Others Clearing A Plugged Barrel

[Ronno6]

I have a .177cal barrel that is solidly plugged.
Heat did not help.
Only method I have seen ANY movement is using a length of 4mm drill rod in my arbor press.
Very slow and very tedious.
I have moved the blockage maybe 1" rearward from its original spot about 6" from the muzzle.
That still leaves 12" or so to go the breech and exit.

I wonder what would happen if I tapped the muzzle for a grease zerk and pumped in the grease.
Grease guns can exert 3000psi pressure; zerks are good to 10K psi.

Dunno if it would move the blockage or not...

I am not particularly needing to save the barrel, but I would like to have it open so that I can use it for trigger
testing on the rest of the mechanism... I don't want to dry fire...

 

[Playingdead]

Do you know what is blocking it? When you say heat, how much. Lead pellets melt at a much lower temp. I would think it would have to be steel. If that is the case your going to do some damage getting it out.

I think I would rather get some MAPP Gas and really heat the barrel first. If you can melt the obstruction enough to move it. Cleaning rod and a hammer with heat fixes most of them. Even if there are multiples in the barrel. (been there)

I would not tap and use grease as the hydraulic pressure my split a air rifle barrel. The wall thickness is the issue.

Try a threaded rod or rod stock from Home Depot. First try a wooden dowel. Lots of heat if possible as well. Add some penetrating oil on top of the blockage. Kroil works great.

No magic trick I can think of to get a blockage out other than maximum effort.

 

[pan60]

the last one I did for a friend was plugged so solid there was no moving it heat would have work I beleave but I t not want to take a chance on discoloring the barrel so I drilled it out I made a smaller bit and a thin bushing to keep the bit off the barrel and took my time
ended up being six to eight pellet stack and packed and there were there.
one the middle is drilled a wood dawl pushed the rest out
p.s.
hi boss hope all is well

 

[pan60]

p.s.
I would not attempt to hydronic it out even if the barrel didnt split I would bet it would be deformed.
and making a drill bit is not to hard but would most likely will have minimal flutes so take small bits clear it and go again