The main problem with this shot is getting enough distance from the sand. Trying to take the ball cleanly from the sand requires a very precise strike, particularly for less than a full shot, so taking the less lofted club and still aiming to hit the sand behind the ball is the better option. The club selection, combined with taking less sand than a greenside shot, will give you enough distance to reach the hole. Allow for more roll on the ball after it lands, as this shot will have less spin on it than a greenside bunker shot.
Be realistic about this shot. Depending on your lie in the sand, the height of the lip on the bunker and position of the pin, just getting the ball onto the green and accepting two putts may be a realistic goal.