“Most accurate” is hard to say because the results are all dependent on how good your input data is.
In my mind, JBM Ballistics is sort of the OG, but and any of the popular ballistics app will spit out tables. Currently, I’m using Shooter and then exporting to Google Sheets to make my charts because I like the formatting control.
Most accurate is probably applied ballistics elite with custom drag models. I was blown away when it gave me accurate drop out to 800yds with only a 100yd zero and muzzle velocity. Usually I have to tweak quite a bit.
Hornady 4DOF is pretty involved but should get you very accurate as well.
But most of this likely doesn’t matter much if you’re not shooting past 600 or taking atmospherics/wind into account.
I recommend an app you can bring to the field/range with you.
I use Ballistic AE. Very user friendly, has Litz verified BCs for most bullets. Has a “Heads up Dispaly” feature that you can use to rapidly scroll to a distance and wind, even slope angle, and give you a solution in big numbers on the screen.
Has the ability to “true” your data based on scope adjustments at long distance or enter chrono data, etc.