Rechamber .22-250 to .220 Swift?

[oldman1951]

Could a 22-250 be rechambered to 220 Swift?

 

[SBS]

Not without cutting off virtually all of the existing chamber.

 

[357Mag]

Could a 22-250 be rechambered to 220 Swift?

Oldman -

Howdy !

Due to differences between the two mentioned cases' major diameters, the .22-250 barrel would need to be set back ( shortened @ breech end ), external threads added; and then new chamber reamed to make the process workable.

On the face of it, this does not sound practical ( IMHO ), because..... if nothing else; the resulting barrel would have to be shortened so much that any velocity gains hoped for ( by adopting the .220 Swift chambering ) would likely not reach the level the longer stock .22-250 barrel provided. Again..... IMHO.


With regards,
357Mag

 

[Bronsin]

That would be a change in cartridge, not caliber.

 

[Catfur]

Not without cutting the chamber off. .220 Swift is narrower in diameter than .22/25.

 

[oldman1951]

thanks!!

 

[Zero333]

220 Swift case body has a smaller diameter than the 22-250.

22 Creedmoor would do it.

Peterson has 22 Creedmoor brass., or you can neck down Lapua 6 Creedmoor brass.

 

[Walt Krafft]

You may also have magazine and extractor problems.

 

[DickE]

How about going to a 22-250 AI. A lot easier, minimum set back, no case stretching after AI is done. Faster than the swift, if you want speed.

 

[jackieschmidt]

Unless you just want the mystic of the 220 Swift, you could easily convert your chamber to a 22-250 Ackley Imp.

DickeE, we must have been typing at the same time.

 

[AlNyhus]

As much as I love the Swift, a 22-250 AI makes way more sense. The Lapua 22-250 cases are really good stuff. -Al