yes
IIRC, Winchester.
Yes. The .270 is simply a necked down .30-06 cartridge, and thus the action would be the same as the .30-06.
long
long
If it's a 270 load, yes.
500-1000 USD
Long action.
The .270 Winchester is a long action cartridge. It is a .30-06 Springfield necked down to hold a .277 caliber bullet.
Yes 3006, 270 is a long action 308, 243 is a short action.
Winchester model 275 is a .22 cal. magnum (WMF) slide action rifle. It is identical to the model 270, which is chambered for standard .22 cal. short, long and long rifle. Though no longer in production, it is following its predasessor, the model 61 as a sought after collectors piece.
Your serial number indicates that your Winchester model 70 bolt action rifle was made in the year 1956.
No, .270 wsm and .270 winchester are not the same.