Want to Know How to Keep Your Gun More Steady Any Tips?

When shooting, make sure you don't have any bad habits.

Try shooting between breaths or hold your breath while shooting.
Twist the sling, if you have one, around your arm, that will help steady your shooting.
What I do while shooting, I lean against something, but have my stance the same as I would if I was shooting a shotgun.
Having a steady stance is important- its just not about having your upper body steady, you need to have sound footing.
Concentration is key. If you concentrate on what you'll be shooting at, that may help slow down your breathing, even if its just a hair.

You'll have to play around with the stance so you can find what works best for you. Also, a handgun stance is completely different.

Need To Choose Firearms For A Story?

I find it very interesting that writers come to this forum to help pick a firearm for some of their stories. I've seen it four or five times. I guess it's a cheap way to get some information from an expert (or at least those who claim to be).

It's also difficult if you don't tell us about the person who is using them (Police officer vs. street thug), how they are carrying it, or what they are doing with it.

So in my "expert" opinion I would choose some of the more newer and more common firearms.

Pistols:
Glock 19
Springfield XD
S&W M&P
CZ 75 B
Ruger MK III
Hi-point C9
Ruger GP-100
Sig-Sauer P229

I would personally not use a Beretta 92, Colt 1911, H&K VP70, or Browning Hi-power as those are kind of dated. Still possible for someone to have one of these gun, but I think they're overused in book and movies, and not as popular as they once were.

Shotguns:
Mossberg 500
Remington 870

Rifles:
Ruger Mini-14
Remington 700
DPMS AR-15 (M16 civilian-legal variant)
Mosin-Nagant
WASR-10 (AK-47 civilian legal variant)

Don't pick something ridiculous or hard to find. I would also suggest you go to a gun store near you and simply stand there for an hour or two. See what people are buying. A busy gun store will infact ignore you for an hour or two. If someone asks you if you want anything either say "No, I'm justing looking around" or ask them for a suggestion for your first handgun.

Edit: You're a writer. Sometimes that takes some research or homework. Sometimes it takes a little more than typing "handguns" into google images or asking a question on a forum.