going to get a 308 saiga rifle what barrel???

[IWantATurbo]

they come with a 16 or a 21.8 i gan get the 16 for over $100 cheaper is the 21.8 worth the $100?

this will be just a plinking gun and a varmit shooter. maybe deer and antalope? i would like to be able to shoot somthing at 300 yards?