO LEAD NOSE AMMO because of the polygonal rifling.
Wondering what their opinion is on bimetal.....