Brand New Rifle w/ bullet feeding issuies

I have a new unfired Patriot in 308 that i just mounted the scope on. I have some issues with loading the ammunition. I was at a buddys house mounting the scope and he was explaining various types of his 308 bullets. As i go cycle the bullet it does not even chamber in fully and gets stuck. I am not able to fully close the bolt We tried all different 308 bullets and here is what fits and does not fit based on what we had .

PPU Match 168g/ Did Not fit/Cycle
M.A.L 7.62 (mil surplus)/ Did not Fit/Cycle
Remingtion CoreLock 150g/ Fit but little tight/snug closing bolt
Winchester Match 168g/ Fit
Hordany Whitetail 150g/ Fit

All these fit both in his and his brothers savage rifles in 308.

Im going to call mossberg tomorrow and see what they think. Is it because its a unfired? is there a break in?Any input will much be appreciated.

Are you loading one at a time or from the mag?

I’ve tried both from the mag and Just a hand fed

Did you have the mag out with one in the camber. I've had issue with every Magpul mag i had to clip some loops out of the springs to smooth out the actoin.