This prone rifle in custom English Walnut is for long range target shooting, and probably will work well for F class with the addition of plates for the rests.  It has a Hart 6mm 1:8″ barrel, chambered in 6BRX.  The length of pull is adjustable.  The trigger guard is custom made for this stock based on trigger placement. The cheekpiece height is adjustable and if you notice you will see that there is a small clearance between the end of the cheekpiece  and butt plate so that the cheekpiece can be adjusted right and left and also pivots heel to toe.
 The  butt plate is ajustable vertically and is able to cantThe scope rail has 15 minutes of elevation built in.The pistol grip cap is custom Hawaiian Koa and is actually the mirror image  piece from the Mango stock (see previous post).