I got a chance to borrow this gun for a night from Marmac and give it a pretty thorough test drive. It turns out that this gun is maxed at ~ level 87 BLP Pistoleer (Hit) and Ranged BLP (Dmg). Mirandax and Avery can both confirm this as they had a look at the gun as well. This is 5 levels lower than was originally speculated and definitely adds a bit to the gun's value.
PVP Test
The first test involved shooting at stationary people wearing various armors. VVV with Eon/6a with his mod fap was ofc invincible and was never in any danger of reaching below 150 HP. Next I fired at 200 HP player wearing shadow armor and found that it was able to kill them within 20 seconds if they were fapped by a mod fap while I fired. It did seem a bit easier with a foeripper to kill them in that situation as the reload was hindering the killshot timing. I later tested the gun on a few players with medium HP wearing Hermes and shadow with UR125 (L) faps while they ran around trying to stay alive. They really had no chance against it. The hermes would have been much harder for a foeripper to kill in that situation but the shadow would likely be about the same against either gun. After those tests I got a chance to try on Avery with his Imp fap and Infil/7(a) plates. Neither gun could do substantial enough damage to put him in danger. Lastly, I ran around like a lunatic in Twin killing naked people. In this situation I found it easier to kill people with this gun than the foeripper but I also died 2 times during its reload period.
Conclusion for PVP
BL1800 Preferred for:
Unarmored people
People with under 175ish hp and any armor or fap combination
People with 175-240 hp and any armor with L fap
People with 175-210 hp and any armor with Imp/Mod fap
Foeripper Preferred for:
People with over 210 hp with eon, infil, hermes, and Imp/Mod fap
People with over 240 hp with eon, infil, hermes, and UR175+ (L) fap
It really didn't make much difference for the lower end of the spectrum but favored the BL1800 in the middle of the spectrum and then went in favor of the Foeripper later on. An important thing to consider is whether you need a finishing gun vs. the opponent or whether your primary gun (BL1800 or Foeripper) will get the job done. If you need a tango shot or rocket launcher shot at the end to finish your opponent, the speedy reload becomes very important. If you don't need a finisher then you'd rather have more dps.
Hunting Test
BL1800 Preferred for:
Domes 1-2 at CP with gremlin or better for armor
Dome 4 at CP with shadow or better for armor
Mulaak'f up to Warlord solo no medic
Spiders up to Old Alpha solo no medic
Spiders of any size with a medic
Spiders up to Prowler no medic but with a team
Daspletors up to Mature solo no medic
Daspletors of any size with team or medic
Any mob with over 500 HP and high regen that requires little fapping
Foeripper Preferred for:
Dome 3-4 at CP with Gremlin
Globsters at close range
Spider Stalkers with team
Daspletors over Mature solo no medic
Any mob with a high attack rate
Any mob with low or high regen that requires fapping
Any mob under 500 HP
Any mob you need to fap quickly while killing suits the foeripper better. The BL1800 better for any mob that regenerates quickly and you aren't in a lot of danger of dying if you don't fap quickly on. The BL1800 makes L amps last a bit longer is a final little tidbit in favor of it (this makes a big difference when using elite amps). Lack of criticals was something I noticed when pKing and hunting. Not 1 critical in the first 100 or so shots on people (this could just be random bad luck). The hunting seemed to have a similar problem but this could have been just due to it firing less shots per mob (I can't really speculate on that).
I currently value this gun around 180-185k due to the lack of buyers capable of using it. The possible buyers already have great guns. The 3 main factors involved are 1) Capable of using it 2) Money to buy it and 3) Prefer it substantially over their current alternative. Those 3 factors must all be met before you'll find the right buyer. If someone has offered an imp mk2 for this gun, then I'll assume it is worth 200k or so. A price check isn't so needed for such a gun because only 20-30 people in EU can even use it. It makes as much sense to just take offers from those 30 people and see who offers the most.
I think anyone that can afford this will not be disappointed. It is a great gun. I don't know if I think it is better or worse than a Foeripper. I think I'd still prefer my Foeripper but I'm sure I have some bias as I've used it a fair bit. I do think the Foeripper allows greater flexibility in what you will hunt if you don't have unlimited resources with which to buy a bunch of different guns.
Thank you for allowing me to test it Marmac. I was initially cursing it for the first 1k ped ammo as I got 0 globals and hofs on dasps during that run but I went back and got a couple of nice hofs during the 2nd run to more than make up for the losses in run 1.
Sorry I rambled a bit and I hope this helps whoever is contemplating ownership of this lethal weapon.
*Sidenote* I doubt seriously that over 4 UL 1800 will drop in the next 2 years unless our player base doubles. There simply aren't enough people who can use it to justify MA creating 20 of them. As for L 1800's, I doubt we'll see very many of those in EU either. Maybe 10 maximum after 2 years.
Yeah I know some people with foe or MM will say this gun isn't so great and blabla but they'd be the first to trade for it. So goodluck and don't sell cheap 
