Swarovski BRX reticle -- Any experience?

[Franco]

I'm considering a Swarovski scope to go with a 300 wsm (which I also have yet to purchase). I think the BRX reticle would be nice for longer range shots but I'm not sure if/how it would be adjusted based on which caliber or cartridge I use. Anyone know this? The Swarovski website was not helpful. Thanks.