What caliber is it???

[splean]

Hey guys,

My brother passed away and left behind a few custom rifles. There are no markings on the barrels, and I have no idea how to determine the chambering. I know I can measure the bore at the muzzle but is there any way to figure out the chamber dimensions? Any help will be greatly appreciated. Thanks

 

[XLR308]

Cerrosafe alloy and do chamber casts.

 

[BobinNC]

This is the way

 

[hlee]

Obviously, cerrosafe is the answer, but looking through his stash of ammunition/spent brass should get you in the ballpark...

 

[John?]

Cerrosafe and accurate measurements

 

[splean]

Awesome, thanks guys! I'll look into it. I knew the Hide would have the answer.

 

[BJames]

If you didn’t want to do it yourself, pretty much any smith would do that for not a lot of money

 

[Zebulon]

I’m sorry for your loss

Loosing a brother

( I’ve not experienced & have 2) must frankly suck

What is cerrosafe?

 

[hlee]

I’m sorry for your loss

Loosing a brother

( I’ve not experienced & have 2) must frankly suck

What is cerrosafe?

It is a low melting point metal alloy that can be used to make chamber casts.

 

[spife7980]

 

[splean]

I’m sorry for your loss

Loosing a brother

( I’ve not experienced & have 2) must frankly suck

What is cerrosafe?

I appreciate it. Yeah, it's been a strange experience going through his garage.

Thanks again for the information guys.

 

[cas6969]

Chamber casting is the best way, "figuring it out" based on clues works usually, depending on the person and their level of "interest", of course there's always exceptions. When my B.I.L. passed I sold off all his stuff for my sister. One was a rifle with a custom barrel, stamped .280 Rem AI. Here's the 280 Rem AI formed brass, the 280 Rem AI dies, some 280 Rem AI dummy rounds, so it's obvious.

Only after selling it I found out it wasn't. He must have had it re-chambered and never got a chance to start working with it. Oops.

 

[flatland1]

Another reason that doing a chamber cast with Cerrosafe is the definitive/safe thing to do before selling a rifle....