No sir, this is not a caliber conversion kit it is a magazine conversion kit to convert a standard box mag to a detachable mag and will only work with a .223 caliber.
Even if this did work the barrel on a 6.5 CM and a 223 rem are different size 6.5 is all 30 cal and 223 is a .22cal.

John, unfortunately it will not Sir. This is designed for conversion of a standard box magazine to a detachable magazine and will only work with a .223 caliber (22caliber rifle). Cheers and stay safe!

NO, this will not fit a Bergara B14 NOR will convert it to 6.5 Creedmoor. This kit converts a standard box mag to a detachable mag for .223 caliber. DOES NOT CONVERT CALIBER. I hope this helps!