I have 3 of them now.
Mine are the TR (Tragectory Rangefinder)3-9x40WA, they all have the range finder, bullet drop comp. & were made in Japan.
My first one I bought in '84 & it has always been on my .300WM which has seen over 1500 rnds of hand loads.
It has been very well abused & still holds zero. I have crashed my ATV 3 times with it on & once lost it off the seat of my jeep at 30 MPH. It is dented & scared but I have never had to re-zero it.
My son has one on his .300WSM & my other one is on a .308.
In the late '90s I bought a bunch of these TR scopes (made in China) & none lasted a season on a .308 or .300WM.
I sent the 4 of them back to Tasco (they were redirected to Bushnell as they bought them out). They replaced them with a newer model of Tasco without the TR option.
At that same time, my 2 buddies bought Bushnell 3x9's & put them on their .308s. After 3 shots the cross hairs broke on both of them.