as already said, load to mag length, it will have a massive jump, who cares, its not an Fclass gun.
make sure they feed well from the mag, just because they "JUST" fit, doesn't mean they will feed well. have done a number of loads for the Tikkas and they all seem to be the same with feeding nice once you get the length right.
load some groups of 3 in a ladder with 2217 from 68.5-70.5gn or there abouts depending on brass and action it may like more but work up to it. go shoot em, it will like one of them more than the rest, replicate it and confirm it then that's your load.
job done
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