ORIGINAL: Dozen Arrows

I bought an 870 combo it comes with both the rifled barrel has twists in it and a smooth bore barrel for turkeys and small game. I am new in the world of shotguns.

My question is I bought some Remington slugger rifled slugs thinking that I should use them for my rifled barrel with twists in it. However, when I read the box on the slugs it tells me NOT to use them in a demascus or rifle twisted barrel.

Should I keep these and just use and use them in the smooth bore barrel that was desinged for small game?

I really do NOT want to have to spend $12 for a box of 5 rounds compared to the $4 that I paid for these.