Hi cheeta264,

The pressure siphoned off to operate the action is negligible. The resultant velocity loss is usually less than 25-50 fps. In other words....less than the standard deviation of many loads. It will have no appreciable bearing on the trajectory!

And as to the accuracy issue brought up by some.....I think you already know that is not a decisive issue. There are many BARs out there....that will shoot circles around many bolts. Not to worry!

Good luck!

Dave