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  #1  
Old 01-07-2022, 07:08 PM
Al Nyhus Al Nyhus is offline
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Default 17-223 (kind of) info and questions

I've got a bit of an unknown rig headed my way. The barrel is unmarked, no dies or brass....supposedly, it's a 17-223. I'll do a Cerrosafe cast to verify, of course.

Having had a fair number of .17's, I savvy the basics of this one. But any hints, ideas or tricks will be helpful. I've already got some ideas on dies but what are you guys using that work with this cartridge?

Looking forward to your thoughts! -Al

Last edited by Al Nyhus; 02-01-2022 at 09:14 PM.
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  #2  
Old 01-08-2022, 03:26 AM
Oso Polaris Oso Polaris is offline
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What is the age of the rifle. It it is 1870's or newer are you sure it is 17-223 and not just 17 Remington?

or by chance is it 17-222?
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  #3  
Old 01-08-2022, 03:41 AM
Kevin Gullette Kevin Gullette is offline
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Question Hmmmmmmmmmmmm..........

Al,

Neck diameter? Fired brass? Dies?

The chamber cast will tell much.

Kevin

edit: What action, barrel, stock?

Last edited by Kevin Gullette; 01-08-2022 at 05:15 AM. Reason: add
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Old 01-08-2022, 07:01 AM
foxhunter foxhunter is offline
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Default

having owned a 17/223 for several years i can say mine was excellent. easy to make brass for and very accurate (a .25) shooter hornady 25 gr hp and ball c powder. if i remember correctly the 17/223 has more powder capacity than the 17 remington.
if you can find a type s 223 die and switch out the bushing to a 17 it will work. you will have to switch out the seater stem to a 17.
chamber cast will tell you a lot as to chamber and throat condition.

good luck
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  #5  
Old 01-08-2022, 12:32 PM
Al Nyhus Al Nyhus is offline
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Quote:
Originally Posted by Kevin Gullette View Post
Al,

Neck diameter? Fired brass? Dies?

The chamber cast will tell much.

Kevin

edit: What action, barrel, stock?
It's on an XP100 single shot action with a 24" stainless barrel. As I mentioned, there are no dies, brass or other gear with it. The barrel is a heavy stainless .17 caliber (maker unknown) and is unmarked as to cartridge or neck diameter. It was done sometime in the late '70's, then passed through several different owners...apparently never having been fired by any of them other than the original owner.

Fooling with some cases yesterday, I ran some .223 cases into a .17 Rem. standard seating die to knock the neck down a bit, then into a Redding Type 'S' 223 f. l. bushing die with a .200 bushing....cases look good. Hopefully it's a straight 17-223 and not a one-off wildcat of some sort. Will be fun to figure out just what it is!

Good shootin' -Al
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Old 01-08-2022, 01:45 PM
17VLD 17VLD is offline
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Default Following this...

Can’t wait to see pics Al.
Probably a 10 twist, bet it will shoot well, if the bore was cared for at all.
My Sako in 17-222 shot well once cleaned up good.The barrel was not marked either, other than “PO Ackley”, you’d think those old fellows would designate the chambering unless the thought they would keep it forever.
Matt
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  #7  
Old 01-08-2022, 02:18 PM
Kevin Gullette Kevin Gullette is offline
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Question

Quote:
Originally Posted by Al Nyhus View Post
It's on an XP100 single shot action with a 24" stainless barrel. As I mentioned, there are no dies, brass or other gear with it. The barrel is a heavy stainless .17 caliber (maker unknown) and is unmarked as to cartridge or neck diameter. It was done sometime in the late '70's, then passed through several different owners...apparently never having been fired by any of them other than the original owner.

Fooling with some cases yesterday, I ran some .223 cases into a .17 Rem. standard seating die to knock the neck down a bit, then into a Redding Type 'S' 223 f. l. bushing die with a .200 bushing....cases look good. Hopefully it's a straight 17-223 and not a one-off wildcat of some sort. Will be fun to figure out just what it is!

Good shootin' -Al
Borescope? Twist?

Kevin
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  #8  
Old 01-08-2022, 03:00 PM
Al Nyhus Al Nyhus is offline
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Quote:
Originally Posted by Kevin Gullette View Post
Borescope? Twist? Kevin
It's not here yet..... -Al
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  #9  
Old 02-01-2022, 02:34 PM
Bill K Bill K is offline
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Now the "Rest of the story" is known. Your idea of the shortened 17 Rem die should work just fine.
And as you say, it should be a shooter. After you get this up and running full bore (pun intended ) let us know how it is doing.
You should enjoy it.
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  #10  
Old 02-01-2022, 03:31 PM
GLWenzl GLWenzl is offline
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Quote:
Originally Posted by Al Nyhus View Post
Well....it finally arrived and here's what I've got:

The chamber is a .036 short .17 Remington, not a 17-223. It's actually a pretty slick way to do one as it retains the .17 Remington's longer neck while backing up the case capacity a bit and using a standard 223 head space gauge. The chamber neck is .205, barrel is twisted 1:10" and it appears to have a bit more free bore that we'd do today if we were having a reamer like this ground. All in all, it should shoot the Berger 25's pretty well.

Dies should be pretty simple...will shorten a .17 Rem. f.l. die to push the shoulders back, then trim to length. I've got a left over .17 Rem. Wilson seater that could be tweaked and various flavors of 223 and 20 Practical bushing f.l. dies to cannibalize for f.l. sizing chores.

I've been out of the .17 Rem loop for a bit and have some questions on brass. Of the available .17 Rem cases, which seems to be the best quality? Also, any neck dimension differences between the brands? I always had good luck with original Remington .17 Remington brass after they were massaged a bit...thought I had a new bag of 100 here but it seems not.

Any 'thunks' on this appreciated!

Good shootin' -Al
I know it’s not what you’re asking and I can’t answer because it’s been years since I’ve bought any 17 rem brass… But if it’s a short 17 Rem then I wouldn’t even consider 17 Rem brass and make it from 223.
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