I want to learn a little on what needs to be done to a factory action and magazine so that it will carry and feed long handloads properly.

Any suggestoins?

My M700 270 Winchester seats all bullets out to the lands without any mag modifications.

ZM

I have a Rem 700 Titanium 7mm-08 that won't take long handloads, and 3 Sako .375H&H that won't either, I have seen this problem in newer rifles more often than not.

Hopefully the .300wm action is long enough that it won't need it any mods.