Thread: Throat Erosion - New Barrel

Common old CLR (Calcium, Lime, Rust remover at $20 for a lifetime supply from the hardware store) will take out carbon from barrels without any ill effects - the last thing you want in the barrel of a rifle with the throat being eroded is more abrasive like JB paste . . .

As and example - I used it on an Annie 22 that looked to have a perfect bore but wasn't shooting that well - it produced a prodigious amount of carbon and the rifle is again a tack driver.

Watch the Eric Cortina video on it . . . . https://www.youtube.com/watch?v=xte_pf3ZhsA