depends on the rifle and the scope. Most scopes will use 1 inch rings for that type rifle.
270
270
Should serve you well. You will need mounts and rings.
The proper base/bases and rings.
.270 WCF means Winchester Center fire. Yes, same round- and IMHO, one of the best rifle cartridges ever made.
No, .270 wsm and .270 winchester are not the same.
It's the caliber of the cartridge it fires.
.270 is the larger calibre of the two.
No
DO NOT ATTEMPT TO DO THIS!!!!!!!!!!!! DANGER!!!!!!!!!!!!!!!!!!!! UNSAFE!!!!!!!!!!!!!!!!!!
No. Only use what is stamed on the barrel.
Model dependent