The top 10 regular scorers in my local BR25 , 8 use HFT500s, 1 an XTI50 and one a very tweaked HW100. These are off bipods and a rear bag on the whole, standard stocks, a couple use adjustable front rests of various designs and rear lab Jacks. I use diopters only, and use an Annie 9015, as do 3 others in the 15yd open sight competition.
Bang for buck, a HFT500 with the right pellets will take a lot of beating in my opinion