Remington 510 Target Master Owners

T

Texas Blues

New member
Howdy folks, I have a question for any Remington 510 owners, (or anyone else that might know). Near the end of the barrel in the bore, I have two rings that run the circumference of the bore about 1/4 apart. The closest one to the end is deeper that the other. The rifling seems to run right through the rings. Can someone please tell me what they are? They look too perfect to be some sort of defect. Here's a couple of pics, wasnt easy to get a good pic, but you can see the groove/rings. I just bought this today, and I have never seen anything like that in a bore before. It looks to be a 1941 model with a BK stamp on the barrel. Also, the barrel is stamped 22s, 22l, 22lr. Any thoughts? Thanks, TB
 

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Optical illusion.....In the old days barrel makers would use these rings to straighten the barrel by aligning them. Look down a clean shot gun barrel. The rings will look lke what you are seeing only much larger. Must be done off the gun a safely of course.
 
I have the Scoremaster 511, which is the same gun but with a 6-shot magazine. I looked down the barrel and did not see such a mark. As a side note, this gun has fired so many rounds (S, L and LR) back in the 50's that it has lost some of its accuracy.
 
That is almost certainly an artifact of a blocked barrel. When the fired projectile reaches the obstruction, the momentary pressure spike is enormous, and burns/blows a ring into the barrel.

You'll be able to find further information elsewhere.

Do you know the full history of that rifle? what is it, 40 years old? (edit) never mind, it's 70 years old, and of course you bought it used.

at some time, I suspect, old ammo was fired through it, a squib load left a slug in the barrel, and the second round blew it out, leaving a ring. It is conceivable that the person actually did it twice while shooting the entire box of defective rounds, leaving two rings.

That is about where a charge of priming compound alone would have left a .22 lr bullet in the bore.
 
The BK stamp on the barrel is probably the date of manufacturer. B=Jamuary; K=1941. Remingron used 2 or 3-character date codes.
 
I ran a plastic shaft with a small L shape at the end down the bore. The groove/ring is there, as you can see the plastic dip into the groove as it passes the groove. It does not dip much but noticable by eye. Im guessing that there has been many many rounds fired through this thing since whatever happened to the bore. What effect is this groove going to have on the round as it passes the groove? Seems like it would effect accuracy in at least in a small way. Or more importantly will it cause the round to get stuck?

I have ran a few shorts through with no problems. I did however run a few Aguila powderless longs through it and the round only went 1/4 of the way down the bore and stopped (one made it out, two did not). This was nowhere near the grooves so I dont think it was related. I shoot the Aguila rounds in my remy 552 and my marlins and never have the rounds not exit the bore. I of course am always carefull to insure that these type of rounds do in fact exit the barrel as they are only rated a 500fps. I guess that some rifles will just not handle those rounds well. But back to the bore, is it ruined? I hate to return the rifle, but there are more out there to be had.

Thanks, TB
 
Hmmmm check this out, while browsing Gun Brokers, I found this 510 barrel for sale. This is what part of the description says.........

"This one is pretty Ugly, it shows wear and a lack of blue, Bore shows lots of wear, a few inches in from the muzzle there is a 360 Degree ring like there might have been a bullet stuck there and maybe another joined it there but can't distinguish a bulge on exterior. Whatever it is it's there and it comes with the barrel".

Thanks, TB
 
First, the aguila are not meant to be used in a rifle. I believe that the warning is on the box somewhere. In fact, this is essentially what happened to your rifle. a bullet blocked the bore after a squib round, one that had either only priming compound or a small amount of the powder charge ignite. The following round fired properly, and formed the two rings. There are other possible blockage causes, but a squib is the most likely one in a .22.

These rings will generally not affect accuracy in a .22. If the rifle won't group, it is most likely not the rings that caused it, but other factors. it is still shootable.
 
Thanks Brian, yea, I know Aguila powderless are not meant for rifle use because of the low velocity, you have to pay attention to what you are doing. Maybe someone was not paying attention and did as you say. I wont worry about it much then, if it is safe to shoot. Like I said it did shoot the higher velocity rounds ok, but have not yet checked the accuracy. Once I saw those rings, I got concerned and havent been back out with it yet. I bought it cheap, and probably will be able to find a replacement barrel if I need to. Was looking for a single shot 22, and I knew these were good older rifles, so I was looking for this model in particular.
Would you have purchased this rifle if you happen to notice those rings before you boufght it? I mean would it prevent you from buying a classic so to speak?

Thanks, TB
 
No, it would not have stopped me. Not at all.

I happen to have one. The old beehive bolt is my favorite part of it.

Mine will, no kidding, give me 2 inch groups at 100 yards when wind is right, and ammo is right. I have a redfield 3-9 1 inch scope on it in a custom mount. They are nice rifles, and unless the bore is ruined, as long as you can live with the rest, they are great nostalgic squirrel poppers.

Consider relining the bore; you can even reline it to .17 cartridges. Seems to me that you can get bore liners for less than $50 from brownells. A bore bit will cost around $100 and you can do this job yourself, or have it done.

I took mine out of the factory stock, and replaced the factory with a duplicate from fajen decades ago. The stock has a beautiful tiger tail grain in the forearm. Love that gun, it was my father's. I'll post a pic later.

What I can suggest is the Acorn rounds, instead of the aguila. The acorn rounds, while very expensive, nail the nuts off of a squirrel out of a rifle. They are enormously more powerful than an aquila colibri.

For a while, I used this rifle, a laser sight, and acorn caps for squirrel control around my home. They never let one get away. The laser allowed me to hunt with a little more stealth.
 
I believe these rings were made during the manufacturing process. One of my 510's has them as well as a 550 we have at the gunshop. I've only seen this in Rem. rimfires from this era in. The cuts are too square for me to think that they were gas cut. They have all been about 4" from the end and about 1/4"-3/8" apart.
 
I have seen these rings on numerous rifles and none showed any signs of bulging. One of my Marlin 336s (1959) has two perfect rings near the muzzle as does my Remington 510 TargetMaster (1952).
 
Well there is a definate bulge where my ring is. Still shoots ok though.
Para, do you know why a mfg would put such a ring in a bore? I have seen 5 or 6 510s' with no rings. Why would they choose a specific 510 to put a ring in? One guy said he had seven rings in his .22 cal winchester, lol. I've let that go though, have already ordered a different barrel in case I need to change it in the future. But for now, it shoots fine and seems to be quite accurate. I am also hunting down a bolt assembly and maybe a reciever for future repairs.

Thanks, TB
 
Any kind of ring inside a bore, especially near the muzzle, can't enhance accuracy, whether it was done in manufacture or later.

I'd first try to buy a new barrel that will fit. Try Gun Parts Corp. If that doesn't work, you may want to have the barrel cut and re-crowned and a new dovetail cut for the sight. The old crown looks pretty rusty, it's possible the bore got plugged with dirt before it was fired; maybe more than once.
 
Agreed Picher, I cant see any reason to purposly put one there. And I already have ordered a replacement barrel from Numrich, it will be here tomorrow. Like I said though, there is no hurry to change the barrel, as it shoots fine. Also found another source for a bolt assembly, just to have one on hand. The crown is not as bad as it appears in those photos, its old for sure (a 1941 model) and it cleaned up ok. My camera is very good at enhancing the rust look. Some photos of my other guns make them look like they are completely rusted, when its only the bluing missing or stains, specially if I use the flash.

Thanks, TB
 
Looks more to me that somebody, some time in the life of this oldy, took a screw in bore sighter and tightened it too tight leaving the expanding wedge marks in the soft barrel of that 22. I'm remembering that the old Bushnell bore sighter had the multiple wedges that expanded with a screw.
 
It's there because of any number of manufacturing process flaws, it's probably been there from new and for that type of gun may not do anything except give you heartburn. If the gun shoots OK I'd just live with it.
 
Yes, am living with it. It shoots fine. The barrel is bulged slightly around the ring on the outside of the barrel, probably as a result of a squib round and then beind forced out buy the next good round. And that info about the barrel being bulged probably was not mentioned in my original posts, as I didnt even notice it until someone said to look for it. Although there could be different causes for this, I wouldnt think the mfg would let it go out the door with a buldged barrel. At any rate, I have moved past worrying about it, and agree it was a result of a blockage as others have suggested. Have been shooting it with no problems. And I will have another barrel to put on at a later time if I need to.
Thanks for all the input, TB
 
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