Well, I will meet up with him today and take alook at his gun. I have plenty of experience with rifled slug barrels, I shot sabots since they came out and Ive always had a cantilever barrel on my slug guns. I dont think his smooth bore is cantilevered but I'll look at it and maybe it will be up for-sale if not. I will be seting up a slug gun so after thinking about it I'll be gettin another full rifled cantilever slug barrel and take the guess work out of the rifled choke and slug issue's I think Ill go back to my Remington Copper Solid sabots. Thanks for the replies, Brad