Complex sentence: The record reached number 1 on the UK Singles Chart for the first two weeks in May 1971 (where it was credited to Dave and Ansil Collins) and reached the top 30 of the "Billboard" Hot 100, peaking at number 22.
Split into simpler sentences: The record reached number 1 on the UK Singles Chart for the first two weeks in May 1971 (where it was credited to Dave and Ansil Collins). In the US, Double Barrell reached the top 30 of the "Billboard" Hot 100, peaking at number 22.