All I can say is if you don't need to take out that big screw (sear spring cup) out of the bottom of the receiver, don't!!!
rsv1mos should be along soon.... he's the resident expert on the 550/550-1 rifles. Do exactly as he says and you'll be okay. Been a while since I had mine apart, so don't remember (slept a few times since then).

 

grandparem offers great advice, don't remove the sear spring cup, the large slotted screw on the bottom of the receiver. It's not necessary and can cause great harm if you do.

Remington recommends just removing the receiver plug ("beehive") and it's associated springs, sliding the bolt out of the receiver and removing it's firing pin. Very simple job.

Then flush the action out with gunscrubber or brake/carb cleaner, and blow out with compressed air. Then remove the inner mag tube and the "takedown screw bushing" (the part that the stock screw screws into). Ensure that the carrier/cartridge stop assembly ( the parts that extend out under the receiver and is spring loaded) is up (extended as far as it will go out of the receiver) then lightly tap the outer mag tube and the receiver insert (the part that the outer mag tube goes into) about 1/2 inch back into the receiver. This lets you pry the "floating chamber" recoiling chamber out of it's recess in the barrel. If it's difficult to move just soak it with powder solvent and tap lightly with a drift and pry it out.

Again flush the chamber recess and the action with gunscrubber and clean the floating chamber, bolt, fireing pin and springs. Use a pipe cleaner available at any smokers shop to clean the hole in the bolt that the fireing pin shaft goes into. (I like the ones with inbedded twisted wires)

Scrub the inside of the receiver with an assortment of brushes, flush and blow out again. Ok, this is optional and many folks don't agree with it. But when I'm through with the above, I again wash out the action with hot soapy water then flush with clear very hot water and then another blow out with compressed air while still HOT. Believe me, it's clean then. Spray with Remoil and reassemble.

Easy all the way, and fun to do...

After thoughts: Loosing the screw on the receiver plug retainer (little door on the back of the receiver) makes it easier to unscrew the plug. Then remove it completely before cleaning the action. You will have to pull the trigger to drop the sear when you replace the bolt. Don't forget to replace the floating chamber and the firing pin. I replace the bolt with the receiver pointed down so the firing pin won't back out during reassembly. Ensure the bushing on the larger spring goes into the cavity on the bolt. Spray the plungers on the trigger assembly and the receiver insert (if so equipped, some were not) with RemOil and work back and forth to ensure any water is forced out of those areas. (I do this when I am blowing out with compressed air for the final time). Both have easy access.

More after thoughts: If the sear spring cup has been messed with and is not screwed down flush with the receiver PM me . And as I'm sure you know, ensure the rifle is unloaded before you do anything.

 

I inherited a 550-1 and was wondering if I could ask you some questions directly. I'm not sure how to PM you

 

thanks guys. I'll tear into it tonight and steer clear of the trigger group to avoid any problems. mainly need to clean out the inside of the reciever from lead and powder build up. even being dirty it went through a whole tube of CB shorts with only 2 hang ups, one was a squib the other was probably becuase of the dirt.

 

You can clean up the trigger without causing any problems by driving out the aft (larger) pin and rotating the trigger assembly up and out of the receiver. Don't remove the smaller pivot pin. Remove the plunger and it's spring and blow out the hole with gunscrubber or equivilent. You can also spray the safety assembly at this time. Removing it (the safety assembly) is easy but replacing it is a fiddle.

I remove the larger pin from left to right (with the receiver upside down) as most all of these pins are chamfered on one end only and that end is usually on the left.

If it is firing shorts reliably maybe you just need to blow out chamber with gunscrubber. Just ensure that it moves freely when your finished.

 

I stripped it down last night and cleaned the insides out, it failed to feed about 6 times, so I think I may have tightened the "beehive" too much and maybe increased the tension on the spring, lightly loosened it and it did well. Thanks for the help, I took the shell deflector off, I like the looks of it better, gonna touch up some blue on the reciever where the scope base was mounted and I'll get some pics of it dates 1949

 

Guys, I inherited a 1995 Remington 550-1 that was very dirty and missing the Magazine Tube Rod (Inner Cartridge Rube Assembly). I found an original replacement part online and was excited to put it into the gun and take it out to try out. But, this tube rod won't slide all the way down into the magazine tube so that you can lock it in. Everything is very clean including the magazine tube and the replacement Tube Rod. If I loosen the tiny screw that holds the Magazine Tube on -- I can get the entire Tube Rod in. But, I think that small screw is supposed to be tight. Please share some advice and thanks!

 

Welcome to Rimfire Central Double L!

The member you're quoting hasn't logged in for 2 years.

You can start a new thread or ask your questions here. Plain and simple what's going on and pictures always help,

Cheers,

Frank