Possible guage

Does anyone know what this is? Magnetic steel.

base%20pic top%20pic O%20ring%20groove%20pic
"rim” .468
“rim thickness” .049
diameter of “extractor grove” .345
“belt” .468
“belt thickness” .207
diameter at O ring .4025
diameter at top .403
OA length 2.145

Thanks,
Dan

Hi Dan,

It is a chamber plug used when cleaning the barrel to prevent gun oil or solvent from seeping into the action.

The manufacturer is Sinclair International (from 2010 catalog). Yours is #PG-8 for .25-06, .270 Win. and .30-06.

Regards,

Fede

1 Like

That didn’t take long!
Thanks Fede!
Dan

Thanks for sharing , I would have had no idea.