If I remember to throw the cleaning stuff into the truck before I go to the range, I will run a patch of Hoppe's 9 or Butch's Bore Shine down the bore between "test lots", or loads that I've developed.
It's a matter of trying to keep everything else equal, I guess. I have noticed though, from my data, that air temp. and relative humidity play a bigger role in the performance of my loads than a cleaning regimen. Short answer... no matter how much you clean, your firearm will be a more stable test bed in an Arizona winter, when it can really cool down, than an Arizona summer when NOTHING cools off until Winter! :grin: \
Good luck.