thanks guys...I have a browning gold with 28" barrel and a Remington 1187 with 26" barrel. Both guns have the choke tubes...The reason I asked the question is because I don't use them enough for deer hunting to justify a new slug barrel and scope. I will try the improved cylinder tube with different slugs and pattern. I certainly don't see myself taking a shot much more than 50-60 or maybe 70 yards. Thanks for the help...