A good gun done right, doesn't need to be "broken in"; that's an urban myth & a fallback for a poor gunsmith/product.
Verifying reliability (different from durability) does need to be done with either various or a specific ammo.
MM
Agree 100%.
Further more the odds of failure increase naturally the more you fire the weapon. If you don't use something it can't fail, were as the more you use something the greater the odds of a failure.
