I first noticed the Problem with my HARDCORE character, when he throws the weapon on totally flat ground, I was able to find and recover the weapon.
The next time this happended to my REGULAR char, the fully equipped, fully pristine AKM was thrown after going prone on a slight slope, the weapon was nowhere to be found.
I then tested this behaviour with a combat knife, with a big log, with sticks.
All this items could be picked up from the ground.
I then left the game and renamed my config "Styrlu.DayZProfile", after logging in, holding sticks in my hand, I could go prone without throwing. I thought I had solved the problem, copied my favorite Servers to the new config files, edited my gfx Settings and user Name and did the following key bindings:
FAST FORWARD = 2xW, THROW key disabled
I then played again with my REGULAR char, after I found a Mosin, I went prone on a small hill, the char would stand up and throw the gun away, which was nowhere to find and lost.
I then put my FNX in hand and got prone, but nothing happend.
Thinking the Problem might be Server related, I switched server and found an AKM.
Guess what, the AKM was lost after the first time I got prone with the weapon in hand.
DAYZ is now unplayable for me!