I have been to a few local shops and asked this question myself before. What is the best gun for apartment use. (I live in a one bedroom apartment. i.e. poor college student) and the first words out of every single one of their mouths were get a shotgun. You can find this on many forums too. Any 9mm might go through the walls. Just dont miss.
I got my mossburg 500 for around 180 here in NC and have loved it since the day i bought it. yeah its a skeet model, but i will use it for self defense if i have to. I get multiple uses out of it and it works fine. As for a site that has the prices that are pretty good prices. Around here we have Hyatt gun shop. It helps me look up all different kinds of guns. I don't know about the prices where you live. But i believe that this website might give you a look at which guns cost more and what you could maybe be looking at.
Pistols
http://www.hyattgunstore.com/pistols/?sort=price
as you can see there arent many semi autos in your price rance. Which isnt that big of a deal. For what its worth there isnt a large chance of you getting into many spraying gunfights in your apartment. Not enough space and there is only one way in or out. the robber will more than likely just flee when it gets a bit hairy since he will be next to the door anyway. As for semi-autos, at least here in charlotte nc, your a no go. And please dont buy that hi-point 9mm. Ill post a few videos at the bottom of this post to show you why. they arent safe and fail to work. AKA: Not a very good self defense gun. Just saying if it were me, i wouldnt buy it.
On to revolvers.
http://www.hyattgunstore.com/revolvers/?sort=price
If you scroll to page three. i think youll find your best pick in the taurus model 85. and you cant beat the reliability of the revolver. its about 30 dollars out of your price range. and I realize this. but you just wont beat the preformance of this gun for the price. Its a great all around weapon that is still sub $300 which i think your finding out slowely that there isnt really a such thing as a "NEW" sub $300 home defense handgun. :banghead: I know it sucks, but life goes on. The taurus is chambered in .38 special. while this is good stopping power, year it could go through the walls. Hollow points that have low velocities are good for what your looking for. They break on contact so the bullet wont fly as well after it hits that wall. but it could still be potentially dangerous. As would all ammo at such close range in an apartment setting. You just need to know the layout of the apartments around you. if its nighttime dont shoot towards a bedroom. and if its daytime, take note of who is always around and who is at work. thats what i do.Call it weird, but i know that from 9am to 5pm the people around me are at work, all but for one elderly man that lives above me and the room next to mine is a woman with a child. so i need to steer clear of shooting in those general directions. as for night time know the floor plans of each apartment and keep bullets from flying to the bedrooms.
I think a shotgun is a great choice for you.
http://www.hyattgunstore.com/home-defense-tactical/?sort=price
These are home defense shotguns. Small, lighter than field guns. And pump actions are so reliable they cant be beat. There is no better sound than a pump. believe me. The sound of a shell getting chambered in a pump shotgun will hit any robber like a sack of bricks. no one and i mean no one wants to be hit with a gun. But when you get into the reality of dealing with multiple bullets instead of just one you will run away no matter how much PCP you just took.
Like I said earlier I own a field model mossburg 500. It costs 30 dollars more for the field model. but you will get a few more uses out of it. I skeet shoot with it and it stays right next to my bed. Thats just personal preference.
If it were me. I would not hesitate in getting a shotgun. lots of fun at the range and deadly with the right shot size. and you can read on many different forums what the best shot size is for apartment use. Its a hotly debated topic. I just have birdshot for skeet but put it in for home defense. some swear by buckshot. its a personal preference.
Im about done here. If you have any questions feel free to PM me. I am no expert but i will always give you my opinion.
Like I promised here are some of the Hi-point 9mm videos.
http://www.youtube.com/watch?v=vPWtXMm68Fg
http://www.youtube.com/watch?v=2FoWpog5KU4
This guy says its dangerous and unreliable he even racks the slide with only one hand.
http://www.youtube.com/watch?v=Tlkgqmp6AtM
Oh and check out buds gun shop and gallery of guns. both will ship to your Local gun shop.
http://www.budsgunshop.com/catalog/index.php
http://www.galleryofguns.com/
When you get to gallery of guns, click on gun genie.