A light-weight grease like TW25B is nice for this. After this place is correctly greased It can be great for Many cycles. Concerning the consequences of rounded rifling on precision, the rifling adds an angular velocity to your bullet so using abrasives close to the muzzle will produce imperfections https://cashjbrfs.aboutyoublog.com/41637800/considerations-to-know-about-telc考试报名