Gunsmithing .223 chamber reamer ?

[Millennium200]

I have gathered the parts for a Rem. 700 .223 build with a Brux 1/8 tw bbl. Which chamber reamer would you use for Sierra 77 gr. with a no turn neck?

Thanks in advance

 

[Bugholes]

Re: .223 chamber reamer ?

.253NK and freebore around .070

 

[deadeye]

Re: .223 chamber reamer ?

I talked with Dave at PTG and asked this:

I am looking for your recommendation on a .223 reamer set up for the longer 75gr AMAX and 77gr SMK bullets with NO neck turn and getting the best case capacity. I will be opening up the Remington mag box to allow for a longer OAL so that is not an issue and I would like to seat on or just off the lands.


Here is Dave's response:

I would recommend a 223 Match Fin with .252 nk , .078 fb, 1°-30

 

[Millennium200]

Re: .223 chamber reamer ?

Thank you for the replies. I thought about using my 223 Wylde reamer but I think I will call Dave and run your ideas by him.