Tight Reamer

[cuutter]

Hello, I have only chambered about a dozen barrels and ran into a situation I haven't run into before. On a SS and a CM barrel the reamer got tight and was hard to pull out. They were 2 different calibers with new reamers. It felt like the chips weren't moving out of the way while reaming and getting between the reamer and the barrel. I have been using the dark heavy cutting oil. Anyone have any ideas on what I might be doing wrong?
Thanks
Wayne

 

[Rustystud]

You did not give the frequency of your removal and cleaning, i.e. removal of the chips. Sounds like you are packing up your reamer. I would suggest more frequent removal and cleaning.

You might look into a flush system if your reameing frequency is going to increase.

Reamers don't clean themselves an chips make rings in the chamber.

Good luck

Nat Lambeth

 

[Preacher]

+1 on what he said.....

 

[cuutter]

Thanks guys. I do remove and clean every 0.050". I run the lathe at 90 rpm. Sometimes I will go up to 120 rpm. I feed the reamer appox. 0.005"-0.008" per second. Do you think thats too slow or too fast? I use the Bald Eagle Floating Holder. The reamer is a PTG. The customer bought the reamer. It is the solid pilot type. I buy the PTG reamers with the removable pilot. This has happened with them also. The SS barrel was a Rock and the CM barrel was a factory take off.
Thanks again for the input.
Wayne

 

[butchlambert]

Are you predrilling and boring the chamber before reaming?
Butch

 

[cuutter]

Are you predrilling and boring the chamber before reaming?
Butch

No Butch I am not. I haven't tried that way yet.
Thanks
Wayne

 

[butchlambert]

It may eliminate your problems.
Butch