Wanting to buy ruger m77 RSM 458 lott

[Littlechucky4570]

I'm looking to buy a ruger RSM 458 lott ,would consider RSM In 458 win mag thank you

 

[ActionBob]

The true RSM was never manufactured in 458 Win Mag. The RSM is a Mark II. But has an integral quarter rib machined in as part of the barrel. Pretty unique and special feature of that model. And the word is that Ruger lost money on each and every one. But built them because Bill wanted to, and could afford to. The RSM also has a few other special things about them.

The 458 Win mags I've seen are older model guns prior to the Mark II. No quarter rib. Nothing special.

 

[Littlechucky4570]

Ok thank you for the information

 

[krish]

A picture of quarter rib. Visual help.

 

[Littlechucky4570]

Thank you