jd from the looks of them they are either Warne or Talley. To me they look like Talley and if thats the case they are priced similarly too Talley's own. The buckmark is a neat touch! Dang why did you have to show us that? LOL now I might have to pick up a set of those for my Browning rifles.

Strengthwise they probably aren't as strong as Talley's own machined alloy one piece ring/base set that was recently released. I have some on a few guns and they are AWESOME. The price is right as well. Remember you are getting the ring and base together and the whole unit only runs around $40!
RA