Greetings,
Eureka!!!!
My friend gunsmith was darn right(and some of you too). Yesterday we put the final touch to my predicament and killed it!!!
He took the aluminum mount from Kalinka Optic, removed the picatinny rail on the top, drilled and tapped it, picked up 2 steel rings, drill and tapped them, and fixed them on the mount.
Previously, I had "expensive" "high quality" aluminum low profile rings. All that aluminum was making the scope "assembly" move each time I was firing and it was not resetting at the same place.
Now, I have a group of 1 1/2 MOA at 100 yards with Czech Ammo. I did not try to find out which ammo works the best for me.
In his young years, he was a high level competitor in sniping rifle matches (I guess it comes from his Recon Marines days) and he told me two things about that rifle:
1 - You can hear that safety click at 500 yards away...
2 - Switch from the steel cases ammo to any brass ammo because of the lubricity. When the bullet leaves the steel case, it has to force its way out. With brass it "slides" out. At longer ranges, it will make a HUGE difference.
Thank you
P.S.: oh! I had to shim my scope under the scope in the rear ring and I shimmed the mount at the rear where the 2 brass screws are. And he said I did it right.
Coming from him it is a very nice compliment. Sorry, I had to brag on that. I am getting better and better and better thanks to all of you and my incredible superior intellect....