The Firing Line Forums - View Single Post - Uberti 1851 Colt Navy Conversion....Parts Needed?

45 Dragoon · December 26, 2019, 01:03 PM

Head Tomcat, you have a short arbor (it's Uberti, it just is). Just drop a very small flat washer down the arbor hole and assemble the revolver (there's your proof, the "swing the barrel down to meet the frame" doesn't mean a thing (not any more)) hmmmmm. The arbor IS the head space "adjustment". Drive the wedge in (the " re-assembly on Colts disassembly instructions) and you'll find the cylinder will be locked up. Spacing of the arbor will accomplish an "end shake" (barrel/cylinder clearance). A bbl/cyl clearance as small as .002" - .003" seems to be perfect and the "self cleaning" aspect of the open top (kissing the barrel each time the action is cycled) is a nice (even if accidental) feature!! With a conversion set-up a .0015" is an acceptable measure. You can "adjust" (face) the C&B cyl to accommodate if/as needed.

Mike

December 26, 2019, 01:03 PM	#22
45 Dragoon Senior Member Join Date: June 14, 2013 Posts: 656	Head Tomcat, you have a short arbor (it's Uberti, it just is). Just drop a very small flat washer down the arbor hole and assemble the revolver (there's your proof, the "swing the barrel down to meet the frame" doesn't mean a thing (not any more)) hmmmmm. The arbor IS the head space "adjustment". Drive the wedge in (the " re-assembly on Colts disassembly instructions) and you'll find the cylinder will be locked up. Spacing of the arbor will accomplish an "end shake" (barrel/cylinder clearance). A bbl/cyl clearance as small as .002" - .003" seems to be perfect and the "self cleaning" aspect of the open top (kissing the barrel each time the action is cycled) is a nice (even if accidental) feature!! With a conversion set-up a .0015" is an acceptable measure. You can "adjust" (face) the C&B cyl to accommodate if/as needed. Mike Last edited by 45 Dragoon; December 26, 2019 at 05:17 PM.