By Reuters Staff 2 Min Read July 27 (Reuters) - Australian shares climbed to a record on Tuesday as mining and energy stocks jumped on firm commodity prices, with OZ Minerals rising to the top of the benchmark on gold output forecast hike. The S&P/ASX 200 index rose 0.3% to 7,414.2 by 1247 GMT, after closing flat in the previous session. Miners climbed 1.8% after iron ore and copper prices rose overnight as floods in top consumer China sparked demand hopes at a time when inventories were falling. OZ minerals surged 9.8% and was on track for its best day since March 2020 after it raised its annual gold output forecast and reported a 33% jump in its second-quarter copper output.