Pre-Covid, it seemed like 6.5CM match ammo was similar in price to 308 match ammo, of course that means nothing in today's market. I have no personal experience, but I've read and heard from a lot of people that 6.5CM has far better ballistics than 308. Shoots flatter and is less affected by wind, etc.I'm kinda wishing I'd gone with 6.5 creedmore, especially since the Bergara rifle I really wanted was available in that caliber.