Hey all, new guy here.
This thread keeps coming up at the top of Google's results when searching for "Tikka T3x scope mount", so I just wanted to add my experience with different rings for 50- and 56-mm scopes. Hope you don't mind the thread resurrection.
Anyway, I bought a rifle that came with a Hawke 2.5-10x50 mounted on Warne Maxima steel vertically-split rings. The scope cleared the barrel by about 3 mm, which seems about perfect.
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I had a new 56 mm scope, though, so the Hawke and Warne combo came off immediately. The Warne rings seem well-made enough, but I don't want or even trust a clamp design that relies on the same screws to grip both the rail and the scope tube. Also, they're on the heavier side at over 160 grams in medium height.
I had a few options on hand for mounting my Zeiss 3-12x56 HT: Leupold QR and Sportsmatch HT073.
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The barrel gap with the extra-high Leupold rings was excessive, so I went with the simpler SMs.
The clearance is now more like 5 mm, so it doesn't integrate quite as perfectly as the earlier setup, but it's still a nice fit. The high QR rings from Leupold would get it a bit closer to the barrel, but the SMs still save some weight and I like the four-bolt scope tube clamping a lot, plus they give you some fore-aft adjustment. I left out the recoil pin so I could slide the front ring forward; the rail clamps go plenty tight for the moderate amount of recoil the 6.5x55 rifle produces.
I'm really happy with the setup after getting it sighted in. The next thing to do will be to take it off and test whether it returns to zero.
If the Sportsmatch rings can hold zero after dismounting and remounting, then they're the clear winner for me. I like the lighter weight (lower still in the medium height), the wide scope clamping area, the adjustability, and idea of two pairs of big screws clamping directly on the rail compared to the much skinnier ones used for the drilled-and-tapped receiver mounting option.
Hope this helps anyone who's looking at scope mounting options for a Tikka.