Well, my range bag doesn't carry guns, only range equipment. I have a separate case that carries pistols only (carries 4 easily), and several rifle/longgun cases.
As for my range bag for carrying gear, I recommend you do what I did. Go to Lowe's - get of the canvas toolbags with heavy reinforced bottom - $17.95 or so, and much more durable and larger than most range bags. I understand that camera bags and baby diaper bags are also useful cheap range bags. They can shove it on the prices they want for dedicated gun range bags, relative to the price of these mentioned.