Is there a thread showing how well factory ammo can do? If not, can some of you guys put up pics of what your rifle is capable of with factory ammo? I would like to see some self-defense ammo in the mix, if possible, with 10 round groups (but 5 will do if that is all you have). In addition, I'd like to limit it to AR-type rifles with 16" to 20" barrels. Thanks.