What do you all use for logbooks?
Premade or DIY
http://www.chebucto.ns.ca/Recreation/AMA/SniperLogBook20081217.pdf
https://www.recoilsports.com/2011/01/diy-rifle-logbook/
http://www.snipercentral.com/product/sniper-central-logbook/
I use ballistics AE on my phone.
Its easier