I`ll give you some nice advise .
Take your very low budget plinker , and dispose of it .
Then , get some nice well earnt money , and spend it wisely on something that is worth it . Not something that you hope is up to the job , but deep down you know it isnt .
Once you have spent a reasonable amount , on a half decent rifle , you will notice that things like accuracy , power , and allround build quality are easy to obtain .
Again , spent a half decent amount on a scope , and you will find your rig is 100% better .
If you look around and do your home work , you`ll manage thi