How to shoot better at the range?

Shooting and marksmanship is a science and an art. There are MANY things one must learn to master it. Don't go chasing too many "tricks", as the best way to improve is to master shooting and not follow rumors or tricks.

Given your MOS, I'm guessing you will not have nearly as much range time as you want or need. Seek out NCOs in your unit who are top shooters and ask them to help you.

In the meanwhile, study all the key terms and concepts associated with marksmanship. Get a copy of Army Field Manual FM 3-22.9 and understand the basics on your own. Focus on the fundamentals in sections 4-16 through 4-24.

Here is also a Marine Corps video that is a bit older, but the basics of marksmanship don't change: https://www.youtube.com/watch?v=C9oF05mqdvo

Check with the NRA in your area. They offer classes and have a marksmanship program... The program is self paced...good luck...

Watch your leaders. It helped me. I remember the day when I was stationed at Tripler Army Medical Center in Hawaii when I received a notice to report to the range and re-qualify on the 1911 Colt .45 (yes, it was many years ago). We were given three clips of 7 rounds each and one pistol. The colonel next to me scored 25 misses. All 21 round as well as the three clips and the pistol that he threw at the target. Then left. It did a lot to reduce my tension.