I had a .300 Win. Mag. and it kicked like a mule. I hated it. I never shot it. It sat in my closet and collected dust until I paid someone about $200 to take it off my hands. ( I sold it for $500 but it was worth $565 plus the Barnes muzzle break I put on it.) The muzzle blast combined with the recoil made me flinch. A very bad thing when it comes to hitting your target.
Look at the trajectories and sectional densities of the .270 Win. bullets vs. the .30-06. The .270 shoots flatter and hits hard enough to take either species of deer out to any range you can hit them with it. Another good flat shooting caliber would be the .25-06. You don't need a cannon for deer.
Just my 2 cents. Good hunting. TJ
