12-30-2020, 01:47 AM
Klem Wrote:I haven't targeted copper in years.
I had two Boretech Copper Remover bottles (one full) which went in the bin after discussion with a fellow shooter who runs an institutional shooting team. Now I only target carbon, and only after several hundred rounds when I think the group size is opening up. The essence of the discussion was that you need copper to smooth and fill all the imperfections down the barrel. Get rid of it and it will just go on again with the next couple of rounds with your zero somewhere else until it settles. The idea that it is too much copper that blows a group out discounts other possibilities, like too much carbon or a worn throat or crown. Or a lapse of technique or just an unfortunate statistical anomaly. The occasional super tight group you think is all you is no different than the occasional huge group that is (of course) the fault of something else...copper!
In the last decade of shooting bulk groups and matches I have not noticed a degradation of group size over the life of barrels due to non removal of copper. Most of the time I don't even clean the barrel, unless it is a suppressed autoloader. The action area and BCG's are a different thing altogether and they get cleaned regularly.
High,
Why don't you forget cleaning copper for a while. Use a carbon-only cleaner and see how that goes.
What do you recommend for carbon only cleaning??