R-55 - Which of these does your's look like? - RimfireCentral.com Forums

Go Back   RimfireCentral.com Forums > >

Notices

Join Team RFC to remove these ads.
Reply
 
Thread Tools Display Modes
  #1  
Old 09-24-2019, 05:53 PM
ScoobyDoo
NRA Member - Click Here To Join!

Join Date: 
Jan 2006
Posts: 
1,049
TPC Rating: 
100% (17)
R-55 - Which of these does your's look like?



Log in to see fewer ads
Hi there. I have two R-55s and as you can see in the photo below, one has a block thingy along the recoil spring and the other doesn't. The one that doesn't has a 6-digit serial number and the one that does has a 4-digit serial number. Both are marked R-55 on the barrel (so neither is the earlier version of this rifle).

Which one do you have? Would it matter if I remove the block?
Attached Images
File Type: jpg R55-Compare.jpg (464.9 KB, 18 views)
Reply With Quote
  #2  
Old 09-24-2019, 07:01 PM
wproct's Avatar
wproct

Join Date: 
Dec 2006
Location: 
Iowa
Posts: 
4,214
TPC Rating: 
0% (0)
Is either one of them in 17M2 caliber? My reason for asking is that I once had one in 17M2 caliber and the action looked like the one in your bottom photo, and I understood that was to compensate for the higher chamber pressure of the 17M2.

Last edited by wproct; 09-24-2019 at 07:50 PM.
Reply With Quote
  #3  
Old 09-25-2019, 07:29 PM
ScoobyDoo
NRA Member - Click Here To Join!

Join Date: 
Jan 2006
Posts: 
1,049
TPC Rating: 
100% (17)
Both are 22LR.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 09-25-2019, 10:15 PM
Jammer22
NRA Member - Click Here To Join!

Join Date: 
Mar 2017
Location: 
Nowhere good
Posts: 
451
TPC Rating: 
0% (0)
Both of my 4 digit s/n rifles have the block. My 5 digit s/n does not all .22LR's
Reply With Quote
  #5  
Old 10-29-2019, 08:44 PM
ScoobyDoo
NRA Member - Click Here To Join!

Join Date: 
Jan 2006
Posts: 
1,049
TPC Rating: 
100% (17)
Any more love for the R-55? Anyone?
Reply With Quote
  #6  
Old 11-07-2019, 10:14 AM
Thomasconnor's Avatar
Thomasconnor
NRA Member - Click Here To Join!

Join Date: 
Sep 2011
Location: 
Hbg PA
Posts: 
2,576
TPC Rating: 
100% (76)
Nice rifles. I sold mine. One of the safety features I didn't like was that when attempting to release the R-55 firing pin before putting it away, you can't pull the bolt back a bit and pull the trigger.

The R-55 bolt must be closed completely for the pin to go, risking a chamber mouth strike if empty.

The only way I could do it was to load an empty case and leave the empty case in the chamber. The non-R55 rifles did not have this "improvement"...Tom
Reply With Quote
  #7  
Old 11-11-2019, 03:00 PM
Odd Job's Avatar
Odd Job

Join Date: 
Dec 2006
Location: 
London (ex SA)
Posts: 
237
TPC Rating: 
0% (0)
I have two R55s, both of them have a 4 digit serial number.
Neither one of them has the block.

Can you post more pictures of the block please? What does it do?

Here are mine by the way:



Reply With Quote
  #8  
Old 11-11-2019, 03:04 PM
Odd Job's Avatar
Odd Job

Join Date: 
Dec 2006
Location: 
London (ex SA)
Posts: 
237
TPC Rating: 
0% (0)
Quote:
Originally Posted by Thomasconnor View Post

The R-55 bolt must be closed completely for the pin to go, risking a chamber mouth strike if empty.
I used to think that also, but the pin can't hit the chamber because it is halted by the charging handle.
Take out the bolt and place the charging handle across it and see how far you can push the firing pin. If those tolerances are out, the next option is to have a new firing pin made with a reduced hole size at the rear. In that case the pin will be held up by the firing pin retention roll pin.

Last edited by Odd Job; 11-11-2019 at 03:06 PM.
Reply With Quote
  #9  
Old 11-11-2019, 03:24 PM
Odd Job's Avatar
Odd Job

Join Date: 
Dec 2006
Location: 
London (ex SA)
Posts: 
237
TPC Rating: 
0% (0)
I see a clue in the image:



That little spacer, together with the block, seems to make the recoil arm restricted in its rearward travel. When you manually pull the bolt back does the block rest against that spacer?

Can you take photos of the rifles with the trigger groups removed, side by side, to see if there are any differences inside? I am trying to think why they wanted the rearward action of the recoil arm restricted.
Reply With Quote
  #10  
Old 11-11-2019, 03:34 PM
Odd Job's Avatar
Odd Job

Join Date: 
Dec 2006
Location: 
London (ex SA)
Posts: 
237
TPC Rating: 
0% (0)
By the way there are strange variants with these R55s. Here is the bolt from one of my R55s:



And here is the bolt from my other R55, which is only 32 numbers behind the first one, in terms of serial numbers. Look at that milled portion:

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




All times are GMT -5. The time now is 12:52 AM.

Privacy Policy

DMCA Notice

Powered by vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimisation provided by DragonByte SEO (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright 2000-2018 RimfireCentral.com
x