Saubier.com  



Go Back   Saubier.com > Saubier.com Forums > Small Caliber Discussion Board

Reply
 
Thread Tools Display Modes
  #11  
Old 12-11-2019, 04:13 PM
moorepower moorepower is offline
Senior Member
 
Join Date: Mar 2011
Posts: 1,189
Default

Quote:
Originally Posted by Bayou City Boy View Post
100% of the time........ With any chamber, head space is paramount for safety and efficiency.

That said, simply reaming an existing Hornet chamber to get an improved K- Hornet chamber is not the same type of process as truly "AI'ing" a chamber.

-BCB
Totally agree but he did not specify. I would add unless it is rimmed I would not.
Reply With Quote
  #12  
Old 12-14-2019, 01:13 AM
AWS AWS is offline
Junior Member
 
Join Date: Feb 2008
Location: wetside WA
Posts: 29
Default

A TRUE AI'd chamber needs a set back if you are AI'ing the existing cartridge BUT you can cut a 223 AI chamber in a 222 Rem barrel with out setting it back.

You can IMPROVE any cartridge without setting the barrel back, wildcats like Gibbs cartridges actually move the shoulder forward so no set back is necessary.

You can use a 223 AI reamer to improve an existing 223 with out setting it back and you have a 223 Improved 40 degree but not a 223 AI. You can even use 223/.378 competition shell holders that are thicker to adjust for the extra length in headspace.

I hand ream 223 barrels to 22-204 and 6x47 Rem to 6mm-204 or otherwise know as the 222 Rem Mag Improved and 6x47mm Improved that don't need for custom dies, fireforming or setting back the barrel.
Reply With Quote
  #13  
Old 12-15-2019, 05:49 PM
Daryl Daryl is offline
Senior Member
 
Join Date: Sep 2006
Location: Prince George, B.C. Canada
Posts: 3,912
Default

Quote:
Originally Posted by AWS View Post
A TRUE AI'd chamber needs a set back if you are AI'ing the existing cartridge BUT you can cut a 223 AI chamber in a 222 Rem barrel with out setting it back.

You can IMPROVE any cartridge without setting the barrel back, wildcats like Gibbs cartridges actually move the shoulder forward so no set back is necessary.

You can use a 223 AI reamer to improve an existing 223 with out setting it back and you have a 223 Improved 40 degree but not a 223 AI. You can even use 223/.378 competition shell holders that are thicker to adjust for the extra length in headspace.

I hand ream 223 barrels to 22-204 and 6x47 Rem to 6mm-204 or otherwise know as the 222 Rem Mag Improved and 6x47mm Improved that don't need for custom dies, fireforming or setting back the barrel.
Exactly - not a REAL AI chamber if the barrel is not set back - however, setting the barrel back in not requisite for simply "improving" a chamber.
The "A" came in, in being able to fire factory ammo. I don't do that, thus not necessary.

My .375 Ackley IMP is not really an Ackley IMP ctg. - as there is no factory .375 ctg. on the '06 case. This does not matter at all, to me.
__________________
Daryl
Reply With Quote
  #14  
Old 12-16-2019, 04:14 PM
Jordan Jordan is offline
Senior Member
 
Join Date: Sep 2006
Location: Alturas, California
Posts: 507
Default

The main reason I was asking is to find out if a hand reamer would cut a clean, straight chamber. I presume it will and I presume I can use a fired case as a go-no-go gage.
Reply With Quote
  #15  
Old 12-16-2019, 05:44 PM
Daryl Daryl is offline
Senior Member
 
Join Date: Sep 2006
Location: Prince George, B.C. Canada
Posts: 3,912
Default

I used 'ready' to load (sized) brass as my headspace gauge. When the bolt closed on a case, I was done. There was no double shoulder on fired brass. Worked out perfectly, even time.
__________________
Daryl
Reply With Quote
  #16  
Old 12-16-2019, 09:19 PM
AWS AWS is offline
Junior Member
 
Join Date: Feb 2008
Location: wetside WA
Posts: 29
Default

I leave the barrel on the action and have a bushing on the reamer handle to center it in the action to keep it straight.
Reply With Quote
  #17  
Old 12-17-2019, 03:19 PM
Jordan Jordan is offline
Senior Member
 
Join Date: Sep 2006
Location: Alturas, California
Posts: 507
Default

Where does a guy get a reamer handle and bushing?
Reply With Quote
  #18  
Old 12-17-2019, 03:50 PM
Bill K Bill K is offline
Senior Member
 
Join Date: Aug 2012
Location: N.E. Commie Kalifornia
Posts: 4,724
Default

Try Brownell's or PT&G Jordan.
Reply With Quote
  #19  
Old 12-17-2019, 05:04 PM
Jordan Jordan is offline
Senior Member
 
Join Date: Sep 2006
Location: Alturas, California
Posts: 507
Default

Thanks Bill. Too obvious for me to figure out!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 08:14 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.