I had a 275 Rigby built on a VZ24 action two years ago and never regretted it. Also there is a 7X57 AI that loves 160gr bullets and a pre 64 M70 carbine in 7X57. I also have a Weatherby Ultra light 7mm/08. There isn't a deer that will know the difference with a 140gr -160gr bullet put in the right place. Enjoy the 7x57 it has the class and is well proven over time to get the job done. The Rigby like H414 and 140gr Accubonds, The AI favors IMR 3031 and 160gr Speer Grand Slams but I'm going to try some 160gr Accubonds, the M70 so far has only seen factory 140's.