rifled barrels were designed for shooting sabots and work pretty good with them, smoothebore barrels are for use with rifled slugs to put a spin on slug for better results, from what I've seen some people do that used slugs in rifled barrels the slugs load up the grooves with lead and change your accuracy from poor performance. cheap is almost never better but you can find some reasonable sabots if you shop around, myself I'd only shoot the sabots I intend to use for hunting and just shoot less of them til the prices come in line.