Rem 7400 barrel changes
https://www.GunBroker.com/item/791056329
How hard is it to change a 7400 barrel?
Are the locking lug recesses machined into the end of the barrel or into a separate barrel extension from which the barrel unscrews, or perhaps into the receiver?
How is the gas block attached?
How hard is it to change a 7400 barrel?
Are the locking lug recesses machined into the end of the barrel or into a separate barrel extension from which the barrel unscrews, or perhaps into the receiver?
How is the gas block attached?
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Its gas operated so that could be a factor. I would look for a 3006 take off barrel. 0 -
lots of parts on the auctions 30-06 22" barrels are common to be found ( GB and Flebay )
never changed one but seems simple enought but do some checking also head space ? may come into play0 -
How are they removed? 0 -
quote:Originally posted by SoreShoulder
How are they removed?
Looks to be a pretty simple process.
https://www.youtube.com/watch?v=fJbzjZ2PIzE0 -
There is some good videos on YouTube on how to disassemble a 7400 0 -
There's a barrel retainer nut and corresponding wrench. Getting the nut re-tightened to factory spec may be impossible resulting in the nut loosening frequently. 0 -
I see you bought it, nice.
Let us know how the project goes.0 -
I will be anxious to see if the block which the stud passes through is a part of the barrel or threaded to the barrel. 0 -
Just a thought if you are going to keep the gun. I would remove the broken case and try polishing the chamber and shoot the rifle. Even with the pitting you might get lucky and the gun would shoot well enough to hunt with. I don?t remember these guns being ?tack drivers? when new but offered acceptable hunting accuracy. Good luck!! 0 -
That case will be a bugger to get out. You may have to pull the barrel to get it out because it will have to come through the chamber.
Ricci has a point though.
I would pull the barrel and replace it with a 3006 or 280 barrel because I am not a 270 fan.
My Grandpa had one in 3006 and he killed a lot of deer with down in Mississippi. He hunted down along the River not far from Yazoo city and they used dogs to run the deer.0 -
I would try pouring some melted Cerrosafe in the case and then soaking the chamber with Kroil ant then try driving it out. 0 -
quote:Originally posted by Sam06
That case will be a bugger to get out. You may have to pull the barrel to get it out because it will have to come through the chamber.
Ricci has a point though.
I would pull the barrel and replace it with a 3006 or 280 barrel because I am not a 270 fan.
My Grandpa had one in 3006 and he killed a lot of deer with down in Mississippi. He hunted down along the River not far from Yazoo city and they used dogs to run the deer.
Heretic! Blasphemer!
[:D][:D][:D]0 -
quote:Just a thought if you are going to keep the gun. I would remove the broken case and try polishing the chamber and shoot the rifle. Even with the pitting you might get lucky and the gun would shoot well enough to hunt with. I don?t remember these guns being ?tack drivers? when new but offered acceptable hunting accuracy. Good luck!!
quote:I would try pouring some melted Cerrosafe in the case and then soaking the chamber with Kroil ant then try driving it out.
Absolutely agree with Ricci - PS: MAKE SURE THE ROUND IN THE CHAMBER IS NOT A LOADED ONE BEFORE DOING ANYTHING. Secondly if it is just the rim gone and the cartridge case is empty you should be able to just drive the case out from the muzzle end with a rod that is just under the size of the bore. No need for cerrosafe.
Remove the case and clean the barrel and chamber well. Then you can evaluate what you have. A chamber pitted so badly it will not release the case is not 100% unusual as people don't take of their guns. Removing the stuck case and cleaning the chamber often resolves the problem however. At worst I have had to polish a chamber which isn't hard to do. A clean bore even with a little pitting can shoot very well. (actually I am betting the bore and chamber are just fine and after cleaning the gun will need nothing unless the extractor is damaged)
If you really have to change the barrel used ones in 30-06 should be cheap. The 30-06 guns at one time had a reputation for beating the receiver rails to premature death. Here again I would buy the barrel with its mounting lug and mount it as is. Check the headspace and you will likely find it within shootable specs. If it were mine and I had to discard the 270 barrel I would look for a .243 Win barrel if I was going to keep it. That is a great Deer caliber and will not beat the rails to death nearly as early as the 30-06.
The gas blocks are silver soldered on to answer that question. It should not need removal on a barrel swap.0 -
Well, the barrel's really pitted. I fired two rounds. The first one came out somehow but with a damaged rim.
The second one stuck, even though I had done a little polishing of the chamber with a brush.
The case had extruded itself into several pits covering the first inch or so behind the shoulder.
The stuck case was easy to tap out with a cleaning rod.
I don't know if I'll try to find a new barrel or simply sell it.
Everything else works and the gun looked like it hadn't been shot very much or taken apart.0
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