"vintage" Remington sportsmaster 512....feed problems...help please.

blueflash

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Im working on a 1950's era .22lr, thats bolt action and with a tube magazine. Its afrom remington sportsmaster model 512. I am having a feed problem with the rifle. Sometimes a cartridge does'nt come up from were they feed in from the tube, and up after I cycle the bolt. Sometimes, I need to only cycle the bolt once, and it will feed properly and chamber a round, but other times I need to cycle the bolt 3 times before it will feed a round up and in. It also seems to not chamber them smoothly, once they have come up. It seems like I almost have to force them in. After I have unloaded the rifle with unused cartridges, I notice that they are a bit bent.

I recieved this gun from someone that probably never cleaned it ever, so the first thing I have done is thoroughly clean everything. This gun is'nt really smooth cycling, and does require a bit of force to cycle, but I do know that I am fully racking the bolt. It appears that nothing is broken, or bent, but I have not ever scene a properly working rifle of this model as a comparison.

From what I appear is the problem, seems to be a timing or adjustment problem with this rifle. There are several set screws on the reciever that can be adjusted, which I think is the problem, but I am not 100% certain what needs to be adjusted, and was wishing that someone on here has experience with.

I have read from doing a search on the internet, that these guns are finicky, and need to be adjusted just right, to make them cycle properly, but I could'nt find any real explanation of what each screws purpose is, and how a adjustment effects the cycling.

Any person with experience with adjusting these guns, and would like to share the secret of making this gun cycle properly ?......please help ? Any suggestions to point me in the right direction are appreciated ? Thanks.
 
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I would first take a cleaning rod and brush, and use it to clean both the outside and inside magazine tube. These rifles were made during the time that waxed and greased ammunition was available, and the stuff rubbed off on the inside of the magazine tubes.
 
Ok, I will give it a try. Ive read alot about the guns being finicky, and require patience to get them set up and adjusted just right, but once they are, they are good guns.
 
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