GETTING MY WHERE TO BUY AMMO TO WORK

In the 1st one hundred I had a fired shell jam Hence the action couldn't even open up. This was my S&W M&P nine which cycles ANYTHING. Had to hammer a screwdriver down the barrel. Anything fired great once again until eventually a little bit about three hundred rounds and experienced a similar kind of jam, besides it was Reside! I whacked the gun i