I have recently acquired a Rem 700 Mountain SS in 280 . Had a hard time finding ammo but managed to find some Win Silvertip 140 gr. I also have a Rem 700 SPS 270 win and the 280 seems to have a little more juice. I plan on reloading ,when I can find some RL 19 , and using 140 gr bullets . This is an interesting caliber and plan on using it a lot . This probably does not help but I am in the same boat as you.