Top of the range £40??????????? I suggest you check other prices. A set of Apel mounts will set you back in excess of £200 now possibly even £300. Optilocks I understand are around £110. the Leupold Q/R lever operated bases and rings are just over £80 I think you'll find. Heck I see they charge over £30 for those horrid alloy sportsmatch air gun jobbies.
Use the net and do a search.
Those horrid sportsmatch airgun jobs are standard issue on the militaryAccuracy International sniper rifle!........they do a set of bases for th tikka rifles which allows any of their mounts to be fitted, and the whole set up doesn't cost the earth!!
I hear many of you saying 'but they are alloy and will shift'......well after having an issue with my optilocks moving (backwards, in the same way a scope would move on a spring airgun) on my old sako after i moderated it i went to see a chap who is both a very reputable riflesmith and also an engineer....Peter jackson of Jackson rifles. I asked about the one piece SAK mounts that he was selling for the sako and tikka rifles and he said that because they are made of alloy they grip better on the action and so they wouldn't shift even though they have no locating peg. So i bought one!...£70 at the time, and i got my money back from the optilocks. The SAK indeed never shifted and now when i think back....neither did any sportsmatch mounts on my spring airguns!
I don't think Peter sells them anymore, perhaps due to peoples misconception regarding alloy mounts and them not selling too well. If i hadn't got my optilocks thrown in with my rifle when i bought it i would definately have gone for the sportsmatch set up......and not only sved money but also had the option of different rings!
Another option is to get hold of a picattiny rail for the tikka...and again there are many other manufacturers who make rings to fit the weaver/picatinny rails, sportsmatch included!......and again this gives you alot more options regarding the changing of scopes.
Shop around and do a bit of research before rushing into buying mounts and bases, because there are many options out there that are cheaper, give you more choice, and yet are as good if not better than the 'recommended' optilock option.
regards
steve