Mystery .22 bottom metal, any ideas ?

[roklok]

I won this bottom metal in a Gbroker auction lot. It is extremely well done machined from steel, and is apparently for a .22LR of some sort, I am assuming bolt action. It also came with a trigger, which might be the best clue as to which rifle it was designed for. It is also possible the entire rifle was a custom made one-off. Does anyone have any ideas what this bottom metal may be for or recognise this style of trigger in a rimfire rifle ? It appears the trigger is pinned in place and actuates a separate sear assembly.

 

[Grumpy gumpy]

The bottom metal looks like a 22lr conversion for something like a Mauser,
Gumpy

 

[Grumpy gumpy]

I keep looking at this, I suspect that it is missing some parts, the rounded end of the trigger
looks like it is part of a set trigger system, the end actuates a kicker to trip the sear, or maybe just as a very light trigger with a kicker.
Gumpy

 

[roklok]

I do think you are on the right track with a Mauser conversion bottom metal. I will measure action screw spacing and compare it with my 98s.

 

[roklok]

Well it is not for a Mauser 98, and I doubt any Mauser. Here I held it up to a '98 with the rear action screw holes even. It is a similar shape, but much shorter and narrower.

 

[WCFMetalsmith]

Its a Blackburn guard for a custom Winchester model 52

 

[Grumpy gumpy]

Its a Blackburn guard for a custom Winchester model 52

Whilst I’m not doubting you, it’s not like any win 52 bottom I’ve ever seen

This is model 52 bottom metals I’m familiar with
Gumpy

 

[Grumpy gumpy]

I trawled the interwebs and they showed a picture of a bottom metal just like you said, a blackburn custom bottom metal for an extended tang model 52c
I have learnt something today and that is a good thing
Gumpy

 

[roklok]

Wow !! I have a Winchester 52 in the safe, of course this would require a custom stock, or at least custom inletting. It has been a while since I have had mine apart, but I don't recall mine having this type of trigger. Thanks WCFMetalsmith !!

At this rate I stole it. I won it and a CZ550 Safari Magnum floorplate for 99 cents on Gunbroker, neither seller nor I knew exactly what the parts were. I felt bad and actually sent the seller a few extra bucks instead of 99 cents.

 

[Grumpy gumpy]

Wow !! I have a Winchester 52 in the safe, of course this would require a custom stock, or at least custom inletting. It has been a while since I have had mine apart, but I don't recall mine having this type of trigger. Thanks WCFMetalsmith !!

At this rate I stole it. I won it and a CZ550 Safari Magnum floorplate for 99 cents on Gunbroker, neither seller nor I knew exactly what the parts were. I felt bad and actually sent the seller a few extra bucks instead of 99 cents.

You did really well out of that deal. The price I saw on the Blackburn was Us$425
Gumpy