Road_Clam
32 Cal.
- Joined
- Oct 21, 2017
- Messages
- 60
- Reaction score
- 9
So I was able to come up with a fairly simple tool to scrub the transfer hole from my barrel to the touch hole.
Step 1 was to purchase a pin vice kit off Ebay : https://www.ebay.com/itm/4-Piece-P...717667?hash=item33c84b6a23:g:vRMAAOSwax5Y1r9R
The pin vice that will fit in a 50 cal bore was the 2nd smallest holder with a collet O.D of .400 .
I then used a small 3/16" nylon tube brushes : http://www.aircraftspruce.com/cata...lhrMMfMgBh_e9YKrEsb9KuADK4RTirLhoCo50QAvD_BwE
The handle end of the pin vice is already hollow, so I drilled out the hole to .157" for a #10-32 thread for my ramrod.
Lastly I wrapped the pin vice just below the collet with electrical tape to act as a bore guide:
The pin vice brush assembly :
Fits very nicely in the small passageway that connects to the vent hole. I feel a good scrubbing motion when moving the brush in and out :
Lastly I machined a #10-32 brass screw, cut the head off and machined down to an od of .137 and prick punched the end to help hold a .88" square patch. I secured the patch with an oring and used this to swab the small passageway. Worked very good :
Hope this helps anyone who has the same breech vent hole design. Hopefully now I will be able to keep the small passageway hole clean and free of accumulating crud.
Step 1 was to purchase a pin vice kit off Ebay : https://www.ebay.com/itm/4-Piece-P...717667?hash=item33c84b6a23:g:vRMAAOSwax5Y1r9R
The pin vice that will fit in a 50 cal bore was the 2nd smallest holder with a collet O.D of .400 .
I then used a small 3/16" nylon tube brushes : http://www.aircraftspruce.com/cata...lhrMMfMgBh_e9YKrEsb9KuADK4RTirLhoCo50QAvD_BwE
The handle end of the pin vice is already hollow, so I drilled out the hole to .157" for a #10-32 thread for my ramrod.
Lastly I wrapped the pin vice just below the collet with electrical tape to act as a bore guide:
The pin vice brush assembly :
Fits very nicely in the small passageway that connects to the vent hole. I feel a good scrubbing motion when moving the brush in and out :
Lastly I machined a #10-32 brass screw, cut the head off and machined down to an od of .137 and prick punched the end to help hold a .88" square patch. I secured the patch with an oring and used this to swab the small passageway. Worked very good :
Hope this helps anyone who has the same breech vent hole design. Hopefully now I will be able to keep the small passageway hole clean and free of accumulating crud.
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