6BR Neck Sizer Die Bushing

[cjames]

I'm doing my fist 6BR on a Savage target action with a Krieger barrel. This is my first bench gun. I'm fixing to order a set of Redding dies, brass, ect. But I'm not sure what size bushing to get. My rifle isn't going to be ready for about a month or so. And it will have a .272 neck. and I will be using new Lupua brass. I'm just trying to get everything ordered in one order and not wait until I get this in and then mic this and order more stuff. If i need to that fine. But I figured someone has already been threw this. If y'all could give some advice I'll appreciate it.

 

[hogpatrol]

Don't know what bullets you plan on using but order a .268 and a .269 bushing. That should cover most of them. Hog

 

[cjames]

I was going to start with the 107 SMK.

 

[savagedasher]

Blue box .266 .267 maybe even.265 I use .266 or .265 very seldom does a .267 work .
Good Shooting Larry

 

[cjames]

It'll be the blue box. I'm ordering brass at the same time as everything else. has anybody took a mic and measured the neck of a 6BR with Lupua brass? Just curious.

And thanks for all y'alls help.

 

[ehkempf]

Using the new blue box 6BR brass my loaded rounds measure .267. Dedending on the amount of neck tension you want will determine the proper bushing size. I am using .266, and with H4895 that has given me very good results. You normally go .001-.002 less than a loaded round.

Ed

 

[Killshot]

Blue Box brass gives me a loaded neck OD of .2675-.2680 - I use a .266" bushing in Whidden's DL die. Unloaded necks are .266" by my measure.

 

[cjames]

Thanks for the good info y'all.

 

[cjames]

After doing some reading, I think I might should consider a .270 neck.

 

[lrgoodger]

depends on the reamer you chamber your shilen with. Since Lapua changed to the blue box, the standard PT&G reamer neck is .2705. My smith didn't know about the changeover a couple of years ago and used his .272 neck reamer on a job for one of my customers. It works fine (deadly accurate). The only downside is the extra thou and a half of resizing stress on the neck with each firing. I doubt it will significantly affect brass life, but it might some.