It is easier to put your case on an ACCURATE digital scale, zero it out...THEN add the water. You can get a DIRECT reading that way and not have to mess around with wiping out the water IF YOU ARE CAREFUL. Digital scales are CHEEP so buy a couple, and get a JEWELERS scale as they are the most accurate and buy one that weighs two-three times the total weight of case and water or loaded case...they are more accurate and have a smaller range. READ and UNDERSTAND the fine print to understand the accuracy range...AND use at least two different scales to measure the final total weight as an accuracy check also.

Depending on the case brand you only need to check maybe 5 cases unless you are target shooting for money or fame. I don't bother weighing when I use Hornady, Norma, Lapua, RWS brass as I've found it to be more uniform than almost ALL the phaating around I did in the past trying to get uniform brass for my benchrester/varminting/long range rifles...I think the price of the brass is cheaper also considering all the time I spent messing about getting wet.

QL uses a mathematical algorithm to determine velo... and chrono timers can be WAY OFF especially Chrony's...my beta is usually ≈150 fs faster than my Oehler 33 when compared back to back, i.e., one in front of the other...AND...I've found QL to be way the heck of when working with MANY wildcat cartridges...DON'T TAKE IT'S OUTPUT VERBATIM...it is a PREDICTIVE software program NOT actual data...besides whatever powder/components they used are different than yours.

It is much better to compare YOUR data with several reloading manuals to get an average velo...if yours is higher or lower you need to re-evaluate your loading procedure and components.

I've been using QL since it first came out and use it ONLY for starting load workups for factory AND wildcats(I have many of those). I also have Powley "computers" going back to the very early NON-computer stuff. I DON'T rely on ANY of the predictive software programs any more except for starting loads...the targets tell me everything I need to know after working up to max accuracy.

If you have a factory/commercial cartridge then forget the predictive programs and use reloading manuals and compare the components they use to what you are using and also the barrel length...AGAIN READ THE FINE PRINT, it's full of good data.

Good Luck