When I play with the Vandal and Phantom it seems like the spray after 1 sec gets so huge that I can actually hold the crosshair directly on an unmoving target at medium range and they just live. Does this mean I should hope to one tap them with headshots and if I don't manage then I should go for peeking only? Because I tend to lose most trades where we stand and shoot.

I'm a new player and find these guns more frustrating so I took to using Judge in tight areas. I can often get some 3 or 4 kill rounds with this and it's often not hard to 1v2 or 1v3 in a tight space with this gun but it makes me wonder if I'm building a bad habit and I should focus on aim training or something with the meta guns. Advice?