Help i broke my 870

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Powell

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So before you all flame me for beating on my gun with a socket and hammer I relize that I am a dumb a$$. I tried to ues the socket method to remove the dimples. I failed because I used a socket that was the correct diamater but then tapered up to a larger diamiter. Now the tube is slightly flared and does not accept the extention tube. I know that it is close because the barrel will go back on with a little effort. I know somone has done this how did you fix it?
 
I have not done this specific thing, but my approach would be to find a socket (not tapered), or some other solid round object that closely fit in the inside the magazine tube. I would then use a wooden or rawhide mallet to gently tap the flared material back into place. Not saying this is the best method, or even that it will completely fix the problem, just that it would be my first approach.
 
There's a mandrel made (Brownells stocks them) to remove dents from Remington magazine tubes- if you can find someone who has one (likely a gunsmith) you might be able to resize the magazine tube to fit the extension properly.

IMO IF you're going to mess with DIY dimple removal- DRILL 'EM OUT! The barrel ring covers the area and the resulting oblong holes don't hurt anything.

Or adopt my solution- just don't buy newer Express guns with dimples in the first place.

lpl/nc
 
Then you run a really good chance of messing up so badly you have to send your receiver back to a factory level repair center to get a new magazine tube installed. That won't be fun...

Cut your losses, take it to a 'smith, and see if it can be fixed. Whacking off a little bit on the end is IMHO a genuinely bad idea.

The only serious weak spot in the whole 870 design IMHO is the magazine tube. It's a genuine pain to get it replaced. That is why I continue to beg 870 owners not to fritz around with their mag tubes any more than necessary, to use clamps on magazine extensions, etc. You get one good screwup and that's it, all too often.

Hope it all works out OK for you,

lpl/nc
 
I squeezed a mag tube out of true once. It was on a Franchi 28 ga. The smith said that he tried the mandrel to no avail. Gun went back to some company approved place. Mag tube had to be replaced.
 
I've used the socket method and was successful. If I were to do it all over again I would use a drill or a dremel. Using the socket method you also run the chance of cracking the silver solder that holds the tube to the receiver.

If you do decide to cut the tube, cut very little at a time, maybe using a file...... I dont know, I cant think of any other way to get the tube "unbowed". My thoght is if you tamper with it any more its just going to get worse... If it were me I would call Remington and tell them what you have done and ask what it would cost to fix? Maybe they can just replace the tube itself with a non dimpled tube, then you would hit two birds with 1 stone. Either way your going to put out cash to get it fixed so why not do it the proper way? Call a certified Remington gun smith, he also might be a good help?
 
One last thing to try perhaps is to slide a socket into the tube and then using a converted pipe cutter you might be able to roll the flare out of the tube.

Converted pipe cutter is one that you remove the cutter from and replace with a roller so that you are rolling the tube between roller systems.

No - I would not try cutting the tube off - take to smith before drastic measures turn into extra expensive failures.
 
That might be the best $30 you've spent in some time. I'm glad he was able to rescue the situation for you.

Be sure to use the clamp that came with your magazine extension when you install it. Now you know the trouble that can come with damage to the magazine tube. You want to avoid more.
 
he did take a little metall offof the end then ran rubbing compound throught the rest of the threads it is not 100% like new but it threads well and works. i'll take it for $30 cause to get it fixed at factory level (replace mag tube) was $150
 
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