Steve here... i'm troubled. I have a no dash 686, I bought a b-square no drill mount. I mounted a vintage M8 4x leupold on it, and with 5 grns of unique under 20-1 H&G 73's I shot two one inch groups at 25yds. Then it went to 4inches.... The lone front screw couldn't take the beating, it was wobbled and stretched when I took it out. I really don't want to drill holes in the strap. Any other no drill options, before I buy a Weigand and put three 6-48's in the top strap...
Thanks
Steven