Thread: seeking advice on a suitable caliber and make/model

Hello all. My first post on this forum!
It might be time for a new gun for me. I am mostly hunting tops and open areas, main target being deer but I will likely go and chase some tahr in the near future. I'm keen to look into a longer-range setup than my current 7mm08. I'm looking for advice on a suitable caliber, and suggestions re make/models, that would allow me to shoot out to approx 500m using factory ammo. I've been thinking about a 7mm rem mag based on some reviews and conversations. I wont be able to go custom or overly fancy but keen to get something that is proven, reliable, not too heavy, and available in NZ. Quite interested in the Bergara models, although they do seem on the heavier side. Anybody got experience with these? Or other suggestions? Thanks all.