The crossword solution for the term 'musket end' is 'EER', which stands for 'Enfield Pattern 1853 Rifle-Musket'. This was a type of muzzle-loading rifle-musket used by the British Army during the 19th century. It was the standard infantry weapon of the British Army from 1853 until it was replaced by the Martini-Henry in 1871. The Enfield Pattern 1853 Rifle-Musket was also used by both sides during the American Civil War.