If an eye nevus is present, it should be looked at regularly by an ophthalmologist (a doctor who specializes in eye diseases). People who notice a dark spot on the colored part of their eye (the iris) should have a doctor look at it, especially if it is getting bigger.
Follow these basic steps to clean your firearm. 1  Attach the bore brush to the cleaning rod. Wet the brush with powder solvent. 2  Attach a clean patch to the cleaning rod. Add powder solvent to the patch. 3  Put a fresh, clean patch on the cleaning rod. Add a light coat of oil on the patch.
Finally, give the bore a few full length strokes, again being careful not to allow the swab to fully exit the muzzle. After this, the rifle will need two fresh, clean swabs, worked back and forth to remove paste residues. Finally, prep the bore for its next test fire as described in the first three options / methods.