Ozzistraightshooter Chamber Reamer set for chambering 300 Blackout rifles.
 
Precision 300 AAC Blackout Finisher reamer..
Made to CIP European standard dimensions.
 
With these tools you can cut a precision chamber for your 300 Blackout Rifle.
This reamer uses a live pilot to avoid damage to the critical barrel surfaces.
Pilot is approx 7.58 mm.
 
These are top quality tools designed for professional use.
Should only be used by a professional Gunsmith.
 
Made in Serbia from German Bohler S705 steel.
 
Can also be used for delicate cleaning of existing chambers.