Barrel Break In

[BearGuy]

Understanding that each barrel is different, what is the normal amount of rounds before a barrel is “broken in” and the fps is stabilized for good?

 

[tumbleweed419]

I do not have a "barrel break-in procedure" as such. I just shoot the rifle and once you have around 60 rounds down the tube you have got all you are going to get out of the rifle. I also do not clean until it stops grouping. You are going to get a lot of different opinions here. Do whatever you think will work best for you.

 

[packer58]

You are correct in saying all barrels are different, IMO the only true way to determine when YOUR barrel is done speeding up is to shoot through a chronograph to determine when your load has leveled off.

 

[archp625]

About 200 Rounds here recently. One was a CA barrel, and the other was a C6 barrel.

 

[Dmoua]

From what I’ve seen, usually around 150 rounds is when the barrel will stabilize.

 

[Flyjunky]

I usually see around 150 as well. My latest benchmark was right at 140 according to my notes when it finally leveled off. I know one very prominent builder who has many world record holding builds who doesnt fine tune a load until at least 200 rounds are down the tube.

 

[sierracharlie338]

I’ve had barrels as early as 70ish rounds all the way up to 200 before they level off on speed

 

[wind gypsy]

The last couple it seemed like were still speeding up in the low 300 round count but these aren’t magnums. And it’s not big jumps just gradually creeping a little faster.

 

[Bater]

100-250 for me, with magnums generally leveling out quicker