hi guy's, right as i,m new into rifles and will be buying 2 or 3 in the next few weeks was wondering whilst looking at the howa deal thats on whats the difference in sporter weight barrels and varmint barrels. is one better than the other or is it weight,length. i,m looking for one in 22/250 mainly for foxs and one in 270 for mainly deer. dint want to ask in my local gun shop in case i sounded dumb as a mule and they might try and flog me donkey.cheers stav