6mm Remington
WKR
I like a knife with a 3-4" blade as that seems to be a sweet spot for me. Large enough but not too big. I carry either my Ruana Steelhead knife with the 3 1/2" blade or the 5AD with the 4" blade. In addition I also carry either my Buck 110 or Schrade folders. I just like having two knives. In addition I found ceramic sharpening rods on the internet for just a few dollars each and they work great for touchups should it be needed. The sharpener is shown below with my Benchmade mini-Barrage with it's 2.9" blade.
