I have built lots of rifles on Mauser actions, as a custom rifle builder I would recomend not going to the Lott however the .458 Win Mag is an easy conversion. If you need help give me a call if you want and I will help if I can. # is 207-938-3595 and the web site if you want to contact me that way is customguns.us
-------------------- It is the small calibers that are the biggest bores.