In hunter class you could manage with just a single 5 shot mag when I did it. Have a few rounds sitting in an open saucer or something and you will get an extra shot or two away. Shooting 10 shots quickly was just as effective as 5 shots carefully. Advice: be prepared to do some quick position changes, even a short sprint between shots. keep your ammo clean and dry, no fumbling. And know your drops without having to dial.
Bookmarks