Necking down 300 Win to 270.

[1bamashooter]

I'm wanting to build a 270/300 win to replace a 270stw I lost in a house fire. I've got a 300 and plenty of brass so I figured I'd just build that instead of a 270 WBY or another STW. I necked down the stw in one sizing could I do the same for the 300 or would two be better? Also would neck turning be required after sizing?

 

[Huntaddict]

Why not have a custom reamer made? Since you are already going to have to rebarrel, all you need to do is change the neck specs on the reamer and get a Redding Type S die set and resize only the necks. Done and done

 

[1bamashooter]

Why not have a custom reamer made? Since you are already going to have to rebarrel, all you need to do is change the neck specs on the reamer and get a Redding Type S die set and resize only the necks. Done and done

Sounds like that's what I'll do!

 

[Ol' Red]

That sounds interesting. Following

 

[K.E.C. Darkside]

It may take 2 maybe 3 sizing to go from 308 to 277. Just a couple bushings.
And Maybe need to turn neck's.
Usually do need to. Depends on your reamer dimensions.

I think it's a Great Idea.