Almost immediately, the caliber was changed from .654 to .704 under a new program of standardization. An altered pattern was submitted in August 1837, and the first bulk order of 1000 rifles was given on October 25, 1837. In January of the following year, it became apparent that 600 of these would be required urgently for Col. Brown’s Battalion of the Rifle Brigade and that the Enfield factory would not be able to supply them in time. Thus the whole order was put out to the trade in London at a charge of 38s per rifle. The first Brunswick rifles were made by the following gunmakers: