Author Topic: Converting Rolling Block  (Read 2452 times)

Offline Tubac

  • Top Active Citizen
  • *
  • Posts: 404
  • Liked:
  • Likes Given: 0
Converting Rolling Block
« on: March 26, 2009, 07:07:52 PM »
Hi gents,
Do any of you folks have, or know somebody that has converted A Swedish Rolling Block from Rimfire to Center fire?
I was wondering how complicated it gets redrilling the breach block. Can you reuse the firing pin?
from the Confederate Territory of Arizona

Offline Sir Charles deMouton-Black

  • NCOWS Member
  • Top Active Citizen
  • ***
  • Posts: 6199
  • Liked:
  • Likes Given: 393
Re: Converting Rolling Block
« Reply #1 on: March 26, 2009, 07:45:55 PM »
Not being a machinist, I would hire one.  Those breach blocks are hard to replace if it gets screwed up.  If I understand the process, you have to plug the old hole FIRST, otherwise the drill will wander towards the open space.  I'm not sure about reusing the firing pin.  They would be easy to make in any event.
NCOWS #1154, SCORRS, STORM, BROW, 1860 Henry, Dirty Rat 502, CHINOOK COUNTRY
Those who are no longer ignorant of History may relive it,
without the Blood, Sweat, and Tears.
With apologies to George Santayana & W. S. Churchill

"As Mark Twain once put it, “History doesn’t repeat itself, but it does rhyme.”

Offline Hell-Er High Water

  • Top Active Citizen
  • *
  • Posts: 429
    • Hell-Er High Water
  • Liked:
  • Likes Given: 0
Re: Converting Rolling Block
« Reply #2 on: March 26, 2009, 09:11:55 PM »

I have converted a No. 1 frame miliatary RRB from rim fire to center fire.

I have drawings that I made for the machinist that did the machine work and will send you a set if you eMail me with your name and mailing address.  My eMail addrerss is

This has worked out quite well and I have been shooting this rifle since 1993 with no problems.

HHW - Rich Heller
Napa, CA


  • Guest
Re: Converting Rolling Block
« Reply #3 on: Today at 08:23:51 AM »

Offline ndnchf

  • Top Active Citizen
  • *
  • Posts: 1419
  • Liked:
  • Likes Given: 1
Re: Converting Rolling Block
« Reply #3 on: March 27, 2009, 06:33:04 AM »
Many years ago I converted a .32 cal. #4 rolling block from rimfire to centerfire.  Its pretty straight foreward. Plug the hole, re-drill in the center and make a new pin.
"We're all travelers in this world.  From the sweet grass to the packing house, birth till death, we travel between the eternities"  Prentiss Ritter, Broken Trail

Offline John Taylor

  • Top Active Citizen
  • *
  • Posts: 173
    • Taylor Machine
  • Liked:
  • Likes Given: 0
Re: Converting Rolling Block
« Reply #4 on: March 27, 2009, 03:10:59 PM »
Just did a rolling block last week. Some of the blocks are case hardened and will be hard to get a drill started. Firing pin goes through the block at an angle which makes it a little hard to get it to come out in the right spot. Best to use a vertical mill so a carbide end mill can be used for starting the hole.
John Taylor, gunsmith


SMF spam blocked by CleanTalk

© 1995 - 2023