Gunsmithing Strange pin in the bolt head of my 700 Remington ? Two part question

[Easy_E]

I hope this is the right area for this type question ? I bought this six digit Remington for a donor action and found some interesting things ? It was remarked .358 win on the barrel and I noticed the proof marks under the scope area. I pulled the stock and the factory markings reading .243 are crossed off and turned under the handguards. Is this a normal thing re rifling a barrel to a larger caliber ?

The second question is there is a pin through the bolt head and ground off ? It looks like it sticks up more inside the bolt head to maybe center the case more ? I'm not sure but thought the .358 had the same size as the .243 ?

Here's some pictures of this mess.

 

[Niles Coyote]

Thats a riveted in extractor, I have a 308 with one. Looks like you have a hart barrel as well.

 

[Victor N TN]

Part #1 I don't know. I have never had a barrel re-bored and re-cut or lined.

Part #2 Do you want to use a pocket knife to get your fired brass out? I believe that's the pin that holds the extractor in place.

 

[Easy_E]

Thanks for the replies I looked at the other 700 ' s I have and didn't see that rivet ? Is this something on early models ?
The reason for the questions I don't want to ship the parts to a smith only to find out they won't work.

 

[Easy_E]

Niles does that mark mean it was a hart barrel ? It would be sad unless it was shot out .

 

[Gene Poole]

Thanks for the replies I looked at the other 700 ' s I have and didn't see that rivet ? Is this something on early models ?
The reason for the questions I don't want to ship the parts to a smith only to find out they won't work.

Yeah, older models had the riveted extractor. I don't know the cutoff, but it was in the 70's sometime that remington went with the spring-clip extractor if I remember correctly.

REMINGTON 700-STYLE RIVETED EXTRACTOR KIT | Brownells

 

[eddieharren]

That stamp of a heart does not indicate a Hart barrel. Remington used that as an inspectors mark for years. The barrel appears to be a 243 barrel that was re-bored to .358.

 

[DAVETOOLEY]

That stamp of a heart does not indicate a Hart barrel. Remington used that as an inspectors mark for years. The barrel appears to be a 243 barrel that was re-bored to .358.

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