6.5 BR No-Turn Chamber Neck Diameter

[jfo1945]

What chamber neck diameter should I order for a no neck turn chamber 6.5 BR using necked up Lapua 6 BR brass and Sierra bullets?
What neck diameter chamber is the most popular for a no neck turn situation?
Thanks,
John

 

[dennisinaz]

Not sure on that brass, but my 260 has a supposed "no-turn" neck at .294". I wish it were .295 as the Lapua brass is thicker. Even .243 brass necked up has to be turned. Remington brass will barely work.

Good luck sorting it out- I would call a reamer maker and see what smiths are asking for.

 

[p17enfeild]

hi
the only way to find proper neck dai is buy your die's,or borow some) and neck same bass up,seat a bullet then mesure the neck and add .003'' to.004'', this will give you the best resultes !!

ps i tend toward.004'' as .003'' can still be bite tite