Thermal
August Member
You'd intuitively think so, but not really. The part of the casing where you would engrave is just holding the powder together, and when fired, it expands against the chamber, again just to kinda hold everything together while the bullet (the head out in front of the brass casing) goes on its merry way.Doesn't engraving things on a bullet risk causing it to malfunction? I'm no physicist but surely a smooth outside leads to better performance.
Eta: if you didn't know what you were doing and left a bunch of brass burrs hanging off it, I guess it could jam up trying to feed the round from magazine into the chamber but it would have to be a substantial amount of burrs.
Eta deux: when they say "engraved the bullet" they don't mean the actual part that goes out to kill mother ◊◊◊◊◊◊◊. They mean the casing. In the pic below, the casing is the pretty long gold (brass) part, and the bullet (properly) is just that copper looking tip at the business end. "Bullet" gets used generically for the whole shebang in the news to describe where the engraving is, when they should be saying 'casing'. The casing doesn't go anywhere when being fired. The actual bullet head does.

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