.220 Swift - Non Lead - 1:14 twist

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Jan 9, 2014
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Title says it all. I have to shoot Non-Lead in Kali.
Does anyone have a copper bullet that will stabilize in a 1:14 twist barrel?
I'm down to my last 80 of 52 gr. HPBT lead and will have to re-load non-lead. I would like to duplicate my current load of 41gr 4350 with a copper.
 

Cemetery21

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Barnes lists a 50 gr but at 12 twist or faster. Don't know if the speed of your Swift is enough to overcome the slower twist.


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Ross1147

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What are you shooting? We talking deer/hogs or are we talking varmints? I went to the Nosler 35 grn BTLF in my 223 in Cali when they switched to LF. You’ll be over 4K easy in a swift and they make squirrels explode. And they’re cheaper, almost comparable to lead on price.

 

Mikecr

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MV doesn't matter.
Likely under 50gr solids in 14tw, and you could have a hard time filling cases in 220sw with faster powder for this.
 
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I'm shooting a Ruger #1. I'll pick up a box of 35 grain Hammer. Loading data I'll dig up but with powder not readily available,I would prefer 4350 as I have plenty of it.
Yotes mostly, GS and the such I use my PCP.
 

JMW67

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Looking at speers data they are running a couple powders in the H-4350 range with 40 grain bullets I bet you can make it work might not be top velocity but will still be darn fast
 

JMW67

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one thing to your advantage is you will be able to use the entire case capacity plus with that little bullet
 

scope-eye

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Barnes lists a 50 gr but at 12 twist or faster. Don't know if the speed of your Swift is enough to overcome the slower twist.


View attachment 262238
You can shoot these in a 14 twist swift, the reduced bearing surface is what allows that. You have to send them somewhere around 4000fps which is not very hard to do with a 220 swift.

Dean
 

Mikecr

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Speed doesn't overcome anything.
If the bullet actually needs 1 turn per 12" displacement of a standard atmosphere, and you're shooting near that atmosphere, you will need 1 turn every 12" -regardless of speed.
 
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