ormondprop,
Ret choice is very personal if you like to use hold over points then the mil dot (43) will suit you well however, if you use the dial in method or use a very flat shooting rifle then a simple (60) dot is sufficient.
The choice is yours
i have a mildot scope already and never use the mildots so i think i'd prefer to go for a normal cross such as the 40 or 60, i'll have to look through them to decide, is the 40 very thick?
I think the 60 is much better have a look here http://www.zeiss.de/C12567A80033F8E4...256A7300451C05
How much are these scopes?
B.A.S.C | HW100Tuning KT250bar+reg+tune .177+4-16x50 | HW95.177 +4-16x44 + Paul Short Stage 4 & Trigger Tune | TX200HC.22 + 4-16x44 | HW97KT.22 + 4-16x44 + Paul Short Stage 4 & Trigger Tune
Try The Sportsman gun centre I think they still have some stock at old price (£1,299) if not you will do well to get one under £1,500