I had the top strap crack and completely break on a T3 Varmint in .300 WM. Happened on a western deer hunt but luckily I filled my tags before it completely let go. I contacted Talley and they promptly replaced the mounts but that didn’t help with my new lack of confidence in their LW alloy rings. I still use them on all my Tikkas...hoping the odds of a repeat failure are slim to none.