Dear Costume Designers for 19th Century Shit

Don't assume that people aren't paying attention. A woman's dress or blouse with an obvious zipper seam down the back is just as jarring as if someone in 1870s London is toting a Browning High Power.

The other thing is that when the characters are using period-correct guns, they almost always appear to be very old. They don't look like the new or newish guns that they would be.