But what about burrs that are in grooves? You can't polish those, sand paper will smooth out only the inner riffling, not that outer in grooves. When pellet is pushed through manually the resistance that can be felt can be one on any place of riffling.
@paulsurbanhunter2457Ай бұрын
@JohnDoe-el5ir Great question. That's where the diameter of the slug becomes more critical. You can usually see it up at the choke. Whether the slug is Rubbing. the groove or Rubbing all your lands evenly. Depending on how the slug feels when I push it through the barrel. I definitely want it to Come in contact evenly. When it exits, the barrel is critical.
@LoschinitopcpRd11 ай бұрын
Gracias por el video
@erniesirontech769122 күн бұрын
Wow 400 or 600 grit huh? Congratulations you just screwed up your barrel ,I am a machinist by hobby not pro but you will sand off few thousands believe it or not because is way to aggressive but who knows I can be wrong, but I did that once before and I ruined a barrel because half one thousands became one thousands because Inside diameter you have to keep that in mind....