I don't have any feel for how a 7MM campares to a 300 win or a 270
What is the order of size /caliber cartridge size etc. of the above bullets?
270(270wsm) is .277 cal - 130-160gr
7mm rem mag(280 rem, 7mm-08, 7wsm, etc)is .284 cal - 140-175gr
300 win or wsm or 3006 or 308,etc is all .308 cal - 150 - 200 gr
The gr size of bulletsare what is typically used in each caliber for Big game hunting butdependant on the chambering, rifle preferences and game hunted the listcan narrow.
All would be fine. Ipersonally wouldn't buy another 270 as you might as well either tote your exsiting rifle you know and loveif notadd to the collection. I haven't found anything that 7mm rem mag would do here that a 300 would do better, they really are like spliting hairs upto Moose sized game. So IMO either would be a fine choice. If your buying factory ammo no shortage as both are very popular & well established.