Did I play this right?

[ScareCrowAKA]

Ok thanks... I counted 15 outs and then did the whole, 4 x outs, 2 x outs thing... 60% so I went for it. I know the rebuy puts me at a disadvantage but its really the only tournament, timewise that I can play weekly. I play in a 40$ buy-in freeze out once in a while on mons and tues at 1pm, but I have to pick my daughter up from school at 335 most days... The rebuy starts at 10am...

It was the 6th hand of the tournament and me and the other guy had pretty much the staring chips, 3k... There were 5 limpers into the flop... 2 acting behind me. The guy was behind me. I was the initial raiser after the flop, the pot was 250... I raised to 350... he raised to 700... I went all in

what amount of outs would you guys consider a large amount of outs?.. 12? I think that pretty much makes it a coin flip after the flop... I understand the odds concept of hitting your hand related to what you are getting on your money 2:1, 3:1 kind of stuff... I was just wondering if there is a number of odds you consider worth "going for it most the time"