The first tactical belt I bought, I love. I almost bought and had my mind set on a SOE or Spec Ops belt but not knowing what I was getting into with a totally different style (I have always worn full grain leather or issue military belts) belt, I decided to buy local. The local gun shop had Galco belts, and it has been an absolute amazing belt. I bought the Instructors Belt Galco offers. I bought this to help support my conceal carry, so the added stitching helps a ton. Even with this reinforcement, the belt is super comfortable.
http://www.galcogunleather.com/instructors-belt-non-reinforced-1-3-4-_8_256_1163.html
I initially bought it to help support my pants and .40 when I conceal carry, but found it to be so great that I wear it as much as I can. It is beyond comfortable and supports me beyond what I was expecting. I've only been wearing it for a few months and feel like I haven't even broke it in yet. I presume it will last me many, many years. If I were to take off on a RTW wold trip tomorrow, this would be around my waist. If I was still in the Corps and going to war tomorrow, I would be wearing this belt. -though the SOE and Spec Ops belts are also highly regarded. -which I still may purchase, just to have.
The buckle/clasp capacity I am unsure of, but I am confident that someone could hook up to it and pull my body weight (250 pounds) without question.