small base dies

...because I can't pass them up. I was in Academy today and noticed a number of RCBS dies on clearance. Among which was a two-die set of RCBS small base 223 dies marked from $49.99 to $34.99. Now, I normally use a Lee full-length sizer on my 223 reloads for AR, and haven't had trouble, but...

Hi, I have some rcbs ar series small base dies and i have a mostly used it for standard ar15 with 16" barrels, But i have a one precision gun that i wanted to get a more precise shoulder bump on the cases. I was wondering if these smwll base dies can be used for just bumping the shoulder back...