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This is one of those bench-clearing brawl topics.
Shoot bullets with copper on the outside, you get copper fouling. While it accumulates, things like MV change. Eventually it reaches equilibrium, and things change a lot slower. Unless you remove the copper, then things start changing fast again (w/r to round count) until equilibrium is restored. In this case, you don?t want change.
In general, there would have to be a good reason to do all that work and upset the copper equilibrium you fired all those rounds to achieve. Cleaning carbon fowling (powder solvent) won?t remove much copper, but using copper solvent to remove copper is something you really want to understand before you do it.
If you have reamer marks in the throat of a new barrel that you are eager to wear and lap smooth, the initial coating of copper fouling could drag that process out over more rounds. The theory is that you clean initial copper fouling to remove it so that throat break-in happens faster and more completely. How much that translates into actual benefit is debatable (see upthread). At some point you decide it?s good enough, then you stop cleaning copper and allow it to accumulate to reach equilibrium. You know that?s happened when your chrono shows MV change with round count has settled down.
If the type of shooting you do requires you to carefully track MV variation then a short break in regimen *might* get you there in fewer rounds. The right way is what makes you happy; everyone else is obviously crazy.
This is one of those bench-clearing brawl topics.
Shoot bullets with copper on the outside, you get copper fouling. While it accumulates, things like MV change. Eventually it reaches equilibrium, and things change a lot slower. Unless you remove the copper, then things start changing fast again (w/r to round count) until equilibrium is restored. In this case, you don?t want change.
In general, there would have to be a good reason to do all that work and upset the copper equilibrium you fired all those rounds to achieve. Cleaning carbon fowling (powder solvent) won?t remove much copper, but using copper solvent to remove copper is something you really want to understand before you do it.
If you have reamer marks in the throat of a new barrel that you are eager to wear and lap smooth, the initial coating of copper fouling could drag that process out over more rounds. The theory is that you clean initial copper fouling to remove it so that throat break-in happens faster and more completely. How much that translates into actual benefit is debatable (see upthread). At some point you decide it?s good enough, then you stop cleaning copper and allow it to accumulate to reach equilibrium. You know that?s happened when your chrono shows MV change with round count has settled down.
If the type of shooting you do requires you to carefully track MV variation then a short break in regimen *might* get you there in fewer rounds. The right way is what makes you happy; everyone else is obviously crazy.
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