I was a serious barrel cleaner. Every 30 rounds. No bullshit.
My last 3 guns (7-300 NMI, 6 PRC, 22 creed) I decided to let loose of my OCD and test your finding for myself. Because that’s what I do lol.
Each rifle had a great baseline for accuracy and velocity. I then shot each of them over 120 rounds without cleaning. Now that is INSANE for me haha. I saw no documentable decrease in accuracy, or anything questionable with the velocities in any of the 3 barrels.
I then cleaned the barrels to make myself feel better hahahaha. But have no question in putting at least 100+ rounds on barrels now without cleaning. Thank you