I wounded a buck at about 80-90 yards with my smoothbore barrel on my 870 express this weekend and it is pushing me over the edge towards splurging for a rifled barrel/scope for my 870. The remington and hastings barrels cost over 200$ and I am a poor college kid so that would be tough to swallow, I saw that mossberg also makes rifled slug barrels for the 870, and saw some going for 130$. Are these worth buying and will they be accurate like the more expensive rifled barrels?