Which gun is this?

[John McGillivray]

Hello Colin,

If you look closely at the gun trail closest to the camera you can see the spade mounted in its travelling position on the outside of the trail (bottom right of photo).
When I was in the artillery back in the 70's the 105s were known as C1's. My understanding is that the construction method used on the barrel of the Canadian guns was different then that used on the US guns, but I don't know the details. Also the riflings on the Canadian gun ended about two inches from the end of the barrel. On the American guns, the torque caused by the shell leaving the end of the barrel would distort the muzzle and lead to cracking. As a result of these changes the Canadian guns had a must longer barrel life then the American guns.