S&L M70 is the model with standard trigger, M77 is adjustable trigger, made in Denmark, some info here.
http://billard85.########.ca/
Front sights take standard anschutz inserts, rear peep is an odd threading and I don't remember what it is. I sent one to a fellow in the USA who makes different peep sights for Lyman and Mossberg etc and he made a few up for me with different sized apertures. They are high quality wood and steel rifles with great triggers. Extractor but no ejector, you have to pluck the spent case out.
Last one I got had a sticker from a 2012 match so they still seem to be in use. Headspace is adjusted with shims in front of the bolt handle.
I hope you like it, old world quality you don't see much anymore.
Here the quantities produced of each model:
M70: about 7500
M77: about 3000
S/N range:
M70 No. 17498-24932
M77 No. 24933-27996