7x57 Graves Improved Tight Neck

[blboyd]

Guys I need some help....

I had a rifle fall in my lap from a friend... Father-in-law passed away and was an avid collector...

This is a Ruger M77 rebarreled into 7x57mm Graves Improved Tight Neck. I have a couple pieces of brass and they look like an Ackley Improved but the barrel is stamped Graves Improved Tight Neck.

Has anyone heard of this caliber or have any info on it?

Thanks in advance!
Brandon

 

[bohem]

Re: 7x57 Graves Improved Tight Neck

Sounds interesting, do you have a way to take a chamber cast?

Wish I could help you more.

 

[Jerry m]

Re: 7x57 Graves Improved Tight Neck

Have your friend look for the reloading dies for that one.

Is the barrel marked with the gunsmith's name? May you could contact them for chamber dimensions.

Good Luck

Jerry

 

[blboyd]

Re: 7x57 Graves Improved Tight Neck

I haven't dismantled the weapon yet to look for the smith's name. It could be on the bottom of the barrel where you can't see it with the stock on.

I haven't done a chamber cast yet. I do have a couple pieces of fireformed brass that came with it.

Thanks for the help guys!
Brandon

 

[KaiserNorton]

Re: 7x57 Graves Improved Tight Neck

Is it formed from "regular" 7x57 brass? If so, and assuming your friend cannot locate the loading dies, I'd have your few pieces sent off to one of the Reloading manufacturers (RCBS, Hornady, etc) and have a die set made. You can have them custom made to your brass if you supply them. It will cost you, though. I would guess that is is just a 7x57 AI, only with a tight necked chamber. But I have been wrong before.

Kaiser Norton