I know a 600lb gun safe plus contents sounds like a lot of weight, and it is, but not extremely so to experienced professional safe movers, and obviously, not to safe thieves who know what they are doing. Once you get part of it off the ground a little bit, a 600lb safe not bolted down can be handled by even one man who knows what he is doing with the help of a few fairly basic tools. I've watched two men, professional safe movers, load, unload, move around, and set up on location, ATM's (which are basically safes) weighing over 3,000lbs. About the most high tech tools they regularly used were a pallet jack and hand crank winch.
