I was at the Super Shoot on Friday and after hearing this story it does not surprise me. This was the first event I have ever attended so I didn't know what to expect. There was absolutely no security, no front gate to pay to get in. I walked around this whole event to take it all in and everywhere you looked there were guns resting in their cleaning vises with no one in sight by them. Before hearing this story and as I was walking around, I just couldn't believe what I was seeing. Like I said before, I am new to this so i didn't know what to expect or what the norm was. I understand that the equipment needs to be left out like that because it would be such a pain to haul everything back in and out each time. I know that this specific situation did not happen at the range but at a gas station but I was still amazed. It's just unfortunate what today has become. Years ago we would leave our windows open when we went to bed, leave our doors unlocked when we left the house, but now it's completely different. Most people lock themselves inside the house when they are home during the day. More robberies are happening during the day now more than ever.
I'm sorry that your rifles are stolen and maybe someday we can come up with a way to track these stolen rifles at events like this, i agree that each rifle should be checked in at the start of a match for this reason. It's just like a cashier asking to see your photo I.D. when you use your debit card. Some people get upset when they ask for your I.D. but in reality, that person is doing you a favor.
I hope they find your guns. Good Luck.