I have a 5:11 branded range bag
http://www.511tactical.com/range-ready-bag.html that I picked up on sale at Palmetto State. It's a great bag if you carry a couple of pistols, lots of magazines, tools, knee pads, cleaning kit, first aid kit and of course ammo.
Optics Planet has a similar bag for less
http://www.opticsplanet.com/opmod-exper ... s-bag.html. The nice thing about both range bags is that they have a pull out divided tote that's handy when you're in a stall.
Both bags are big which can be a disadvantage if you only shoot a couple of times a month. I shoot several times a week, so I like to keep all the gun stuff in one bag. I'm thinking about getting a smaller bag for hauling stuff for local matches
http://www.opticsplanet.com/opmod-first ... y-bag.html
I got the larger range bag for the same reason you're looking for one, but I was able to salvage the old bag by throwing it into the washing machine with detergent and some borax. Alternatively, I've also saved other cat pissed items by rinsing it, putting baking soda to absorb the smell and leaving it out in the sun for a couple of days.
Have fun shopping!