by Gwion » 23 Nov 2016, 12:41 pm
I give mine only a light clean to remove some powder residue, etc. I only scrub copper when accuracy starts dropping noticeably. This is working on the 'copper equilibrium' theory for first shot POI consistency.
Might be bollocks but it works alright for me.
Also, I might just be lucky but both my 223 and 7-08 barrels show very little copper even after 100-200 rounds between solvent scrubs.