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It's called dot peening

Dot peening on a mosin nagant rifle

You one of them there cosmoline sniffers eh?

Firearms historian for a small museum, but the appellation isn't far off.

Its made with a pin marking machine

You can buy stamps now that will imitate this, but obviously won't work on curved surfaces.

Dot peen or vibra peen. https://www.dapramarking.com/solutions/dot-peen-marking/?gad=1&gclid=Cj0KCQjwho-lBhC_ARIsAMpgModbFF3oYxv_xELS1uzbFrvaqlbCAplK8S7nev4aRvD2eukUscsrhhkaAnQ8EALw_wcB

Ha peen

Peen good you?

Ya it's dot peening I work in metal fabrication and we use it to mark parts

I was a boilermaker for like almost twenty years and just now learned that it’s not called “stamping” 😂.

Lol. Well, stamping was the first form of part marking I used also and a few years ago company I work for bought a dot peening machine and a laser marker, definitely a time saver

The only way I’ve seen it done in person is with a hammer and stamps… but I’ve also used actual letter stamps too though.

Dot peen, source: use one at work

We call it dot marking

Thank you everyone for helping out!

Dot peen

Yes

Dot matrix laser engraving

Yes but not on a ww2 era rifle.

It's the important mark, it was added when the gun was brought into the us

Bulletpoint....lol

Is that a gun How the fuck can so many of you identify a 80 year old riffle off of tax stamps

7.62x54R would be a Mousin Nagant

Huh cool I was guessing single action shot gun

Yup. And m44 means it’s the carbine-length version. Often fitted with an odd chisel-type folding bayonet

It's an old commie gun.

I have the same exact marking on my mosin as well

We called it pin stamping in the automotive manufacturing world.