With the utmost in all due respect: The world has changed. All modern high quality firearms do not require a break-in. The advent of more precise methods and materials----- ergo the CNC and better metal, have had a hand in this convenience we enjoy. The only exception might be the 1911 design which is still fitting-intensive. The manufacturer may suggest it as a cover their tail measure and it is probably a good idea to watch a given NIB firearm for 500 rounds. Many firearms have I owned that needed no break-in---Sig Handguns, Glock Handguns, Ruger Handguns, Kel Tec Handguns, Beretta Handguns, Springfield Armory Handguns, Ruger Rifles, Beretta Shotguns, Romanian AK's, Benelli Shotguns, Remington Shotguns, etc.