Picky SASS

[phantomreefer]

Hello All,

So after looking at many rifles to buy to start a collection (I am very new to this) I ended up being the proud owner an Armalite SASS. I bought from a marine, who built it out himself(with the parts listed below). When I run Hornady(first 200 rounds) down the pipe, she runs smooth as can be. But when I tried a box of Winchester, every other round did not load proper. Can anyone give some input as to why this is happening? Thanks in advance.

Precision Rail Monopod w/Quick Knob, Mark 4 LR/T 8.5-25x50mm (30mm) M1, KynSHOT AR.308 Full Fixed Stock Precision Hydraulic Recoil Damper<http://www.buffertech.com/KynSHOT-AR308-Full-Fixed-Stock-Precision-Hydraulic-Recoil-Damper-P329.aspx>; , Tactical-Style 30mm Scope-Mounted Picatinny Adaptor, Burris FastFire II Reflex Red Dot Sight 4 MOA with Picatinny Mount Matte ,  AR-10 S.S.A.S.S. CHARGING HANDLE GAS BUSTER ,ARMS THROW LEVER ADAPTER FOR HARRIS TYPE BIPOD, Harris Bipod 6' to 9'.

thanks again.

keith