Hard chrome is rust resistant, but not as much as other finishes.
You have to decide - NP3 is the best against rusting, but is softer and will wear in a holster. The hard chrome is about the hardest aftermarket finish you can get, but there are some of the polymer finishes that resist rust better.
You sure you ain't covering any other holes with the gun?
Great looking gun!
Come on Ship'... 5 or more holes, or it doesn't count!!! The magazine articles throw out the worst two as "fliers"... ie they suck at shooting!
What's the November shooting contest anyway? Hopefully not turkey feathers again!
Here is one from my last session with the USPc 40. I shoot a whole mag's worth or it doesn't count for me. 21' unsupported.
And the full-size, 45... 21'.
So I cheated a little and used the laser and I was using the case as a support. Even still, that's 12 rounds of 45.