If I’m not mistaken (I could be) the T3’s are all built on the same action with the same length bolt. The only thing that changes is the bolt face, the bolt stop and the magazine. So in the case of the Tikka I don’t believe there is any weight savings in a short action chambering. If you buy a rifle with different length actions of course there would be a weight savings.I have a tikka t3 .300wsm my only complaint was recoil but after I put a muzzle brake on it it’s a great rifle. Because it’s a short action you save on weight compared to a WM. I shoot 168 barns TTSX and It’s extremely accurate.
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For under $1K the Tikka is the best for sure. The 7 Rem Mag is a great all around cartridge. And the recoil is less than the 300's too.
The 300 WSM is far more efficient than the 300 Win Mag with bullets in the 165 - 180 grain range. The 300 Win Mag excels with the heavier bullets. Both are killers on elk and moose sized game. The animal won't know the difference at any range...
Monkey wrench time - take a look at the 6.5 PRC or the 6.5x284 Norma. They are freight trains on game out to 750 with still about 1300 foot lbs of energy left and no recoil. Just saying...
Ah hell, just get a 7 Rem Mag and be done with it....
The WSM 's in my opinion are over (all of them ), Based on short case technology that has shown good progress in ballistics and accuracy it just did not capture the popularity it needed to sustain it's existence. Despite that it had shown good performance on paper they have seemed to fail .The 300 had the best shot but that even seem's to be going away and that's a shame IMO . It was a great try but just did not get it's get go. Sorry to see this but many other caliber's like the 264 Win mag and the 350 rem mag have fallen to the same types of prejudice.