I am also guilty of wasting ammo at 50 yards now and then.
50 yards?? Sh1t, I'm wasting ammo at 50 feet with my Defender!!
Good for practicing weak-hand shooting.
I didn't mention this drill earlier because I rarely run it!
MY BAD, this drill
must be run every range trip! It's that important!
It doesn't need to consume a lot of time or ammo, it just need to be done so the first time you need to call on the skill, it isn't the first time you practice it!
Try this; mentally or physically disable
(put your hand in your pocket) your strong-side. Do, with your weak-side, at least one draw and shoot from your normal carry position. Also do a weak-side reload (mag or speed loader) and cock (rack/release slide on SAs) expending a second series of shots. I do a total/minimum of 10 rounds for the weak side drill. (When I do it.

)
Another important drill I omitted from my earlier post is the tactical reload. This one is more a mind-set but still requires some muscle-memory training. The training is required because it happens during the most adrenaline heightened period you will ever experience and must happen during the co-processing of a multitude of other critical actions!
In a personal defense shooting, action is intense and usually over quickly, very quickly. It's usually over in just a few seconds, and what you do during this moment are as important as what you have already done! A good analogy would be the eye of a hurricane, the calm following enormous energy expenditure with the anticipation of round two starting soon! What you do during this calm will determine how you will fare in round two. How many shots did you take? You will
NOT know, trust me on this one and waste
no time determining the readiness of your weapon. With full attention on the downed Tango’s hands, (hands kill, everything else is distraction) determine if he is still a threat? Do not move your weapon from the ready position, start to move towards the BG with the intention of kicking his weapon out of reach. With the weak-side hand purchase, with your thumb and index finger, your back-up mag and bring it to the gun. As you visually keep the Tango in check and clear the area for other hostiles, release the partially-spent mag, catching it with the remaining fingers and insert the fresh mag. Put the used mag in your pocket,
NOT the mag pouch to avoid a reload thinking its fresh but keeping it available if needed.
..did you know the word 'targets' is typed with the left hand only?
Only here on the FTF can you get quality information like this!