During its evaluation, it was noted that the Brunswick's unique round meant that the Brunswick rifle could not fire the standard British paper cartridges in use at the time. The rifle was also noted as being very heavy, and that it fired a relatively low velocity round. Despite these detriments, the rifle performed much better than expected, and the Master-General of Ordnance ordered the rifle to be produced with a 30-inch barrel of .654 caliber. The new rifle was designed to accept a bayonet, though the design was changed with the mounting moved farther back since experience had shown that the Baker rifle could not be fired with its bayonet fixed.