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6mm/220 swift?

 
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  #8  
Old 03-25-2011, 12:34 AM
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Join Date: Oct 2009
Location: Thunder Basin, WY
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Re: 6mm/220 swift?

I shot a 220 Swift for many many years. For a long time, it was my only rifle.

A little crowded in a Ruger short action. Couldn't get bullets out to the lands and still mag feed.

Easily the most accurate factory barrel rifle I've ever owned though. Unbelievable shooter. Only thing I didn't care for was quite a bit of case stretching.

If I was going to do a long 6mm now, it would be a 6mm Improved.

Short action, 6X47 Lapua (actually doing a variation of that currently) or 243 Improved. There's plenty of room in the short action for the 6X47 Lap.
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  #9  
Old 03-25-2011, 10:59 AM
B23 B23 is offline
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Re: 6mm/220 swift?

My 6-284 is on a M700 short action too and I think one of the most important factors to keep in mind when using a SA w/6-284 is using a smith that knows how to build a 6-284 on a SA. If you want to load to, or close to, the lands and still use it as a repeater with no feeding issue you have to obviously seat the bullet deeper and if it wasn't setup correctly to do that you will either not have your bullets touching or close to touching or if you do have them close then they will be to long to feed thru the mag. My dad has a 22-6mm on a short action and the guy that built it didn't keep those things in mind because when my dad loads for his 22-6mm it shoots really well at 20thou off but at 20thou off the lands using a Berger 75VLD it is way to long to feed thru the mag. I'm pretty sure they make a longer box for the SA M700 which would certainly help this issue but I'm not sure how much extra length you gain but I'm sure there is somebody here that could answer that.
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  #10  
Old 04-01-2011, 07:38 PM
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Join Date: Jun 2005
Location: Colorado Springs
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Re: 6mm/220 swift?

I own and shoot an original 6mm Lee Navy. But of course with that straight pull action and pressure limits it not a barn burner.

If you are looking to making a 6mm-220 Swift Improved, you may think about building a 6mm Lee Navy Improved. The Lee Navy has a very long neck compared to the 220 Swift. You can buy 6mm Lee Navy brass from Buffalo Arms. Pricey, but it can be bought. It is made from 25-06 brass sized down and the head trimmed to Lee Navy specifications.

That would be the case to base an improved version on. You could put a false shoulder on the neck and gain a quarter inch of case capacity blowing it out. Would be a hell a lot of trouble however compared to other options...but it would be unique.

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  #11  
Old 04-01-2011, 08:51 PM
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Join Date: Dec 2009
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Re: 6mm/220 swift?

I had a 6mm CJ which is necked down to .224, back 20 years ago bullet selection was junk and it did take some extra reloading steps neck trimming etc.. once you get up to 4000 fps it would key hole bullets all day, she was fun to shoot and I shoot a heck of a alot of fox, coyote, etc... back when they where worth $100 to $150. I was always into hotrod guns thats my log in. I set the barrel back 3 times than sold it. It was a ruger varmit heavy barrel and shoot 1/2 moa all day long. Have never seen barrel since like that one and all I own are barrel burning guns. With bullets now it would be fun to have again.
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