There are plenty of edges built on small shank 110 actions. I do not know of anyone with a 338 LM built on one. With the larger chamber area I do not know if it would be a problem. I have a 110 FCP-HS in 338 LM. It appears that any steel that is lost in barrel shank is made up in receiver thickness, but I do not know about that in regards to the Lapua. Someone on here is bound to have one.