Load development during barrel break in

[brentc]

Here is little article from Sierra regarding the velocity increase in new barrels. The only exception for me being the amount of rounds fired. Although, I have a Krieger that did this at about 120 rounds, most of my barrels stabilized at around 75. Let's just say that this happens to enough guys somewhere between 0-200 rounds that it's definitely something to watch for.

https://sierrabulletsblog.com/2017/03/15/velocity-increase-in-new-gun-barrels/

Here's another interesting discussion about it.

http://forum.accurateshooter.com/threads/tracking-velocity-changes-in-a-new-barrel.3782963/