One shot, clean with solvent and oil
Three shots while zeroing the scope, clean with solvent and oil
Four shots (magazine limit), clean once more.
My group shown above was done without any break-in. I took it out and bore sighted it at 50 yards with the eyeball looking down the barrel at the target. Got it zeroed and moved the target out to 100 and fired for effect.
I know barrel break in is very controversial subject but I wouldn't waste your time doing a barrel break-in. Read THIS ARTICLE ABOUT BARREL BREAK-IN.