Remington .270, 150 grain.
Not unless the Smith is chambered in caliber .270 Weatherby- and I have never seen one that was.
270
It's the caliber of the cartridge it fires.
Definitely Not !!
I believe that a .270 caliber, .308, .30-30, and .243 caliber rifles are great calibers to hunt deer with. I think that a .30-06 is just a bit overkill, but sometimes i will use that. i use eather a .270 or a .308 most of the time when i hunt white tail deer
No one knows.
Have a gunsmith verify the exact 270 chambering. <><><> Agree. The standard .270 cannot fire the .270 WSM, and vice versa.
300 or so.
It can only safely accept the 270 Weatherby Magnum if that is what it is chambered for. If you want to chamber it in some other caliber than get a new rifle. Just because two bullets have the same diameter bullet (270 or any other caliber) does not make it safe to fire it in your gun.
Really depends on the load, but the .270 is typically the more powerful of the two.
Generally speaking, no. You can only fire the caliber for which the gun is chambered. There are some exceptions, but not many.