Hey everyone. Quick question. I have a Remington long action kicking around that use to be chambered in .270. So, I would like to build a rifle with some balls. I have a Savage 10fp chambered in 6x but it doesn't hit with much force. What is the largest caliber a long action with a .30 bolt head chamber? I'm assuming a 7mm, 300 and calibers around there are all magnum bolt heads?