I can try to help you next week. My GAP10 is finished and will be shipped to my ffl. I will have to wait until he gets back from shot show. I ordered mine with a 20". I have factory 120s & 140s. I will try to chrono it for you next week.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bward</div><div class="ubbcode-body">I've got one of the 09' SnipersHide builds with an 18.5'' barrel. It will push the 140's at 2700 or the 123's at 2825. </div></div>