Seeing as you havn't had any help with your enquiry,heres my tuppenceworth.
I recently imported a BSA Platinum 6-24x44 mildot from the US,( I don't know if this model is available in the UK ).I am very pleased with the build and the optics.Very bright and focuses down to about 12 yards.I've not tried rangefinding with it yet,but if the quality of the scope is anything to go by, it should be OK.And all for the princely sum of £94,and thats including air mail from the US,Customs duty, and £4 for the good old Royal Mail.
Will