The center of gravity is also probably 3/4" higher with the strike eagle than a PST on a hunting rifle. If you're shooting a chassis gun it doesn't matter, but it's a bigger deal when you're lightweight hunting rifle is top heavy.
OP, sorry to thread jack. Bottom line, I think you'll regret the Strike Eagle on your Tikka. In order to give some input, can you give us a bit more info?
What's it chambered in?
How far do you realistically plan to shoot it? Everybody wants to be Chris Kyle, but do you need that much mag?
How well do you understand ballistics?
Maybe both are grossly too much for your skill set and planned use case. If you never plan to shoot beyond 400 yards, you don't need either one. A rugged 3-9 from a reputable manufacturer will do all that and more. Or maybe you're a full time PRS shooter, I'm not sure. But it would help if you gave us some context to your plans and intended use.