Catch turnout L/HPECO Streamline O CODE 124 Bullhead O Gauge LH Catch Turnout The purpose of a Catch Turnout is to derail a vehicle before it rolls out of a siding or branch line on to a main line. Peco Streamline Bullhead 0 Gauge track has set unsurpassed standards for 7mm scale realism. Superbly detailed, its 'wood grain' sleepers are the correct scale width and have integrally moulded scale chairs with square headed fixing bolts and wooden keys. This range is