T.H. the pic below was just to illustrate how much slack there is in a 303 mag box if converted without a front rubbing strip when a 7.62 mag is placed in it.



The pic is of a normal 303 mag box so I didn't have to dissasemble the converted 7.62 mag box with the wooden rubbing strips to the front and top of lid (pic below) to illustrate the point.



Just for clarrification L4A1 7.62 LMG magazines will only fit in either the converted box above or the factory made box (below) with the mouth of the magazine facing the hinge and the spine up (the same orientation as a 303 magazine) Trying to fit one spine down in a converted box with timber rubbing strips it wil not go in all the way and on the new made box 7.62 mag box it will not go in at all.



Not sure why I would want to try and fit a 303 mag in a 7.62 LMG mag box ? I think there may be a bit of confusion on this ?

ATB KG