Up here in Canada they don't seem all that hard to come by yet. Earlier this year i had the 458 itch and one phone call scratched it. A week later i had it in hand. Last week i decided to go for a brand new American Safari in 416Rigby. Again one phone call and i had it in hand yesterday. I still have a 416 from the 90s that i have a B&C stock coming for. I'm thinking, just for the pure joy of it, that i may have it rechambered to 450. Depends on disposable funds.