Bsa... I don’t know that I’ve looked into a better trigger option... if I did I forgot what I came up with!
It’s been used primarily to chew thru the lower rungs of bulk ammo at swinging steel and usually in a rapid manner.
As such I can’t give you an accurate review on inherent precision. I wouldn’t expect too much from it in that regard
But I’m not kidding when I say it’s been run hard and dirty. Nary a hiccup. Same goes for a brothers rifle so sample of 2