I like the Warne rings that use the receiver grooves but they only seem to make a medium height for the T3x - I’ve also used the rail in the link paired with Warne 1” or 30mm low rings for objectives up to 44mm.

https://www.ebay.com/itm/3931267592...r=&widget_ver=artemis&media=COPY

Works for me - but there are many options