Deltapoint Pro with AR mount

[Diamondback]

So, I've ordered the Holosun 530. I have to wonder about the encoded waterproofing ratings of this kind of stuff. "With an IP68 rating, they are water resistant in fresh water to a maximum depth of 1.5 metres for up to 30 minutes, and are protected from dust." So, how long can they have a drop of water in what places and survive? I do shoot in severe conditions at the square range with light rain occasionally dripping through holes people have shot in the roof, or dripping condensation from the tin roof. ��

Seriously, I do wonder how an "IP68" would hold up in a long, steady rain....

IPX8 and IP68 look like the best resistance ratings on the market ATM. The characters after the IP are dust/particulates (first digit, X = untested/unrated) and water (second digit).
https://en.wikipedia.org/wiki/IP_code

Theoretically you COULD see an IP69 maxing the protection for both, but the proof testing on those is firehoses or industrial waterjets.

Are you leaving it outside for a few days, or are you gonna take it in and towel it off after a few hours? This is one of my big worries selecting an optic for the Longslide I'm building here in The Land Where Moss Grows Between Ears AND On Trees...