Author Topic: rechamber .223 (Read 1206 times)

BigLost · « **on:** August 20, 2009, 11:31:45 AM »

Hate plain vanilla,,,want something old-ish,,any 1 here done a .223 to .219 Zipper??

dieselten · « **Reply #1 on:** August 20, 2009, 12:15:20 PM »

Not on a Handi, but I have a Winchester Hi Wall in 219 Donaldson Wasp (sort of an improved 219Zipper). It shoots great. Nice thing about this over the Zipper is that there is less case taper which might alleviate some potential extraction problems.

mitch132 · « **Reply #2 on:** August 20, 2009, 01:29:46 PM »

.223 Remington to .219 Zipper won't quite work unless you were doing a bolt gun where the barrel could be set back. I got bored and sketched the two cases in AutoCAD and placed them on top of each other. See the attached .PDF's. The .219 Zipper will not quite clean up the .223 Rem chamber. Sorry.

I got the dimensions from:

http://www.stevespages.com/page8d.htm

mitch132 · « **Reply #3 on:** August 20, 2009, 01:47:49 PM »

The .219 Wasp will not clean up either. See attached .PDF's. You would have many more options if you started with a .22 Hornet. Some here have rechambered a .223 to .225 Winchester.

Datil · « **Reply #4 on:** August 20, 2009, 02:11:03 PM »

I have 219 zipper that was a 22 Hornett. Reamed by hand.
Changed ejector for a 30-30. cut noch wider with a moto-tool.
Shoots better than the Hornett. My oldest Son has one also.
He used a cordless drill to the reaming.
Marv.

awp101 · « **Reply #5 on:** August 20, 2009, 04:10:21 PM »

Quote from: Datil on August 20, 2009, 02:11:03 PM

I have 219 zipper that was a 22 Hornett. Reamed by hand.
Changed ejector for a 30-30. cut noch wider with a moto-tool.
Shoots better than the Hornett. My oldest Son has one also.
He used a cordless drill to the reaming.
Marv.

Never having done a rechambering job, would something like that be easy enough for a beginner?

Datil · « **Reply #6 on:** August 20, 2009, 04:20:20 PM »

Yes My son & i where both beginners. Use plenty cutting oil. Clean reamer ofton.
Marv.

Smokin Joe · « **Reply #7 on:** August 21, 2009, 08:45:15 AM »

mitch132, good thing I read your post; I'm getting ready to do a stub job to .219 Zipper from a .223 donor.
Any idea how much the barrel has to be set back to clean up?

BigLost · « **Reply #8 on:** August 21, 2009, 10:53:29 AM »

THANXX MITCH,,thought 'bout the 225,,but want the long sloping(?) case for the old look,,might go .22/303,,but keep the press. @ .223 level to eliminate the increased bolt thrust thing.

cwlongshot · « **Reply #9 on:** August 21, 2009, 11:00:49 AM »

Quote from: BigLost on August 21, 2009, 10:53:29 AM

THANXX MITCH,,thought 'bout the 225,,but want the long sloping(?) case for the old look,,might go .22/303,,but keep the press. @ .223 level to eliminate the increased bolt thrust thing.

The 219 donaldson wasp may fit your needs....

http://en.wikipedia.org/wiki/.219_Donaldson_Wasp

http://www.chuckhawks.com/219_Wasp_Thornblom.htm

CW

mitch132 · « **Reply #10 on:** August 21, 2009, 03:25:45 PM »

Smokinjoe,

That will work for a stub since the barrel can be set back. My sketches are based on the cartridge dimensions, so the actual distance will be a little bit greater in length. Based on the cartridge it looks to be 0.053", but the actual distance will be more like 0.070" to 0.100" after accounting for the larger chamber dimensions vs cartridge and for other possible inaccuracies. See attached .PDF. I'm sorry I can't give you a more accurate dimension than that, but every rifle chamber is slightly different. Good luck!

Smokin Joe · « **Reply #11 on:** August 21, 2009, 03:27:29 PM »

I think I'll look at setting it back .250 and see how that works.

Thanks

mitch132 · « **Reply #12 on:** August 21, 2009, 03:31:56 PM »

0.250" will definitely work! Even 0.125" would work just fine. 0.100" should work unless chambers were horribly out of spec.

mitch132 · « **Reply #13 on:** August 21, 2009, 03:44:06 PM »

Quote from: BigLost on August 21, 2009, 10:53:29 AM

THANXX MITCH,,thought 'bout the 225,,but want the long sloping(?) case for the old look,,might go .22/303,,but keep the press. @ .223 level to eliminate the increased bolt thrust thing.

Big Lost,

Remember that even if pressure is held constant, but internal case head diameter is increased, the resulting bolt thrust has increased. For easy comparison purposes, let's look at the external case head. A .223 Remington has an external case head of .378" and a .303 British has a thickness of .460" just before the rim. If both were operated at the same pressure the .303 British would generate more thrust due to Force = Pressure x Area. However, as long as you are building this on a modern SB2 frame, you should be just fine as they can withstand 500 S&W Mag loads and Ruger No. 1 45-70 loads. Good luck with the project!

BigLost · « **Reply #14 on:** August 21, 2009, 05:51:17 PM »

HEY MITCH,,your reply is correct of course,,I meant to say velocity not pressure,,but my rifle is a newer one I got in 2000,,an sb2,,but a NK prefixed that the co. would not xtra bbl ,,I forgot why.I am not a velocity freak for this application,,.223 speed more that enough for what I want to do..thinkin' on puttin' one of those long meacham antique lookin' scopes,,and puttin old Stevens style stock&forearm on it,,.223 speed from a chamber as big as the .22/.303 shouldn't be a stretch for the H&R.HEY LONGSHOT,,the DONALDSON was the zinnger benchrest .22 in my pop's younger days,and what I am told it was the king till the triple duce came along.

GregP42 · « **Reply #15 on:** August 22, 2009, 10:09:33 PM »

If your wanting a big sloping case why not a 220 swift? I had one done a couple of years ago and it has been a good shooter and zero problems.

Greg

briannmilewis · « **Reply #16 on:** August 26, 2009, 02:15:51 PM »

Quote from: mitch132 on August 20, 2009, 01:29:46 PM

.223 Remington to .219 Zipper won't quite work unless you were doing a bolt gun where the barrel could be set back. I got bored and sketched the two cases in AutoCAD and placed them on top of each other. See the attached .PDF's. The .219 Zipper will not quite clean up the .223 Rem chamber. Sorry.

I got the dimensions from:

http://www.stevespages.com/page8d.htm

Lee's Modern Reloading Second Edition has many cartridge drawings, that is where I have got my ideas for rechambering. FWIW...

myarmor · « **Reply #17 on:** August 26, 2009, 05:46:10 PM »

I may be off base, but I believe a 222 Rem Mag should work as well...
And it's got an excellent history and track record...

-Aaron

rickt300 · « **Reply #18 on:** August 26, 2009, 05:55:39 PM »

I hate being the spoiler but what isn't the 223 doing for you? I got a 223 barrel fitted in the standard contour and it is very accurate. I was planning to get it rechambered to a 22-250 or 220 Swift and use it for a deer rifle but i have several good deer rifles anyway.

myarmor · « **Reply #19 on:** August 26, 2009, 06:01:35 PM »

touche...growing up (personally) myself I was pretty attached to my 22Mag years ago and I never had a desire for the 223, then I picked one up a few years back and realized just how useful it can be on the farm ...It's one of my most fun/and useful rifles and has tagged more Groundhogs than any rifle I own... but to each his own.. Nothing worng with wanting a different cal or cartridge, it's a nice freedom.