I looked into this when I designed my own 338 wildcat on the 416 Rigby case, as the Lazzeroni case is the same size.
I got good info from it, but getting brass into Australia was going to be a PITA, so I went with my own design.
The Lazzeroni brass offered is very strong, it would mirror the strength of the Peterson 338XC brass available today.
Unfortunately for me, I had to go with Norma brass as that was all I could get and after 3 firings the brass is toast.
I think you will struggle if you want to build on a Rem 700 action, as it has been noted that lug setback is a real concern with a .588" case head.
Mine is built on a highly modified CZ550 Safari action and is single shot only.
I am looking at building another rifle on a Borden, either 338 Lapua Improved 35° or 33XC, still unsure. Need the better brass.
You will like the Lazzeroni, I remember the first write up on them in Rifleshooter magazine.
Cheers.