Cleaning question

[Buglebrush]

I have a question I haven't found discussed anywhere. After extensive reading, I'd like to use CLR to clean a very stubborn carbon ring from my 6.5 PRC Seekins Element. I have a boreguide, but don't trust that none will get into the chamber/action. Why not just thoroughly flush with water after using CLR? What am I missing? Everyone just patches out the CLR with alcohol, etc... but it seems to me a thorough water flush would be safer? What's the reason for never using this method? Thanks

 

[COPrecisionRifle]

I feel like most people just try to steer clear of water and barrels getting together. Wouldnt take much for the water to sit around the bolt lugs in the action.