Tube inserts/liners (what ever the process is called)?
Hypothetical question: guy picks up a nice 20 ga non-ejector gun but there is deep pitting in the barrels to the point where it may not be able to be polished out without compromising the integrity of the barrels. One option would be to have permanent inserts installed taking the gun from a 20 to a 28. Is that a viable option and, if so, what is the approximate cost?
Other than sleeving, what other options are available and relatively cost effective?
Thank you,
JDG
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