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martinbns

martinbns

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You chambered and fired a 260 remington round in a 25-284?

I found out today, you feel gas and small particles of mystery stuff pass over the side of your face, you have to beat open the action with a rubber mallet and the case splits in half.

I went to the range for the first time since this fall, I brought all the ammo I had left over from hunting season and four different rifles, there were my usual 25-284 handloands and 4 more (or so I thought) in a second box clearly marked 25-284.

My mouse is acting up, I will post pics later from my wifes laptop.

Anyway i now have half a 260 case still in the chamber, and the other half stuck in the bolt face. I have no idea how to get the remaining brass out of the chamber and so far have been unsuccessful with pliers in removing the back of the case form the bolt.

The Barrel appears to be fine from the outside and from just looking at it.

What should I do?
 
Ouch! Glad you are OK.
You do not mention the make of the action. Given the fact that you were not injured, is it a Remington 700?
If it came to it, the bolt could be set up on a lathe, and the face cleaned out that way. Make sure there is no damage to the bolt nose, sometimes they can be split.
You could try a tight brass brush into the broken case, this might grab enough to pull it out. Or use JB Weld to glue a block into the case, and then tap it out with a rod from the muzzle. Some report chilling the barrel, the brass contracts more than the steel, and this loosens the case. Might be easier to get at the chamber if the barrel is removed from the receiver. This would facilitate inspection for damage as well.
 
I'm glad you're OK. I know from personal experience you must be a bit mad at yourself about now. (touched off a .270 win in a 300 win mag once myself) hope your rifle cleans up ok
Dave
 
First talk to your local gunsmith and see if he has a 25 cal stuck case remover. If he does either get him to remove the case or try doing it yourself. One method I've used in the past (from doing dumb things) was to take a cleaning rod with proper caliber jag attached and push out the brass from the muzzle end.
There is a little operation that you have to do first though.
First take the action out of the stock and put it in your freezer. Leave it there for a couple of hours at least. Next, get your rod and jag, with tight fitting patch ready to insert into the barrel "from the muzzle end". Make sure that there is some lube on the patch.
Next, boil a kettle of water and keep it boiling until you're ready to use it.
Now the next steps you have to be ready to work fast, so make sure you've got everything in place and ready to go.
Next, clamp the barreled receiver in your cleaning vice if you have one.
Next, insert the patched rod and jag until it's up against the mouth of the stuck case.
Pour about half a litre of boiling water over the chamber area, being careful not to let any get inside the chamber.
The steel in the chamber area should expand a few thou while the brass will still be frozen and in a shrunken state. This condition will only last for about 15-20 seconds so be quick about putting some force on the rod and pushing the brass back.
I've used this method several times for some of my own screw ups and for a few of my friends. Sometimes you have to repeat the process, usually because the patch isn't tight enough.
An old and missed friend taught me this little trick back in the early seventies, I haven't had it fail yet.
It sounds like the brass has flowed into the extrctor plunger hole and under the extractor lip and into its recess and probably the fireing pin hole. You will probably have to disassemble the bolt and with a little judicious pressure on the half case sides by rocking it from side to side all the way around and again holding it in a vise it should break free, then you'll have to clean up whatever brass is sticking to the surfaces etc. bearhunter
 
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ontgunner said:
Glad you're all good.
I've never tried this, not sure how much room you have to work with, but how 'bout trying a screw extractor?
Be very careful, as these are hardened.
http://i137.photobucket.com/albums/q222/ontgunner/extractor.jpg
Click to expand...

I've used an 'easy out'(screw extractor) to remove a .35 Whelen case from the chamber after a head separation. Before I used it on the case in the rifle, I cut the head off a good case so I could determine which size extractor to use.

When I was ready to go, I put the extractor on the end of a socket extension and inserted the extractor into the stuck case. I gave it a small twist to the left so it would grab the case. Next I used a cleaning rod from the muzzle to tap the end of the extractor and the case/extractor fell out.
 
An update.
When I got the rifle home, it required a weighted rubber mallet to open the bolt, the case just sheared off about half way. A few ddays later I ran a 20 guage bronze brush into the chamber, twisted it and it pulled out the case. Cleaned up the gun, some powder residue in the magazne, cleaned up the bolt face and barrel.

Yesterday, I took a 25kg bag of sand under the receiver and another 25kg bag lying on top of it and pulled the trigger with a string fm about 15 feet back and no problem.

I have now remounted the rings and scope and will see how it shoots. It appears to be fine....ammazing.
 
i would still get it checked out by the gunsmith.

What brand name is the rifle? (who makes the reciever? dont know anyone that chambers in that weird ass cartridge ;))
 
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