Re: enviromental corrections-what do you use?
Horus Kestrel 4500NV. No longer must I take into account baro, humidity, elevation or any of the other problems associated with the environment ( except downrange wind ).
This little device calculates head wind, tailwind, wind values, baro, humidity, elevation, density altitude, heck even spindrift. There is even a place to enter angle of inclination/declination. It has the ability to store 50 different ballistics or 50 different rifles. This is great for shooting different bullets for practice if you are shooting expensive bullets at game.
Has a range card on one screen. Can give shooting solutions in either Mils, SMOA , or TMOA. and as far away as 4000yards. ( Like I am ever going to try that far )You tell it what Latitude you are at and it factors in coriolis.
It is waterproof. I have not tested that , but the advertisement claims it is.
There are some cons.....
Unit is small so it has a small screen. Not so ideal for people with vision issues.
Takes batteries. To compensate,I take extra batteries and I also print charts and take them with me.
Is expensive, but worth every penny. Seems like a very expensive windmeter until you see what can be done with it.
So anyway, that's what I use.