The fast-burning powders that hand-loaders often find so satisfactory for revolver loads--Unique, Blue Dot, HS6, HS7
, Norma R-123--are not compatible with the rifle.
We'd recommend you start by confirming that you are, in fact, using HS7
, and that your powder charge is correct.
The lineup includes the company s first battery-powered Wi-Fi Speaker (Model H4 Portable), advanced Wi-Fi Sound Bars (Models HS7
and HS91) and the Streaming 3D Blu-ray Player (Model BP550).