6XC reamer print

[Viper8]

I am looking for a 6XC reamer print (for Norma brass). Post yours please.

I emailed some reamer makers but have not received any replies yet.

 

[VooDooMagic]

I will tell you that mine has a .272 neck and it worked out great with this latest batch of Norma brass.

 

[hoverp]

I am looking for a 6XC reamer print (for Norma brass). Post yours please.

I emailed some reamer makers but have not received any replies yet.

Bump for the same request . I use Norma brass as well

 

[Pax]

I am also interested in these dimensions. Has anyone heard anything furter as to the various options. I know that Hugh H. and Dave K. are both grinding reamers for this chamber. I am interested in different freebore lengths and lead angles that work best with the 105 Bergers to the 115 DTAC.

I also plan to use Norma brass. Also. Can anyone confirm the loaded neck dia. to be .270?

 

[KMart]

I just measured 3 loaded with 107 sierras. They measured between .2702 and .2704. These were new, first time loaded, unturned Norma brass.

 

[rcw3]

I don't know how a .272" neck would work with the Norma brass I have without neck turning. Loaded necks on my new Norma brass is just a hair under .271" and .001" - .0015" neck clearance is not my idea of good (.0025" - .003" I feel is good for a no neck turn set up).

The Norma brass I have is right around .4685" at the web so the original 6XC reamers that are .4695" at .200" forward of the bolt face are a bit on the tight side for my liking. For me ideal is around .4705" there.

For most 105-108 gr bullets I would use a .090" free bore with a 1.5 degree throat angle. For the 115's I would use around a .145" free bore with a one and a half degree throat angle.

Robert Whitley

 

[DCRYDER]

rcw3, I think your web measurements should have started with a .4xxx".

I only have a piece of new Winchester 22-250 brass here right now and it measures .4635" at the web. If I'm not mistaken the 6XC reamers are supposed to be close to this measurement to allow the use of 22-250 brass.

Unless Lapua 22-250 brass is larger at the web, I would think a 6XC reamer would be closer to .465".

 

[rcw3]

rcw3, I think your web measurements should have started with a .4xxx".

I only have a piece of new Winchester 22-250 brass here right now and it measures .4635" at the web. If I'm not mistaken the 6XC reamers are supposed to be close to this measurement to allow the use of 22-250 brass.

Unless Lapua 22-250 brass is larger at the web, I would think a 6XC reamer would be closer to .465".

Thanks for pointing that out - error corrected on the .2xxx vs .4xxx (brain thinking one thing but fingers typing another).

I have a few 6XC reamers from back a number of years and they all were .4695" at .200" forward of the bolt face, but the Norma 6XC brass is "fat" there and .4695" is marginal for a reamer there with that brass.

Robert

 

[DCRYDER]

I should have my 6XC reamer in the next couple of days. It is supposed to be the latest and last revision in design. It is supposed to be throated for the 105 vld's and have .060" freebore best i remember. When I get the print and IF i can figure out how i will post it.

 

[hoverp]

I should have my 6XC reamer in the next couple of days. It is supposed to be the latest and last revision in design. It is supposed to be throated for the 105 vld's and have .060" freebore best i remember. When I get the print and IF i can figure out how i will post it.

Who did you buy it through?

 

[rcw3]

I should have my 6XC reamer in the next couple of days. It is supposed to be the latest and last revision in design. It is supposed to be throated for the 105 vld's and have .060" freebore best i remember. When I get the print and IF i can figure out how i will post it.

With the older versions of the Berger 105 VLD's a .060" free bore would work fine, but they will be back a bit far with the newer lots of Berger 105 VLD's and with a .060" free bore, if you then go and run something like a Berger 108 (or a 105 A-Max), you will likely have a fair amount of the bearing surface of the bullet back in the case. For me a .090" free bore is about minimum to run the 105-108 gr class of bullets and another .010" - .015" beyond that would not be an issue either.

If your reamer is not made, you may want to revisit things.

Robert Whitley

 

[DCRYDER]

It's already made. I have a 6mm throating reamer from ptg with a 1.5* lead just in case. I also have a 6mmBR reamer with a .030" freebore so the throater comes in handy.

 

[DCRYDER]

My mistake....it has a .104" freebore. It is a pt&g removable pilot.

 

[VooDooMagic]

The 6XC Norma brass I bought from SSS a little over a month ago measures .467" at the web (.200" up from the base), and the unturned necks measure .270" loaded with 105 gr. scenars.

 

[wnroscoe]

I have two 6XC reamers/prints, both from PTG. Rifles built with both reamers have shot extremely well. I personally use the .103" FB reamer and run the 105 VLD Bergers in mine with a 1-8 Krieger. I use the Norma brass that I get from SSS/Tubb. I turn my brass to .270" loaded but, for a true no turn, a .275" Nk is best.

For the 115 DTAC's:
.272" Nk
.148" FB 1 degree 30 lead
.470" @ .200 above bolt face

For 105VLD's or 105/108's:
.273" Nk
.103" FB 1 degree 30 lead
.470" @ .200 above bolt face