Yes
None.
On some models, yes
Browning didnt make a 22 bolt action single shot. They made the T-Bolt and A-Bolt models in .22LR, but both had magazines. None were single shots.
Browning does not make firearms, FN does.
Browning did not make the Luger
Browning.
No.
Browning did not make ammunition. They contracted another company to make it for them.
No there are no cheats for promotions, just make as many friends as you can and make sure your Sim has the correct skills needed for it's job and you will get promoted.
This question needs to be narrowed down to Model, make, guage or caliber and also condition. There are dozens of Belgian made models and values ranging from $200 to over $30,000.
No
Because John Browning is God himself.