Originally Posted by The Oregonian
I considering have Darrell Holland build a 280 rem - I can use his actions, but it is quite a bit cheaper to use a rem 700 action.
Thx in advance.
"So my question is whether a 7mm mag action is essentially the same as a 280? "
Short answer: No, the 7 mag action uses a mag bolt face. The bottom of the action is also different... If you want a 280 just use a 30-06 / 270 action.
"Or are there other calibers that would work for building a 280 off of a 700 action?"
You could build a 7mm SAUM from a 7mm mag action. Very similar to a 280 AI + in power.
I built one and I like it a lot.