BC I agree with you and totally understand that about the throat.Here is what I am trying to say in order to get a 22-250 to the same vel. as a swift you have to load it balls to the wall at or near max chamber pressure. This is more true on lighter bullet weights. I have had a 22-250 and I think it is a great round, I just like the swift better , I like the case capacity and its accuracy from my ruger. I just dont think when you look at all the facts it is a fair comparison to just say it is a barrel burner ( throat erosion) More so then the 22-250, .223wssm, ect when all is on the same playing field. I dont care what federal says or hornaday, winchester, or remington I have loaded for both and it is easier to get 4000fps from a swift then it is a 22-250. Not that it is a bench mark but it is a place to start from .