I've been wanting to try them as well. Haven't seen them in stock on Normas website in 7mm yet, but have seen 300 win mag. Also if you have a Murdochs ranch store around, they get a good amount of Norma ammo.
I think its just to give the first season elk hunters a better chance. Personally I always hunt first rifle because there are far less hunters out there, and if you hear shooting you know its elk. That being said, 5 day seasons can be tough sometimes
I'm originally from Allentown but have lived in CO since 2007. If you are planning an elk hunt, the sooner the better. Once wolves are re-introduced in packs the game doesn't stand a chance!