My two cents...
The Tikka T3 will almost definitely shoot circles around the BLR. Both BLRs and BARs, while decent enough rifles, nevertheless are not known for spectacular accuracy...as in, sub MOA groups...that is much more commonly found with bolt actions.
Next, the T3 will probably cost you less, too.
The T3 Lite, on both this forum and another I frequent stateside, is getting almost unanimous rave reviews from owners. I've handled one...my son-in-law's...just enough to know that those rave reviews are merited. It's a terrific rifle, especially for the dough they cost. It's pretty easy to spend twice as much, or more, and end up with less actual performance.
That said, I think the Sako A7 might even be better, a sort of slightly refined version of the Tikka. (same manufacturer)
Not to say that there aren't other good bolt actions out there, too. But I sure am hearing and reading a lot of really good stuff about these two particular models.
Caliber? The future, IMHO, is with the 300 WSM, which I think is becoming one of those turning point rounds in the same manner as were the 30.06 Spfld, .308 Win., and .223. For moose, doesn't get any better.
That said, I think there's a good argument for the .270 WSM, too. I'm increasingly of the opinion that heavy bullets, at least for N. American game (short of bison and griz), are somewhat overrated. The way ammo has evolved over the last decade, the advent of well constructed/designed bullets, and the consistent quality now found in factory ammo, and the kind of performance one can count on from 120 to 150 gr. ammo, is making a believer out of me in calibers that are a tad easier on the shoulder, and considerably more enjoyable to indulge for more than a dozen rounds at a time at the range.
I personally don't think a 180 gr. Barnes TSX or whatever of similar quality will kill anything from a moose on down any better or faster than will a 130 gr. bullet of the same quality, all else being equal. And 180 grs will never compensate for a lousy shot. What the 130 will do better is fly straighter and faster, making 300 yd shots that much more forgiving. Yes, beyond 350 yds the heavier bullets won't deflect as much with a cross wind, but then I don't shoot at stuff beyond that range anyway. And out to 350 yds deflection on 100 to 150 gr bullets on most days isn't usually significant enough to fret, IMHO.
The last bull elk I took was with my 300 WM, using Federal Premium Barnes 130 gr. TTSX, which leaves the barrel at a sizzling 3600 fps, and drops all of 4" at 300 yds. Got it at about 100 yds, through the front shoulder. It hunched up hard, and made it about 30 yards to where it dropped stone dead. Lungs were blown to absolute rat unowhat! The shock from impact of that warp speed bullet was so severe, I think, that it never drew another breath.
Don't know how many posts I've read from those who have taken every elk they've ever shot with a 25.06, cleanly and very often DRT. Me, I think that's maybe stretching the limits of that caliber a tad, but don't try to convince these guys of that!
For some reason the 7mm WSM hasn't caught on, and may go the way of calibers like the 6mm Rem. over the long term.
FWIW.
