I got the call from Northland on Monday and will be receiving my 243 Barrel on Friday. But before I jump into that I need to assembly my bolt head since I'm swapping from a wsm. I have all the parts and was wondering if there is anything I should not do or watch out for? I'm pretty good with small parts but since i'm jumping into this bolt head blindly I'm looking for pointers. I have read a few posts about just swapping the bolt head, but nothing on assembling it. I do not have my rifle or parts with me, I am out of town and can't examine them right now, so hoping to know how to do it before Friday. Also since it was a controlled feed how do I remove the old ejector on the action?