Need help with reamer.

[Caleb85]

I am building a 7mm mag and I am looking for a reamer, I am wanting to chamber it for 168 to 180 gr bergers, a guy told me about the 7mm custom nighthawk and wanted to know if anyone knew anything about it. Here is the print, is this somthing I would be needing?

 

[sable tireur]

Caleb85,

Decide if you are using an internal box magazine or a DBM (SAAMI or CIP) and what the useable OAL is for your choice. Then create 3 dummy cartridges loaded to that length with the bullets of your choice and send them to the reamer maker of your choice. No muss, no fuss, no mess. They may have something already in file that will work or they can grind a reamer just to your specs.

The other method used is to have your gunsmith use a SAAMI spec reamer and then use a throating reamer to extend the throat to match your dummy rounds.

Regards.

 

[Caleb85]

Caleb85,

Decide if you are using an internal box magazine or a DBM (SAAMI or CIP) and what the useable OAL is for your choice. Then create 3 dummy cartridges loaded to that length with the bullets of your choice and send them to the reamer maker of your choice. No muss, no fuss, no mess. They may have something already in file that will work or they can grind a reamer just to your specs.

The other method used is to have your gunsmith use a SAAMI spec reamer and then use a throating reamer to extend the throat to match your dummy rounds.

Regards.

Thank you ! I was just hoping that this reamer would work so there would be no wait.

 

[shortgrass]

Thank you ! I was just hoping that this reamer would work so there would be no wait.

Any time you're thinking about a 'special' plan on having to WAIT! (unless the gunsmith already has that 'special' in his tool box) [which I do, but it has a tight, no turn neck]