Webb scored 3 and Peacock scored 3.
Webb was wrongly judged to have scored Peacock's last try. Some websites have updated it. Some haven't.

He passed the ball over the line to give Peacock a hat-trick.

thanks for that theres a guy at work who simply won,t believe me and has bet me a fiver that webb sc ored 4
skysports match facts state he scored 3 yet the match report says he went over for the last try

He went over but didnt put the ball down, great try that by the way Webb sent a class pass out wide.

no its def 3 like others had said he got over the line and waited for peacock and gave him the ball to put it down if your allowed in work go on the bbc iplayer and watch the super league show it will settle the argument once and for all