I agree with StrelokPro.
As a MD of NRL22X/PRS Rimfire style matches (we shoot monthly out to 438y) I have seen both AB and StrlokPro work. However, I personally use StelokPro.
I sell a metric shit ton of Bergara B14R's (locally and here on the Hide) and I have never seen StrelokPro not line up to the T from 35y out to 438y and everything in between. Just like with all apps, "Garbage in = Garbage out. Enter all of your inputs exactly as they are on your gun. Also, use I use the DA for atmospherics and enter the current ambient temp for the powder temp. I use my old Kestrel 4500 (?) for current atmospherics.