No part of the boresnake is outside of the barrel, and I’ve tried pliers. I’ve been afraid to use a metal cleaning rod because of damage. Other rods have bent and/or broken.
I have had the string brake off one before just before the muzzle used a pair of pliers to pull it the rest of the way out.
You might try using a cleaning rod and and push it into the pull handle were it loops back into its self. I just tried a .40 cal snake and my cleaning rod will slide into the sleeve fairly easily.
If it is a brass or bronze brush and you have time, soak it with an aggressive copper cutter type bore cleaner. It may dissolve it enough to make removal easier. You could also try placing the muzzle in boiling water. The heat might soften the bristles enough to loosen it’s grip on the bore.
Make a brass or aluminum slug that will just fit inside your bore. Slightly round the ends. Drop it in from the chamber end. Fit a long dowel behind it and whack it good with a ballpeen or heavy brass hammer. Don’t miss and smack the rifle. It will help if you can mount the barrel in a barrel vise to hold the rifle in place while working on it
The bristles made it out okay, it is just the nylon stuck. No part is sticking out of the barrel (no way to grab it). Is there anyway to dissolve the nylon without damaging the bore?
Seems to me that you’d have to pull it out rather than try to ram it out. With the whole thing in there, or a substantial part of it, pushing from the end will just bunch it up and make it clamp tighter to the bore - the harder you hit the dowel the tighter it’s going to clamp. I guess I’d soak the crap out of it with a synthetic oil (lubricity) or maybe some “personal lubricant” (glycerine or glycol-based), then cut the head off a brass or aluminum 8-32 screw and taper it, screw it into an aluminum cleaning rod, screw it into the boresnake from the muzzle and then pull while turning clockwise. Repeat as necessary as it tears out. I dunno…just noodling here. Good luck.
Ok I just tried it with my .22 cal snake. Bear in mind this is just a untested Idea. If you look at were the snake handle is formed were it loops back into its self I can slide my cleaning rod into the sleeve and it goes all the way down to about 2" from the brush at that point it is stitched closed. I would try the rod it would bunch up but it would only be the last 2" before the brush. That might be manageable.
My boresnakes all have a loop an the opposite end from the pull cord. Maybe the OP’s experience is a good reason to secure some paracord through that loop…