220 Swift; rimmed or not?

[ISS]

I have a Borchardt Rifle Company action. Model of 1878 replica. I want to go with a Swift for live varmint hunting. Is there enough rim, the pundits say "Semi-rimmed". Most single shot falling block action require a real rim.

What say you?

 

[SSL]

.220 Swift is indeed a "semi-rimmed" case. It depends on if the extractor is substantial enough to engage the smaller rim. The good news is that the .220 rim is .473", the same as the .243 - .30-06 family. The body is just .445" at the base - .028" smaller than the rim. Perhaps the extractor could be modified and fitted to the .220 rim.

 

[a1712]

.225 Winchester 40° Imp. Brian.

 

[ISS]

thanks, thing is on the Swift I have a reasonable offer on dies and brass, etc.
Option B is a Wasp package.

 

[AlNyhus]

I have a Borchardt Rifle Company action. Model of 1878 replica. I want to go with a Swift for live varmint hunting. Is there enough rim, the pundits say "Semi-rimmed". Most single shot falling block action require a real rim.

What say you?

What does Borchardt say?

 

[ISS]

Al hasn't gotten back with me yet.

 

[jackieschmidt]

I always thought that any action that would extract a regular .473 case would also extract a 220 Swift case.

 

[ELR LVR]

I always thought that any action that would extract a regular .473 case would also extract a 220 Swift case.

My .473 bolt heads extracts them fine, on 2 of them
Ruger 77 and Win 70

 

[Keith Kilby]

Falling block extractors, like in the Sharps Borchardt and original Winchester 1885 were designed for rimmed cartridges. While the semi-rimmed Swift case may work , it is likely that unless you pay careful attention loading it you could get the case ahead of the extractor. There is no lateral movement like in a Ruger No. 1 which does work. Also if you get too snorty with your loads and have cases reluctant to extract, the minimal purchase the extractor has may pull through the”rim”. As previously suggested do one of the 30-30 based wildcats.

 

[Sniperhandle]

.219 donaldson wasp

 

[Keith Kilby]

The 219 Donaldson Wasp is a dandy ! I built one on an original Winchester 1885 action. Shoots quite well and functions without a hitch.

 

[ISS]

219 Zipper is the new plan.