Christensen Rifle chamber

[Hillrunner]

Looking for some help/ information, I just purchased a Christensen Arms Ridgeline in 300WSM. I have a 300 WSM in a Savage M10, how much difference is there in the chamber tolerances? I have some shells that were loaded for the Savage but they are too tight to chamber in the Christensen? New brass is fine but I wanted to break in the barrel/ test with some rounds that work really well in the Savage. The case length is correct and the COAL is correct, why the issue? I took apart the Full length die and inspected it, no buildup found. Thanks.

 

[Milo 2.0]

Measure around the case base, .2" above the rim, most likely the Savage chamber was bigger in that area.
You are way better off starting fresh with new brass.

 

[Hillrunner]

I will do that, thanks for the info. It was something new to me since it was a different rifle.

 

[Dusty Stevens]

There is a huge difference. The christensen will be right- like a custom chamber. Theyll be so different that i wouldnt consider the brass interchangable

 

[Steve morgan]

Looking for some help/ information, I just purchased a Christensen Arms Ridgeline in 300WSM. I have a 300 WSM in a Savage M10, how much difference is there in the chamber tolerances? I have some shells that were loaded for the Savage but they are too tight to chamber in the Christensen? New brass is fine but I wanted to break in the barrel/ test with some rounds that work really well in the Savage. The case length is correct and the COAL is correct, why the issue? I took apart the Full length die and inspected it, no buildup found. Thanks.

Savage Chambers are loose, christinson are not

 

[L.Sherm]

I'm betting the difference is who built the reamer, I could be wrong but from my understanding Christensen use saami spec reamers.

 

[Dusty Stevens]

I'm betting the difference is who built the reamer, I could be wrong but from my understanding Christensen use saami spec reamers.

Id be willing to bet savage uses saami specs as well. But a reamer will not cut to a repeatable, actual true size in a mass production environment. Even if they used the exact same reamer back to back there would be huge differences in size simply due to techniques

 

[L.Sherm]

That is true Dusty, but I had one particular reamer that was .003 at the .200 line to small.
Needless to say I dont use them anymore.

 

[Dusty Stevens]

That is true Dusty, but I had one particular reamer that was .003 at the .200 line to small.
Needless to say I dont use them anymore.

Either way in the end dont swap brass between barrels unless both were done by the same guy, same reamer, with swapping brass in mind when theyre done to start with.

 

[Uthink Uknow]

Always the hard working optimist, I’d take both barrels off and drop a case in each chamber and measure. Heck, they may be exactomundo.

 

[JBT47]

I agree with Dusty. Asking for trouble swapping brass between the two. I learned that the hard way years ago.

 

[DOGCAPPER]

Christensen equipment it top shelf. I bought a centerfire action and several barrels about 15 years ago. Everything on the action is still tight. I have not even adjusted the trigger.

 

[dragman]

Each gun should have its own brass if maximum accuracy is something you care about. Sized to the chamber it is being used in. No interchanging or mixing or switching.
I agree with above that savages usually have a looser bigger chamber and I know first hand Christensen is tight and spot on usually. I have used the same reamer with two gunsmiths and had enough different in the chambers I wouldn't mix them.