Its just the Tavor, people love to hate on it, i know this personally. I posted pictures of targets of about 30 groups on different ammo, with 4 groups on vmax average of 1.7 moa, was called a liar and all sorts of insulting nonsense, after a while you just don't read comments like that anymore and you just pay attention to about 3 dozen people here on this forum that know what they are talking about.
They shoot low budget questionable quality chinese crap ammo get 4 to 6 moa and think thats it, thats the rifle, then they shoot sierra match kings out of their AR get 1 moa and compare the both and say the tavor is crap, the absurdity of people here is astounding.
People have to understand that you need to remove the shooter variable when doing a ladder test or accuracy potential of a rifle, Im a 4 moa shooter off hand, thats it, no matter how good a rifle is, if I shoot it offhand ill get at most 4 moa. Bench resting and nestling it in sandbags removes that failure on me on the rifle and limits my influence on the rifle's potential. The rest is barrel/ammo compatibility. Every barrel is different, every ammo type is different, wild variances can be expected between each barrel and each ammo.