I put the photo through photoshop to try and pick some more of the detail out, especially on the shoulder. I inverted the image and what appears to be a number 17 is on the shoulder which would indicate that this man could have been in the British 17th Regiment which became the Leicestershire regiment in 1881. But then above that is what appears to be the badge of a Fusilier regiment, so he could also have belonged to a battalion of a Fusilier regiment. Suppose he could also be a Royal Engineer who also wore the grenade emblem on their epaulets. Hmmm.