[Murderface]

What kind of mag system are you using? I'm shooting berger bullets cause i cant get my ogive to the lands so im curious how others are handling this issue with reloads.

Nail Driver,
The mag system is just the stock one off the old rifle. Just pull it out of the old stock and it fits snug into the GRS.
I'm using Sierra Palma Match 155gn. I have them seated as far out as possible, just enough so the wont fall out of the case. They are still not touching the lands though. They wont fit into the mag, so I have to single feed, however that's not an issue while target shooting. For hunting loads I use Sierra Gamekings 150gn SPBT, also I have been using Winchester roundnose (.30-30) projectiles. The pig was taken using Winchester roundnose projectile. All loads are with 44gn of 2206H powder. Hunting rounds are seated deep enough to fit into the mag.
I know that Tikka's have a long throat to accommodate longer projectiles. I have been toying with the idea of using some 200 to 220gn Berger's and seat them to the lands but really I still have about 700 Palma Sierras which are shooting fine for now. Bergers have a really long ogive so you'll never get them to seat on the lands with a 155gn VLD or similar. Its just one of those things about Tikka's is the length of the throat. Other than getting a gunsmith to adjust it, there's not much else I can think of to correct it. Maybe if you did alter the throat the gun might shoot like crap. You never know.

[Murderface]

Hi them stocks are the dogs b*ll**ks if didn't go for third eye I would have a GRS stock there one of the best finished stocks I've seen

Larkin, yes the finish on the stock is exceptional. The action drops straight in and even came with a new recoil lug. It has the GRS logo etched into the side and the edges of the logo are so sharp and defined you would swear it couldn't possibly be made of wood. Well worth the investment.

[Murderface]

I wouldn't get too carried away with “breaking in” a new barrel. Fire 1 or 2 rounds give it a clean, then a couple more, give it a clean and continue this for about 15-20 rounds. Do this whilst sighting in the scope. But let the barrel cool down between cleaning. Any one piece cleaning rod and bore guide that fits will do the job sufficiently. As for rings. Leupold is what I got on both my Tikka's and I haven't needed to adjust them since putting them on. Enough said there. I'm not a big fan of Burris scopes, Also I think the Burris Fullfield scopes don't have a parallax adjustment either. I would rather spend a bit more money and get some quality glass and you will appreciate the difference in the long run especially hunting as you will always have light issues.

[Murderface]

Yes, I would try a different brand of primer. I use CCI, I cant remember the last misfire I had. I don't like anything Remington, guns, ammo or components.
BTW 1.5″ group? If your reloading you should do better than that.