I love shiny brass in .300 Win Mag:
There is something about ability of the cartridge to be able to reach out and whack a target at 1000 yards away on your first shot that I find very satisfying. The first time I shot at 1000 yards I put the first three shots into the 10” diameter X-ring. That is a good as accuracy as you can expect to see at a public range when some random person is shooting a handgun at 10 yards. And at 1000 yards it is delivering twice the momentum to the target as a 9mm handgun would at 10 yards.
I assembled 212 rounds of .300 Win Mag this weekend. Each charge was individually weighed. Ignoring the time to prep the brass, the average time for assembly of a single round was about 75 seconds. When reloading for .40 S&W it is about 4.5 seconds.
It was worth it.