Just got ORYX chassis, for my SA hinged floorplate barreled action,Mounted the front vent holes on action are 3/8" above top of chassis,the flat on top of rear tang is .110-.125 above chassis too,the end of tang is flush. Action IS Bottemed out in chassis. Top of ejection port is 1/4" above top of chassis. 1'st chassis i've ever had.Seen a few photos of other rifles,they did not look near as high,appreciate any info