It appears that the SMI website is gone and I need a spare Breech Plug and some Vent Liners for an NEF 50Cal conversion. This conversion was just made in the last few months. And, if anyone has a copy of the SMI load data that they had on their web site I would really like to have copy of that also. After getting the conversion done and then, by the time I got the time to start shooting it...SMI seems to have disappeared from the web. Any help would be appreciated.