6MM BR

[elkhunter7x6]

I am in the process of building a 6 MM BR, the smith's reamer is for a .273 no turn neck.
Is there any signifacant difference in this chambering with a .273 vs .272?

 

[tonedaddy]

272 or 273 should be fine. I have a 272 and use Lapua brass and do not have to neck turn. That extra 001 means nothing.

 

[carlsbad]

I have a 271 neck and if there is the slightest little burr left after length trimming, the round won't chamber. The barrel is very accurate, however. Many believe the neck tightness is important. --Jerry