Changeling
02-01-2010, 05:21 PM
Everything I have read concerning the mechanical/engineering aspect of setting up a revolver for cast projectiles approaches the Revolver measurements from different prospectives concerning the dimensions of the throat and barrel.
Some say the bullet should be 1 thousandth over bore diameter, others (mostly) say place your concern on the cylinder throats and have them 1 thousandth over "throat" diameter.
I'm having a hard time seeing any logic in these measurement suggestions.
If the point of the whole accuracy equation in Revolvers is to keep the bullet as tight to the mechanical line/measurements as possible why in the world would one want to open up a measurement over the bore diameter.
In short if you have a (45 LC) with a bore of .452 why wouldn't you want to keep this measurement from the throat (small increase for insertion) through the entire firing instead of having the throats 1 thousandths or larger in the throat than the barrel ?
Some say the bullet should be 1 thousandth over bore diameter, others (mostly) say place your concern on the cylinder throats and have them 1 thousandth over "throat" diameter.
I'm having a hard time seeing any logic in these measurement suggestions.
If the point of the whole accuracy equation in Revolvers is to keep the bullet as tight to the mechanical line/measurements as possible why in the world would one want to open up a measurement over the bore diameter.
In short if you have a (45 LC) with a bore of .452 why wouldn't you want to keep this measurement from the throat (small increase for insertion) through the entire firing instead of having the throats 1 thousandths or larger in the throat than the barrel ?