Okay, 6 BR Norma. Now I need to pick a barrel length and twist for messing around in some matches when my retirement schedule is open. I am going to limit (if it is a limit) the choices to either Criterion or Shilen from Northland Shooters Supply. The below is a copy paste from the NSS site for Criterion and Shilen barrels.

Criterion
6mm


1-7, 7.5, 8, 9, 10, & 14 twists		 6 BR Norma,



Shilen

6mm/.243
- 7" * Special for VLD bullets over 100 gr. (available in stainless steel only) - 8" Special for VLD bullets over 100 gr.
- 8" * Ratchet rifled 4 groove (available in stainless steel only)
- 10" For bullets up to 95 gr. and VLD under 100 gr.
- 12" for bullets up to 85 gr.
- 13" * for bullets up to 75 gr. (available in stainless steel only)
- 13.5" * for bullets up to 70 gr. (available in stainless steel only)
- 14" * for bullets up to 70 gr. (available in stainless steel only)
- 14" * Ratchet rifled 4 groove (available in stainless steel only)
- 15" * Special for bullets up to 70 gr. (available in stainless steel only)