40XB centerfire date of manufacture

[TW56]

I recently acquired a single shot 40XB heavy 27.5” stainless steel barrel. The barrel has REP proof on right side and 7.62 NATO and a diamond symbol on the left. There is no two letter code on the barrel. Is the heavy stainless steel barrel a Remington barrel?

Serial number is 38290B

Trigger weight is eight ounces with no safety. It has a wide flat bottom stock that is missing an eight inch forend rail on the inletted bottom.

Any idea on what year this came out of the Custom Shop?

[sigef]

The serial number and markings should give someone familiar with the 40-XB records a good starting point, but I’d be cautious about putting an exact year on it from the information here. The lack of a two-letter date code is interesting, especially with the REP proof and 7.62 NATO markings. I’d post clear photos of the barrel markings, receiver, and stock/inletting if possible. Someone who has seen the Custom Shop 40-XB variations may be able to tell whether that stainless heavy barrel and stock configuration are original Remington or a later/custom combination.

[TW56]

Here are some pictures of the REP barrel proof, 7.62 NATO chambering stamp and inspector stamp.

The stock is not bedded and has a short forend hand stop rail slot. The stock had evidence of a 40XB trigger with safety having been previously installed. I have re-installed a 40XB trigger with safety on the acton. It has a White Line recoil pad.

https://imgur.com/a/o5oA5dW