ASSRA Forum › General › Gunsmithing Single Shot Rifles › Advice sought
(Moderator Group: Moderator)
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1 Send TopicPrint
Normal Topic Advice sought (Read 2085 times)
Joel Black
Full Member
***
Offline



Posts: 165
Joined: Jun 22nd, 2010
Advice sought
Dec 2nd, 2010 at 2:10pm
Print Post  
Normally I would post this on the Double Gun Forum, but its been down for 2 weeks. I have the opportunity to get a beautiful Cooper Model 38 in .22 CCM. I know I can use Fiocchi .22 Velo Dog cases, but they do not hold up well at the pressures the cartridge was designed for. It is why there were only 200 of these rifles made in this caliber. The rifle easily matches my G&Hs for quality which is why I want it. I like to shoot all the guns I own, so I want it to be changed to a caliber I can use. As I see it, I can alter the bolt to rimfire and shoot it with .22 mag RF, which really appeals to me because I use the lovely milled magazine. The other possibility is to rechamber it to .22 Hornet and make a solid aluminum loading block to replace the magazine.
  
Back to top
 
IP Logged
 
BP
Frequent Elocutionist
*****
Offline



Posts: 8039
Location: Westside
Joined: Aug 27th, 2006
Re: Advice sought
Reply #1 - Dec 2nd, 2010 at 3:51pm
Print Post  
Joel,

Something to consider....    the 22 CCM rim thichness is ~ 0.050", and the 22 Mag rims I've measured are ~ 0.044", so you'll have ~ 0.006" to add to your Model 38's existing headspace. Base dimension of the 22 Mag is also ~ 0.008" smaller than the 22CCM, and the 22 Mag case is ~0.100" shorter. You may decide that the existing chamber is a bit sloppy for the 22 Mag conversion. 

There was a gentleman in CA that was forming a number of obsolete cases from modern brass, one of which was the 22 Maynard extra long centerfire from 22 Hornet brass. I 'm unable to lay my hands on his contact info right now, but maybe someone from that area will chime in.

BACO also lists the 22 Ex L CF, but don't know their source or if they produce them in-house. You might have them send you a couple sample cases to see if they are suitable for your Model 38. 

Regards,
BP
  
There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves.
Proud Noodlehead
Back to top
 
IP Logged
 
Joel Black
Full Member
***
Offline



Posts: 165
Joined: Jun 22nd, 2010
Re: Advice sought
Reply #2 - Dec 4th, 2010 at 9:11am
Print Post  
Thank you very much. That is exactly the kind of information for which I was looking.
  
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 1.2922 seconds.