ASSRA Forum › General › Gunsmithing Single Shot Rifles › A new cadet barrel question
(Moderator Group: Moderator)
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1 Send TopicPrint
Normal Topic A new cadet barrel question (Read 1928 times)
Dino in Reno 2
Junior Member
**
Offline



Posts: 56
Joined: Sep 2nd, 2013
A new cadet barrel question
Oct 1st, 2013 at 2:47am
Print Post  
One of my projects has the Sportco-Martini .22 cal marked  gain twist .22 barrels. It's in like new condition but...
It's been rechambered to .22 K Hornet.
Safe? Disaster waiting to happen?
Any feedback will be helpful. I seem to find the oddest projects.

  
Back to top
 
IP Logged
 
RJM
Full Member
***
Offline



Posts: 212
Location: State of Confusion
Joined: Oct 15th, 2006
Re: A new cadet barrel question
Reply #1 - Oct 1st, 2013 at 11:02am
Print Post  
Dino,
Most likely not - many hornets in the past were made from rim fire barrels. Take into account the 16" twist & the tighter bore when you're loading & you should be fine. 
Regards,
Ron
  
Back to top
 
IP Logged
 
lefty1
Ex Member


Re: A new cadet barrel question
Reply #2 - Oct 11th, 2013 at 5:38pm
Print Post  
I believe Parker Ackley did some experiments begining with a .22 calibre  barrel chambered for a small cartridge and progressively  chambered it with bigger cartridges until he got to the  30.06 firing each one safely with no problems ..His conclusion was that if the firearm was chambered properly them the pressure caused by the swaging down of the projectile from the increased size to .22 was not huge .. I cant remember what he calculated  pressure  was   required to swage a 30.06 projectile down to .22 but it was much less than I would have imagined  ,so to swage a .22 center fire projectile down to .22 rimmfire dia would be a doddle  .. Rob
  
Back to top
 
IP Logged
 
John Taylor
Frequent Elocutionist
*****
Offline



Posts: 1851
Location: Lewiston, ID
Joined: Oct 23rd, 2006
Re: A new cadet barrel question
Reply #3 - Oct 11th, 2013 at 7:21pm
Print Post  
I saw a 270 that someone used a 308 in. They hammered the bolt forward till it closed. It did not swedge the bullet down from 30 to 27 but it did take most of the wood and mag box off and the base of the brass was welded to the bolt face.
  
John Taylor   Machinist/gunsmith
Back to top
WWW  
IP Logged
 
lefty1
Ex Member


Re: A new cadet barrel question
Reply #4 - Oct 13th, 2013 at 4:45pm
Print Post  
Even hammered in that sure was not properly chambered and head spaced as Ackley did .. Rob Undecided
  
Back to top
 
IP Logged
 
Page Index Toggle Pages: 1
Send TopicPrint
‹ Previous Topic | Next Topic ›
 
  « Board Index ‹ Board Top  

ASSRA Forum » Powered by YaBB 2.6.12!
YaBB Forum Software © 2000-2026. All Rights Reserved.

Valid RSS Valid XHTML Valid CSS Powered by Perl Source Forge

Page completed in 1.2388 seconds.