.220 Swift twist Recommendation?

[ISS]

I am gathering components for a 220 Swift build.

Stuck, I am, between eight and nine inch twist. I want to shoot the 80gr bullets.

thanks,

ISS

 

[ELR LVR]

I would go with an 8 twist to give you insurance/ 9 is borderline
(Better to overtwist than undertwist)
I use the Berger 85.5's with excellent results FWIW in an 8 twist Swift AI
And have used JLK 80's in the same gun (it likes the JLK's a tiny bit better),
but that is Jimmy Lee Knox Made old stock I had 2 boxes left of)
I started my Load development with the JLK 80's and when I looked for a replacement...
... the Berger 85.5 fit the bill

 

[pauls]

Go with the 8.

 

[DLT]

I know you might throw rocks at me but if I don’t say it someone else will. I am a swift fan period, however my 700 never fed the round reliably. Next thing is the components. I assume you have a pile of 220 swift brass to use but if not it can be tricky to locate. Same with a 22/250 at the time I built my rifle it was hard to get also. I went with a 22 creedmoor just for the ease of components. Mine shoots great and I’m glad i built it

 

[ISS]

The build will be on a post-WWII Commercial Mauser '98. Feeding will not be an issue from the magazine or single loading. I would like to shoot some of the 90gr Bergers as well, but their manual says I need a 7" twist. I have a couple months leeway time, the '98 is off having DST's fitted and tuned.

thanks all,

ISS

 

[Gary in MD]

My two Swifts are 12" and 14" twisted from the factory.
When it's time to re barrel, I will go to the 8 twist. That will allow me to use bullets from 55 to 80 ish grains depending on the elevation that you are shooting.

 

[Big Mc]

I am gathering components for a 220 Swift build.

Stuck, I am, between eight and nine inch twist. I want to shoot the 80gr bullets.

thanks,

ISS

I have one with a 1x8x28 shoots 80,s fine. go for it. Tommy Mc

 

[ISS]

Thanks for the shared information on twist.

Eight inch it is!

 

[No manches"]

I am gathering components for a 220 Swift build.

Stuck, I am, between eight and nine inch twist. I want to shoot the 80gr bullets.

thanks,

ISS

I own 2 swift's.
One with a 12 twist that has 2,990 rounds through it
The other with a 10 twist. That has 1,850 rounds through it.

Almost time to re-barrel the 12 twist...

So, with that said"..
10 twist all the way. All from 40gr to 77grn will be fully stable with it.

And very usable speeds.

 

[1lessdog]

There is always someone that has to go off on a tangent about some other caliber. I love the 220 Swift and I have everything for the build. I'm going with AI version. I have the regular 220 Swift and I wish I knew how many animals it has killed. Let's just say a bunch. You will love the Swift. And how it comes up in a conversation. Kind of like, you shoot a 22 Creedmoor, good caliber, me myself I shoot a Swift, 220 Swift. There is no mistake when other shooters hear the word Swift.