Mine's just an Allen Range Bag. One outside pocket, two large inside pockets and two removeable gun padded gun cases. Holds two handguns, ammo, tools, headphones, glasses and a multi-driver. Cost $30. What more could want, or need, from a range bag?
Sizing and choosing a range bag is a personal preference thing. For my needs I have two. The little one is by Wolf and it holds two pistols in well padded compartments, and up to about 4 boxes of pistol ammo. That's ideal for most of my range trips. I bought it because I got tired of lugging a large range bag with 4 padded pistol compartments, and room for enough ammo and cleaning gear to fight a small war. The temptation to load myself down with 75lbs of guns and gear in a single range bag was just too great.
I'm now looking for a lockable wheeled solution to hold 4 pistols, leather, ammo, cleaning and safety gear, basic tools, and of course 200-400rds of ammo. Something like one of these but with a customized upper compartment to securely hold 4 pistols. It's not as huge as it looks, it's only about 3' tall. The drawers would be ideal for safety and cleaning gear, and the bottom ideal for ammo.
I also have the Midway bag. It's really durable and provides quite a bit of useable room. The key term is, useable room. The only thing that burns my behind is it's made in China...just like most of our stuff these days...
Do yourself a favor. Avoid buying three range bags until you get it right. (like I did) Wait until the Midway large range bag is on sale for $39 (often) and buy it.
I wish someone had told me. Now I have two empty range bags.
The Midway bag is large, with lots of pockets, built like a tank, even has a place for a water bottle and a name tag.