40calPUNISHER
Master
- Apr 23, 2008
- 2,333
- 48
I am considering porting my vent rib shotgun barrel myself. Im starting with a 28 inch and cutting it down to 20 inch. Is there anything that I need to know or do before I get started? Does it matter how far back from the muzzle I should start or stop? Any patterns I should or shouldn't do? Any advise appreciated.