Poor judgement and awareness of your abilities by the Capt. I have flown with many new FO's and a large part of CRM is ensuring both crew members are happy with the approach or whichever part of flight your in. As a Capt the chances are he is very comfortable in his surroundings you however may not be. You were clearly not happy with the situation and those concerns should have been addressed. You may have made the mistake of entering downwind a bit fast and being pushed into an un stabilized approach but you recognised that and took corrective action in the form of a go around. There are no medals for rushing. If that means allowing a newer FO extra track miles instead of opting for the hero option then so be it. He should have used it to demonstrate the distance it would have take you to complete a safe and stabilized approach instead of showing you that a safe and stabilized approach was no longer an option. You were obviously expecting more track miles and should have at least been given the option to have them. If it were to happen again I would politely decline the tight turn even if the Capt has already accepted tell him you require extra track miles. If he still insists hand over control so he can 'show you how it's done' Your not his autopilot ! 300 ft stabilization in an NG is not a safe and stabilized approach. Good call for a go around and well done for recognising the need for one. A shame the Capt chose not to take the safer course of action.
