I've noticed in every 40k game I've played in person, as well as the game on here, that players do their damnedest to avoid having to use the ready action by dropping weapons rather than taking a half action to stow them. This seems to indicate an issue with the game, driven by actual play-testing. In my opinion, this shows that the ready action is unfun, and prevents players from doing interesting things. There are some responses to this issue.
1) punish players for dropping weapons. This seems like a bad idea to me because it involves more tracking (how many times do you drop a gun before it gets damaged) and because it's punishing the players for wanting to spend their turn doing something interesting. Also, making it a roll to get a free ready action is adding way too much randomness and further chances for screwups for an action that isn't even that interesting (don't roll unless it's interesting!)
2) Make readying and stowing a free action that you may take once per turn, one of each. Just let players get into the fight. You could add that heavy weapons always take a half action to ready or stow, and change quick draw to allowing you a bonus to initiative on the first round of combat (or even just always going first).
I know that the ready action serves a purpose of enforcing reality on player actions. However, these are all people trained in at least one weapon, able to shoot a target on average about 45% of the time with a single shot. This is well above the average for most people, and I would guess for someone that well trained with a gun that they would be able to draw it pretty easily and quickly.
What do other people think? This has some actual playtest background behind it on my end, so I'm curious what other people have experienced. Is your 40k universe littered with dropped weapons?