U.S. marked clip slotted 40x action?

[USMCSGT0331]

I'm convinced PT&G put the 40X on that receiver. It doesn't look like any other 40X marking, and as you noted, it's a Remington 700 serial number. I doubt they are messing with serial numbers.
DW

It could very well be that PTG welded up the 700 and remarked it with 40-X. Here's the OP's PTG receiver, notice how long the dash between the 40 and the X is, that's not normal. Also notice how there's no registered trademark symbol to the left of the word Remington. All of the regular 40X receivers I've seen (not including the laser engraved 40X-BR receivers and the titanium receivers) have the registered trademark symbol to the left of the Remington marking. I cropped this image to focus on the markings, but if you look at the OP's photos in this thread, his receiver lacks this registered trademark symbol.

Here's one of the earliest 40X centerfire receivers I've come across, notice how the serial number doesn't have a letter suffix (it's early):

Other early Remington 700 and 40X receivers have the word Remington underlined, that's a dead giveaway to the receivers being pretty old (1960's and 1970's vintage?), and they have the smaller size dash between the 40 and the X:

And some more recent Remington 40X receivers that don't have the word Remington underlined. These receivers still have the registered trademark symbol, and thry have the smaller size dash between the 40 and the X:

Even the old .22LR Remington 40X receivers have the registered trademark symbol to the left of the Remington marking, and the smaller size dash between the 40 and the X:

40X receiver without a serial number in the photo. Notice the registered trademark symbol to the left of the Remington marking, and the smaller size dash between the 40 and the X:

Here's the OP's receiver markings vs. the markings on the 2 original XM3's that I've owned:

Remington had different variations of the Model 700 markings, so I'm not going to post a bunch of photos of them. Just notice that the OP's receiver is in a similar serial number range as my two XM3's, but it lacks the Model 700 marking. Either Remington really messed up this receiver, or PTG welded up the 700 and marked it with 40-X (or more accurately 40------X).

 

[USMCSGT0331]

Damn, looks like a few of us had the same idea for a post at the same time! Well done, gentlemen!

 

[USMCSGT0331]

I agree. Stainless 700 receiver, filled and remarked “MODEL 40-X” Or possibly never marked 700 if it was from a bankruptcy. If it was manufactured and put on the books as a Model 700, would changing that be a problem? Similar to altering a SN?
Check the size and placement of the ‘MODEL 40-X” on these rifles. Yours almost looks like the MODEL 40-X is touching the Remington. Also the alignment is not the same. These are from rifles for sale online.

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Again, not piling on, but the more facts and references we post, the less likely someone else gets taken.

Greg

You make a good point about the Model 40---X alignment on OP's receiver vs. known Remington original 40-X receivers.

Here's the OP's receiver (top) vs. an original Remington receiver that's unmodified (bottom). You can check the markings on OP's receiver vs. all of the unmodified Remington 40-X photos that are in this thread. There's only 1 single lone receiver that's photographed in this discussion thread that is different than all the rest. On OP's receiver, the R and M begin at about the same point on the receiver. All the other receivers that aren't from PTG show the M starting at about the middle of the R. I hope this makes sense, but this is not looking good for the PTG receiver:

 

[Jrb572]

There is no trade mark on my Remington SS receiver

 

[Jrb572]

Also just checked a few XM3 on the CMP. The S action must not have the trade mark thing.

 

[USMCSGT0331]

There is no trade mark on my Remington SS receiver View attachment 8596299

That's because the Model 700's didn't have the trademark, only the 40-X had it. Since the trademark is missing on OP's "40---X" receiver, it stands to reason that it's a remarked Model 700 receiver (alone with other defining characteristics).

 

[USMCSGT0331]

Also just checked a few XM3 on the CMP. The S action must not have the trade mark thing.

No Model 700 had the trademark, only the 40-X receivers had it.

 

[Jrb572]

That's because the Model 700's didn't have the trademark, only the 40-X had it. Since the trademark is missing on OP's "40---X" receiver, it stands to reason that it's a remarked Model 700 receiver (alone with other defining characteristics).

Ah got it
Learned something new. I guess I’ve never owned a 40x to see the trade mark logo

 

[Pondskipper]

Well I talked to my gunsmith earlier and he did tell me it’s for sure carbon steel and when he blasted the exterior before applying cerakote he didn’t see anywhere on it that would suggest it was welded or tampered with in that regard, he did tell me that you could visibly tell the letters US were definitely different and done at a different time from the rest of it and he also uncovered in the notch for the bolt handle on the action body where it’s got a laser etched label code in it

 

[Pondskipper]

The code in the bolt handle cut is the data matrix type.

 

[Pondskipper]

Another valid point he made was that it’s a federal offense to alter the make model and serial number of the receiver because it is tampering with the forward and backward traceability in terms of ownership and point of origin, and since he saw no signs of that other than someone clearly adding the U.S. markings over the serial number which he 100% thinks ptg did themselves along with that excuse for a clip slot job. He believes it could have very well been a screwup on Remingtons part with it having a 700 serial number but 40X on the body and was likely just never put out into circulation because of it. In the grand scheme of things I guess it doesn’t really matter, will still be a fun rifle either way but I do plan to make this known for everyone else in the future in a very public way. I for one won’t ever do business with them again.