My brain is stirring and i am thinking about a 6dasher for a coyote hunting rifle. I have the action and a blank and stock. I need to decide now how short i can go with the barrel and still get the velocity i need to make this all work properly. I would like to go 20-21' so it will be compact and handy rig. Whats your thoughts on barrel length with the dasher? You may be wondering why i am thinking of the dasher for a coyote rifle so i will tell you why i am thinking of doing this. My f-class rifle will be a 8 twist dasher so if i used the same reamer on this coyote rig i could use this to fire form my brass while i cut a few dog in half. I just love this chambering i guess so that is another factor. Lee