If you are only shooting to 100 yards, why not get a hornet? It will be cheaper to shoot! :grin:
Sorry, have to tease. I have shot silhouette with my open sight .223. Closest targets were 50 yards. Furthest out to 200 meters. With the scoped .223, it really doesn't get fun till you get to 200 yards plus.
Get the 15" barrel and see how fun they get at 200 yard plus!!
Good luck and enjoy whichever you choose.
Steve
