Gunsmithing .338 win mag to 338 lapua, possible?

[huntler]

I picked up a nice Sako trg-s in 338 win mag. I was wondering what would be involved in converting it to 338 Lapua. Would you just need to ream the chamber or is there more to it? I'm not a gunsmith as you can tell.

hunter

 

[BHP9]

Re: .338 win mag to 338 lapua, possible?

Case differences.

Win Mag - Belted
LM - Non-belted.

Case head Dia.

Win Mag - .532"
LM -.585"

COAL.

Win Mag - 2.170"
LM - 2.729"

Length to base of shoulder.

Win Mag - 2.040"
LM - 2.180"

It would be too much work to redo the gun to LM. The bolt face would need to be opened and them the action may not be long enough to handle the OAL of the LM.

Get a rifle already chambered in .338LM.