Over 2 dozen triggers I have modded with them and it has brought down the trigger pull to about 3.5#. You will have light primer strikes if running a harder prime round (russian)... pass that, with a little polishing works like a charm.
Just bunk! Have shot over 100 rds of 7.62 Nato and the can still came off the mount with No issues.
Think Inconel = SBR and Titanium = More precision work. And 1-2 dbs to the nake ear is a very large difference
Gotcha... looking at it from Sig, the design hasn't changed any. But do see where there may be a problem if said barrel (i.e. bull barrel) was a thick diameter and/or threads were threaded short though.
https://www.youtube.com/watch?v=-KRq2SHeoj0