In May, 1767, the Regiment marched to Canterbury, and in the winter of 1768 it was in winter cantonments in Lincoln and Boston.
In 1769 they went to Scotland, returning the next year to Warwick, Lichfield and Stratford-upon-Avon.
The greater part of 1771 was spent in cantonments in Dorsetshire and Somersetshire. In 1772 the Regiment was stationed at Canterbury, with detachments on coast duty in Kent. In May, 1773, it marched into quarters at Greenwich and the neighbouring villages; and on May 22nd King George the Third reviewed the Greys,—expressing his high admiration of the Regiment's appearance and discipline.
The newspapers of the time describe the day as particularly fine, and allude to the great crowds assembled to witness "the martial appearance and correct manœuvring of this gallant old corps."
The Regiment now went to Ipswich and Bury St. Edmund's, and in the autumn extended its quarters to Norwich. In 1774 it marched to York, and again sent detachments on coast duty. In the spring of 1775 it marched again North, and remained in Scotland until April, 1776. After this it spent 11 months in Lancashire. Next the Regiment went to Worcester for a summer station, passing the autumn in Gloucester, Tewkesbury, Pershore, and Ludlow.
In 1778, when the War of Independence broke out, no heavy cavalry corps were sent to North America; but the establishment of the Greys was increased by some 250 men and horses, and 48 of these were equipped as Light Dragoons. The "light" part of the Regiment now consisted of 6 sergeants, 6 corporals, and 84 private men; and in April, 1779, these light horsemen were incorporated, with detachments from the 7th, 15th and 16th Dragoons, into a Regiment which was numbered 21st Dragoons. During the summer of 1779 the Greys were encamped on Salisbury Plain, and other Dragoon Regiments with them. In November the Regiment went into quarters at Marlborough, Chippenham, Colne, and Malmesbury.
In the autumn of 1780 they marched into Worcestershire.
In January, 1781, two troops requisitioned by magistrates on account of disturbances, marched to Ludlow. In June the Regiment marched into Dorsetshire.
In 1782 the Regiment was at Durham, and in 1783 went north to Scotland. In this year, peace having been made with the United States of America, the Regiment's establishment was reduced to 232 all told.
In 1784 they marched south, and were stationed 11 months in Manchester.