Ok, let's take a look on the info we have. Gunbunny wants:

* Rifle types (So Sniper & Shotgun classes)
* cheap 
* best not low quality
* means to increase quality
* possibly the licenses

We don't know the exact money limit, but we can check out the arsenal what is available at all.

* Sniper: Pioneer 60 - 500$, Acc 5, 10P, AP-1, Single Shot, AVA 2R (Run & Gun p.39)
* Sporting Rifle: Marlin 346SS - 1000$, Acc 4, 13P, AP-1, Single Shot, Ava 6R (Gun H(e)aven 3 p.25)
* Sporting Rifle: M1 Garand - 1100$, Acc 5, 12p, AP-1, Semi-Automatic, Ava 3R (Gun H(e)aven 3 p.27)
* Sporting Rifle: Marlin 3041 BL- 1100$, Acc 5, 10p, AP-3, Semi-Automatic, Ava 5R (Gun H(e)aven 3 p.29)
* Sniper: Ruger 100 - 1300$, Acc 6, 11P, AP-3, Semi-Automatic, Ava 4R (Core p.428)
* Sporting Rifle: Marlin X71 - 1500$, Acc 5, 12P, AP-4, Single Shot, Ava 6R (Core p.428)
* Sporting Rifle: Springfield M1A - 1700$, Acc 6, 12P, AP -1, Semi-Automatic, Ava 6R (Gun H(e)aven p26)
* Sporting Rifle: Winchester 2024 - 1800$, Acc 6, 12P, AP -, Semi-Automatic, Ava 4R (Gun H(e)aven p.24)
* Sniper: Remington 950 - 2100$, Acc 7, 12P, AP-4, Single Shot, Ava 4R (Core p.428)
* Special<sup>1</sup>: Parashield Dart Rifle - 1200$, Acc 6, SPEC, AP -, Semi-Automatic, Ava 6R (Core p.429)
* Shotgun: Defiance T-250 - 450$, Acc 4, 10P, AP-1, Single Shot/Semi-Automatic, Ava 4R (Core p.429)
* Shotgun: Krime Boss - 600$, Acc 3, 13p, AP-1, Semi-Automatic, Ava 11R (Gun H(e)aven 3 p.17
* Shotgun: PJSS Model 55 - 1000$, Acc 6, 11P, AP-1, Single Shot, Ava 9R (Core p.429)
* Shotgun: Remington 990 - 950$, Acc 4, 11P, AP-1, Semi-Automatic, Ava 6R (Run & Gun p.42)
* Shotgun: Franchi SPAS-24 - 1050$, Acc 4(6), 12P, AP-1, Semi-Automatic/Burst, Ava 12F (Run & Gun p.41)
* Shotgun: Winchester Model 2054 - 900$, Acc 4(5), 11P, AP-1, Semi-Automatic, Ava 6R (Gun H(e)aven 3 p.20)
* Shotgun: Winchester Model 2066 - 1000$, Acc 4, 11P, AP-1, Single Shot, Ava 4R (Gun H(e)aven 3 p.19)
* Shotgun: Winchester Model 201 - 1300$, Acc 8, 11P, AP-1, Semi-Automatic, Ava 8R  (Gun H(e)aven 3 p.18)

So, we have some things to choose from... Here's some words on each of them!:

"Snipers" aka Hunting/Sporting Rifles
-
All these contenders are chosen to be licenseable as either *hunting* or *sporting* equipment. This means, you likely just need one license, if you want to license them: Hunting can encompass a lot of the shotguns down there, while sporting rifles have the chance to have more AP... and Gun Heaven delivers most of them. 

Better choose a type of ammo that destroys itself on impact though: Hollow Point (4F) is a good example, but you better hide it well. You get it on the black market. Gel (2R) also doesn't catch a rifling that could be identifiable, as the bullet is squishy. It also is your goto for nonlethal, so pack a bit of it.

Pioneer 60
--
It's cheap, it's available, it's decently accurate with a starting char and packs a punch. For 500 bucks it is almost a disposable weapon... but surely not the prime example in the collection. It could benefit from a scope, but it has no slide to mount it easily.

Marlin  346SS
--
A sporting rifle. Not the best sniper, but it is decent in price/effect.

M1 Garand
--
Want a real vintage classic? Here you go. Not too expensive but very reliable.

Marlin 3041 BL
--
A decent contestor that comes with a scope. It exchanges damage with breaking armor.

Ruger 100/101
--
Mediocre price, but it packs more punch and is still very available. Good for something sold as a *hunting rifle* - decent low budget sniper. Packs a scope and shock pad already, and is well accurate for a beginning sniper.

Marlin X71
--
Decent price, very devastating on armor, adjusted for extreme environment and with a nice scope, this might be a contender for the crown jewel.

Springfield M1A
--
You don't need a full blown sniper rifle, if you can have the springfield. Nice price, good punch and well accurate, huge magazine (20!) and a hefty fine scope, this one is clearly the most top notch machine we have in this collection. If you have the funds, this one can be one of your crown jewels.

Winchester Model 2024
--
Want the famous lever Winchester? Here it is! It brings a scope, nice accuracy, good damage, nice magazine of 7... Just a bit pricy for a street runner.

Remington 950
--
The more pricy *hunting rifle* choice, with a smaller magazine in comparison to the Ruger, but more punch. Shoots slower also, and doesn't bring a scope or shock pad. Still, if you need the damage and are good enough to make the extra accuracy count, THIS can be your crown jewel. It can't take a Bipod or under barrel acessory though.

Parashield Dart Rifle
--
Not the cheapest and packing only injector dart ammo, this rifle-like weapon is your goto for nonlethal. Or to give somebody a golden shot full of H.

Shotguns
-
The benefit of shotguns is their ammo: loading them with either buckshot or massive slugs could be "regular", but some GMs count buckshot as flechette, ask yours. Both bullet types can't be identified onto a gun afterwards because both deform extensively after the shot - and shotguns don't have a rifling to begin with! Also nice is gel.

Defiance T-250
--
Your good old gas operated shotgun with a pump action backup. You can shorten it if you need to make it concealable, and it is cheap. Have a long and a short if you can spare the 1000 bucks for both. And you can license them as hunting weaponry. Not the most accurate though.

Krime Boss
--
Need something to pack a lot of ammo? This is your Goto! it is cheap, it has the largest capacity available on a non-forbidden shotgun, and it can be licensed. It is RARE though, so if you license it, you will get almost instantly recognized, if you use it. But if you are a troll, the adjustment is free.

PJSS Model 55
--
Two-barreled shotgun with a huge punch, hunting weapon, and it can be shot as a short, 2-ammo burst. A bit pricy, but it is a weapon of style and it is accurate in contrast to most rifles.

Remington 990
--
A bit less pricey than the PJSS, it is again a hunting shotgun. Pump action, and it has a slide to mount a scope for some better accuracy.  

Franci SPAS-24
--
Just included for the price, this Assault shotgun can't be licensed. It is a killer, it can shoot fast, but you can't license it - but if you live under the radar, you don't have to license your weapons. Better don't try with most. If you get this one, you get it out or the hiding spot, when things go ugly. REALLY ugly.

Winchester Model 2054
--
Pump Action goodness in modern style, large ammo (7!), well available and comes with a laser sight and a retractable stock, this one is a nice backup weapon for a sniper.

Winchester Model 2066
--
The younger sister of the 201, a bit cheaper, not as accurate, but a real magazine - lever operated for extra style and reliability points.

Winchester Model 201
--
Ahhh, the good old Winchester. Not cheap, no fancy features, but the damned most accurate shotgun on the market and licenseable. The downside: just 2 shots, in 2 barrels.


Addons
-
Now, we have our weapons... What to add to them? For each and every sniper/huinting/sporting rifle that doesn't come with one, get yourself a scope! It will make you much better at the ranges you want to fight with them. 

Bipods can be a nice addition too, but it doesn't give a benefit unless you have means to shoot more than 2 bullets with most guns - up till then, shock pads are enough. 

Laser Sight for a cheap Accuracy +1 is a must if you can't afford Smart (external isn't the worst though) - plus it can be back up the intimidation of your front guy. 

Silencer (9f) is also a very nice addition, but you need to get it on the black market and hide it well.

Pack a few spare clips...


Skills & Other considerations
-
The list above is comprised to only need one weapon skill: Rifles. As your pool will be Rifles + Dexterity, you want to have both high, possibly as high as you can get. This means your pool will probably be around 9 to 12 before additions from Smartlink or a WiFi Laserpointer. This means an average of 3 to 4 successes with any gun, so your goto rifle should have an accuracy of 4, better a 5 or even a 6, if you can afford it. If you even pack a speciality on your prefered type, you might really want the 6 or more.

Licenses are a double edged sword: A license can make life easy when getting somewhere. But it means the state knows your gun, and you better not leave identifiable ammo and casings behind. And you need to tie a license to an ID. So better invest in a really good fake if you want to go the (partly) licensed way. Hunting license is by the way probably the most encompassing and best available - as you can justify a lot of the above weapons (save the SPAS) as hunting equipment.

>Each type of item/activity permission requires a separate license. Things that
require licenses include hunting (bow and rifle), possession of a firearm, concealed carry of a firearm (separate license), spellcasting, and any Restricted gear or augmentations, etc.<sup>Core p.443</sup>



<sup>1 - Ask your GM if  this one counts as a rifle or an exotic weapon</sup>