someone on another site posted that TOW had .58 GM barrels in stock so i didn't waste any time and jumped on it.this is the 1"wide 1/70" 32",i started with 90g vol. 2f goex-t/c precut patch lubed with lehigh valley lube and speer .570 ball.this loaded very easy.at 25yds. it hit 4" low and left of the bull.as that one seemed a little loose i tried two prelubed .010 ox-yoke originals patches,these pushed in hard with the starter but went down nice after that.3 shots grouped 2"at 25yds. about 1" low and strung out horz.next i setup at 50yds.and shot one round that was 4" low.so i made my first sight adj. and also upped the goex to 100g vol.sent another downrange that hit 1 1/2" low but center of bull.left the sights alone and sent 3 more at the target.my 4 shot group on this brand new barrel was 1 3/4" :lol: :lol: :lol: for me shooting open sights i can't shoot my.22 much better.i'm thinkin my poor inlines are gonna be lonely come deer season.......karl