New Cut-Rifled Barrel -- Best Break-in?

[Ironworker]

New cut rifled barrel: Barrel Break-in. I ran a bore scope down this new barrel(mullerworks barrel), which looks like a surgical instrument. Krieger bbls says it is the throat that needs attention,

 

[L.Sherm]

Krieger bbls says it is the throat that needs attention,

Its my opinion to as long as there's no tooling marks and its properly lapped.

 

[Bc'z]

Let'r eat!!

 

[6.5 forever]

Run a patch thru it. Then go shoot it.

 

[K22]

I have never gone through those tedious so-called "barrel break in" procedures but of course, I am not an expert. In my experience, after the first few shots and some copper has been laid down, the barrel in "broke in".

However, you should watch Erik Cortina's video of barrel break in. It might surprise you.

 

[Bc'z]

I have never gone through those tedious so-called "barrel break in" procedures but of course, I am not an expert. In my experience, after the first few shots and some copper has been laid down, the barrel in "broke in".

However, you should watch Erik Cortina's video of barrel break in. It might surprise you.

The meat grinder?? Lmfao

 

[DaveTooley]

Be gentle and watch for copper the first 20 rounds or so. Then let'r rip.

 

[K22]

The meat grinder?? Lmfao

?

 

[Idaho-Lefty]

New cut rifled barrel: Barrel Break-in. I ran a bore scope down this new barrel(mullerworks barrel), which looks like a surgical instrument. Krieger bbls says it is the throat that needs attention,

YUP, I fully agree with, Krieger,..
I "Lightly Polish", the "Throat area" ( Breaks sharp Edge, caused by, the Chamber Reamer ) on ALL, my Factory and after Mkt Custom Barrels after, the Chamber has been Cut with, JB's "Slathered' on a Patch, over, a Bronze Brush, 10- 12 Strokes, all ONE WAY then, CLEAN Thoroughly, TWICE !
Shoot 5, Clean, shoot 10,.. Clean,.. DONE !
The Throat holds, way LESS Carbon and the Barrel way LESS,.. Copper !
And, Peak Velocity is reached,.. sooner

 

[Bc'z]

?

Wait till the end its worth it!!

 

[6.5 forever]

However, you should watch Erik Cortina's video of barrel break in. It might surprise you.

Nothing he does surprises me...!

 

[JFrank]

Be gentle and watch for copper the first 20 rounds or so. Then let'r rip.

I don’t break in a lot of barrels but I’m similar n watching for copper. Clean after each round until it started to group, then I shot a ladder just for the heck of it.

 

[Bob3700]

Shooting n cleaning the newly chambered bbl is nothing more than I using the bullet n powder charge to lap the tooling marks away that the chambering reamer left.
Because the bbl is turning during chambering, radial tooling marks are left in the throat n on the lead of the rifling. Those machine marks are smoothed by the firing of rounds during the break in process.
When we chamber our bbls, a mild lapping compound is used in the throat to smooth those tool marks away. Using this method, the bbls are ready from the first shot to perform their best. U save time n components using this method.

Different ways to skin the cat, n the cat is still skinned!

 

[JMayo]

I like taking it slow. "Heat treating" it. Cleaning every couple until the copper stops. Then heat it up and let it totally cool a bunch of 5- 8 shot times.

I've tried it both ways and it seems the barrel wear is better with the slow method of breaking it in.

Just my 2 cents

 

[47WillysGuy]

Clean the barrel real good. And shoot it!

 

[butchlambert]

Well, A couple guys addressed the problem properly!

 

[Sleepyhollow]

Give it a good cleaning then first form 25 pcs of brass fotlr that barrel and clean again. Start load development. I play that break in slowly crap. Wasn't worth it for me. I'll know in the first 25 shots if the barrel gonna a good one or a junk one.

 

[Coyotefurharvester]

At least make a distinction between sporter/hunting rifles and competition/varmint contours. The quality of the bore/tube maybe the same but how it will be used, probably much different. If a hunting/game/field rifle, zeroing the scope is a good time to use the shoot/clean repeat break in. As a hunting rifle probably/hopefully won't be used for long strings of fire.

 

[clowdis]

Follow the manufacturers break in instructions. Oh, Mullerworks doesn't have any.

 

[jackieschmidt]

All of my barrels are premium Bartliens or Kriegers.

I fire 5 shots, cleaning after each. I then shoot rhree, 2 shot strings, cleaning after each, and that’s it.

I know Benchrest Shooters that do nothing but shoot it.