[jeff348]

Looks like a Win choke to me. Looked up dim of thread. Both Win and Rem choke are .814-32 threads.

 

[Smithy47]

I did a quick check of some of my choke tubes, Invector, Invector plus, and Remchoke. Here are what they checked. Regards, Bob

 

[Jim Meverden]

Smithy, thanks, your drawing just helped me identify some chokes I was confused about.

 

[Shoemaker]

Guys, thanks for the replys. I screwed the choke tube into an invector plus barrel and it went in past the knurling and was not yet seated so I stopped at that point. It will not fit into a Rem-choke barrel or a invector (win-choke) barrel.

 

[Dustydoo]

Measurements don't match my Ruger.