Can Gyoro immobilize Saiyan saga Vegeta?

Or even outright kill him?

Not even by 300x gravity?

not even close. Vegeta shoots her once with a ki blast and smokes her taco. He has too much willpower to even be greatly affected by her.

How much gravity can she produce?

@kidolio: 300 according to the latest chapter. Apparently, all it did was giving Tatsumaki a shoulder massage

Yes,but she still can't kill him with this i think

Gravity is really weird in Dragon Ball. Judging by actual feats even Kid Goku should have been able to move just fine on King Kai's planet in x10 gravity.

So people forget how fast they move under those gravity? Also, it didn't specify 300 to exactly what where DB compares it to Earth's gravity. It could be just her Telekinesis being 300 times amped. Regardless that's no where close to affecting Vegeta to actually kill him. Vegeta's weight is 56kg under Earth's gravity, 300 times that is 16800kg or 16.8 Tons isn't enough. A much heavily Injured Vegeta survived a fall from Great Ape Gohan who weighs more than 100 tons.

gravity training in db never made sense.

Yeah she can