Hello ally, I use a 5-20 - 50 OPTIMATE on my HMR which i bought for £165 about 2 years ago & it gives a very clear image,gathers light very well,holds its zero and the corrections are precise in a nutshell it does exactly what its supposed to do ( i shoot dawn to dusk out to 200 yards ),they are EDGAR BROS of macclesfield own line of scopes and are made in japan,they dont have a fancy name or price but i cant fault mine and will buy another for my next rifle,lee