What am I missing with Long Rifles?

Hello! Just got Foxhole and I've been enjoying it. Joined Collies because I heard it was the faction for disorganized morons, and I know where I belong. I feel like I've been doing well enough with the Argenti, I tend to get a few kills per life and often find myself living long enough to need to scavenge more ammo and weapons from backpacks(everytime I see a soldier's backpack with 15 plasma and bandages I cry), so I've tried a few different weapons and seen the methods to most of their madness. But is there something I'm missing with the Omen? Its stability sucks, it takes forever for the crosshair to shrink and if I move either myself or my mouse even slightly it loses a bunch of stability. I have so much trouble with it that sometimes when my choice is between an Omen with a full mag, and my side-arm, I just pull out my pistol and try to sprint between cover to be close enough to use it. I heard there was a bunch of infantry changes lately, did the Omen get a massive nerf in that? The idea of a marksman rifle is appealing to me, but it's stability is so bad that I find it better to forgo a few meters of range and just keep using the cheap Argenti.