Don't sweat it mate.
Go buy a good rod that's got a brass guide with it that you stick in the end of the barrel after the brush/jag goes in (from the muzzle), and keeps it centred.
So it doesn't rub on the rifling at the crown.
A brush on a rod, and a cotton patch on a spear jag after, will clean your bore WAY better than those hideous snakes.
If you keep using that bore snake, and it does what May-in-Chyna stuff always does down the track, degrades suddenly, catches you out and snaps in the bore halfway down, and you will regret it.
If you ever get the chance, buy a good carbon-fibre cleaning rod. These things never (cannot) bend like steel rods, and if they do touch the steel of your barrel, just glide over it without wear. Well worth it, buy once cry once.
Opinions are like arseholes though, right? IMHO
