Hendo
(.224 member)
28/05/20 02:57 PM
Chamber resleeve advise needed

Hi All, I have recently acquired an interesting little single shot, falling block action rifle chambered for .300 rook.
It has Belgium proof marks and has been reblued at some stage in its busy life. Unfortunately, the over enthusiastic polishing has left no hint of who the manufacturer is, (the proof marks are under the forearm, the only part of the octagonal barrel that's been left alone).

It looks like a previous owner has run out of Rook ammo and used something very much shorter (32 Colt??) because the chamber is badly eroded about halfway down , making it very difficult to eject a spent case.
My choices are either (1) resleeve the whole thing to 32-20 or more likely 25-25, a very costly exercise. or (2) find a gunsmith in Australia who can resleeve the chamber in the original cartridge chambering. This is preferred because , apart from a small patch of corrosion, the rifling looks quite good. and half the fun of these old workhorses is shooting them as they were originally.
So my question, Does anyone know of or can recommend a gunsmith in Australia who does this sort of work ie resleeving chambers


Hendo
(.224 member)
28/05/20 03:31 PM
Re: Chamber resleeve advise needed

[image]https://imgur.com/CeyVQHV[/image]

Hendo
(.224 member)
28/05/20 03:33 PM
Re: Chamber resleeve advise needed

Sorry folks, Haven't quite got the photo process sorted out but I am determined to.

93x64mm
(.416 member)
28/05/20 10:33 PM
Re: Chamber resleeve advise needed

Yes you can get brass & dies
Follow the links
https://www.northernshooterssupplies.com.au/300-Rook-Unprimed-Brass-Cases-p/300rk.htm

I have to agree with you there Hendo - what would be your load?
Also it is a .300" projectile - casting will be in order, or will you resize .32-20 pills?


DoubleD
(.400 member)
29/05/20 01:33 AM
Re: Chamber resleeve advise needed

https://i.imgur.com/CeyVQHV.jpg

How's this.



I had to resize your image as it was far to large to be seen properly on the board.

While from a collector stand point keeping this all original would be preferred, from a shooters view, relining would be the better way to go.

I doubt you will be able find a gunsmith with .300 reamer. The gun would better serve being relined. I don't think you will find much difference in cost to fully reline to 32-20 than just sleeving the chamber.

If you can sort the .300 reamer out, you still have to deal with finding brass dies and bullets which are not common-in an uncommon bore size.


lancaster
(.470 member)
29/05/20 03:37 AM
Re: Chamber resleeve advise needed

my point of view: the 300 rook is not a high power cartridge



what would I do? turning the barrel out of the receiver, looking for a lathe with a four-jaw chuck for the octagonal barrel. I would drill the chamber area out, maybe to 10 mm diameter. than soft solder a short liner tube - 10 mm outside, 8 mm inside into the chamber.

looking for a reamer

there are simple 8,1 mm reamer for sale in germany,not expensive
just ream a cylindrical chamber with such a tool.


Huvius
(.416 member)
29/05/20 09:16 AM
Re: Chamber resleeve advise needed

Since your rifle has a very nice bore, I would try rechambering to 25/20 with a reamer pilot sized to the bore.
You would end up with a cleaned up chamber for a slightly bottle necked cartridge with a neck length of .235" if I'm thinking correctly.
That is if your existing neck area of the chamber is in good condition - you say the roughness is about halfway down the chamber.
Would be a 30-20 or if in keeping with the British way, maybe call it a 300 #2 Rook


500Boswell
(.400 member)
30/05/20 08:04 AM
Re: Chamber resleeve advise needed

Alan Swan re sleeved a Low Wall for me in 32-20 ,was good !


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