I'm in the planning stages of a Heavy barrel Target rifle most likely to be used in something like F Class open. And I'm interested in how I should space an adjustable butt plate to best use the 1" - 1.25" of adjustment in PULL they offer. Most of my rifles are currently in the 13.25- 13.5" PULL range. My .50 Cal Plains Style Muzzle loader is 14" to the trip trigger. The rifle I am building will be used both on a bench and in Prpositiontion. Looking at a 16- 20lb rifle. Anyone do any long distance shooting with this type of adjustable buttplate? And how do you use it. Is it adjusted once and then left alone. Or do you change the pull based on your shooting position? If so do you for instance shorten the pull on the Bench or in Prone? Just looking to talk with someone experienced with this.