I ended up with one that is very presentable on exterior, inside imagine one of the worst bores you have ever seen. Thinking the .62 option but there is one crater just inside the muzzle that might be a little past the .030" on that side. If it does not clean at .62 would anybody know the REAL do not exceed safe bore dimension on these TC's? I understand lining is an option which that sends me down many other rabbit holes. I have several new in box fast twist 50 Apollo barrels that could be used for liner donors, buy a liner, barrel length kind of short for slow RB twist in my head but a 25" cannon ball size SB might be a fun stroll and could always line later if no joy found. I have seen several names on here suggested for the services required, any recommendations at this time? Always enjoy the honest thoughts and replies Fellers!