DarSum:
TM 50 yrd wedge is full bs just under 2 avatar movements lol Try taking the yardage x .3
So for that shot 23 yrds - 23 x .3 = 29 yrds So whatever shot/club you have in your bag that goes 29 yrds.
I believe you probably meant yardage x 1.3 (not .3), Dar. As it happens, that's the value I've settled on for longer (>25yds or so) bunker shots from 30/40 CCC sand. In practice, I add the distance to the cup in yds + elev in ft., then multiply by 1.3. That is with CG wedges and Nike balls, so other equipment may vary.
Example: 25 yd bunker shot to pin elevated 5 ft: (25 + 5) x 1.3 = 30 x 1.3 = 39 yd , full backspin. Roughly 70% power, for my 64 deg wedge.
As noted by others, slope from landing area to the pin will require fine-tuning that power. About 2/3 - 3/4 of total distance is carry and the remainder is roll-out. If hitting to an uphill slope on green I'll add a bit more, if shooting to downhill slope I'll take some power off. Note that at least 1/4 of the total distance is roll-out, so to pins cut close to near edge of green you will have to accept a longer come-back putt, since you must carry to at least the fringe.
Here's a 38 yd up 4 ft shot. 90% CG15 64 degr wedge (nominal 54 yds from fwy lies): //www.wgt.com/replay.aspx?ID=f3ef2780-0984-435e-a858-a19a00f80532.
Alternatively, for shorter shots, I like pitches from 30/40 sand, unless ruled out by having to get over a high bunker lip. You'll get similar carry/roll numbers, and ~30% reduction in 'rated' distance. Again, using 64degr CG15 in pitch mode (17yd nominal dist) 10 yd to cup, with downhill roll at finish ... full backspin, 80% ( ~ 13.5 yds nominal from fwy) aiming a few feet left of pin - and a nice coast to sandy save range //www.wgt.com/replay.aspx?ID=23a215bc-9d95-4853-9879-a19a0135f9db